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			10371 lines
		
	
	
	
		
			393 KiB
		
	
	
	
		
			Text
		
	
	
	
	
	
+++++++++++
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Python News
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+++++++++++
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What's New in Python 3.4.4rc1?
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==============================
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Release date: tba
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Core and Builtins
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-----------------
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- Issue #24402: Fix input() to prompt to the redirected stdout when
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  sys.stdout.fileno() fails.
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- Issue #24806: Prevent builtin types that are not allowed to be subclassed from
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  being subclassed through multiple inheritance.
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- Issue #24848: Fixed a number of bugs in UTF-7 decoding of misformed data.
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- Issue #25280: Import trace messages emitted in verbose (-v) mode are no
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  longer formatted twice.
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- Issue #25003: os.urandom() doesn't use getentropy() on Solaris because
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  getentropy() is blocking, whereas os.urandom() should not block. getentropy()
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  is supported since Solaris 11.3.
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- Issue #25182: The stdprinter (used as sys.stderr before the io module is
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  imported at startup) now uses the backslashreplace error handler.
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- Issue #24891: Fix a race condition at Python startup if the file descriptor
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  of stdin (0), stdout (1) or stderr (2) is closed while Python is creating
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  sys.stdin, sys.stdout and sys.stderr objects. These attributes are now set
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  to None if the creation of the object failed, instead of raising an OSError
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  exception. Initial patch written by Marco Paolini.
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- Issue #21167: NAN operations are now handled correctly when python is
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  compiled with ICC even if -fp-model strict is not specified.
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- Issue #4395: Better testing and documentation of binary operators.
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  Patch by Martin Panter.
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- Issue #24467: Fixed possible buffer over-read in bytearray. The bytearray
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  object now always allocates place for trailing null byte and it's buffer now
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  is always null-terminated.
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- Issue #24115: Update uses of PyObject_IsTrue(), PyObject_Not(),
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  PyObject_IsInstance(), PyObject_RichCompareBool() and _PyDict_Contains()
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  to check for and handle errors correctly.
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- Issue #24257: Fixed system error in the comparison of faked
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  types.SimpleNamespace.
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- Issue #22939: Fixed integer overflow in iterator object.  Patch by
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  Clement Rouault.
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- Issue #23985: Fix a possible buffer overrun when deleting a slice from
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  the front of a bytearray and then appending some other bytes data.
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- Issue #24102: Fixed exception type checking in standard error handlers.
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- Issue #23757: PySequence_Tuple() incorrectly called the concrete list API
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  when the data was a list subclass.
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- Issue #24407: Fix crash when dict is mutated while being updated.
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- Issue #24096: Make warnings.warn_explicit more robust against mutation of the
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  warnings.filters list.
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- Issue #23996: Avoid a crash when a delegated generator raises an
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  unnormalized StopIteration exception.  Patch by Stefan Behnel.
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- Issue #24022: Fix tokenizer crash when processing undecodable source code.
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- Issue #23309: Avoid a deadlock at shutdown if a daemon thread is aborted
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  while it is holding a lock to a buffered I/O object, and the main thread
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  tries to use the same I/O object (typically stdout or stderr).  A fatal
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  error is emitted instead.
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- Issue #22977: Fixed formatting Windows error messages on Wine.
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  Patch by Martin Panter.
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- Issue #23803: Fixed str.partition() and str.rpartition() when a separator
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  is wider then partitioned string.
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- Issue #23192: Fixed generator lambdas.  Patch by Bruno Cauet.
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- Issue #23629: Fix the default __sizeof__ implementation for variable-sized
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  objects.
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- Issue #24044: Fix possible null pointer dereference in list.sort in out of
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  memory conditions.
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- Issue #21354: PyCFunction_New function is exposed by python DLL again.
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Library
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-------
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- Issue #25510: fileinput.FileInput.readline() now returns b'' instead of ''
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  at the end if the FileInput was opened with binary mode.
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  Patch by Ryosuke Ito.
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- Issue #21827: Fixed textwrap.dedent() for the case when largest common
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  whitespace is a substring of smallest leading whitespace.
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  Based on patch by Robert Li.
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- Issue #25471: Sockets returned from accept() shouldn't appear to be
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  nonblocking.
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- Issue #25441: asyncio: Raise error from drain() when socket is closed.
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- Issue #25411: Improved Unicode support in SMTPHandler through better use of
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  the email package. Thanks to user simon04 for the patch.
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- Issue #25380: Fixed protocol for the STACK_GLOBAL opcode in
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  pickletools.opcodes.
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- Issue #23972: Updates asyncio datagram create method allowing reuseport
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  and reuseaddr socket options to be set prior to binding the socket.
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  Mirroring the existing asyncio create_server method the reuseaddr option
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  for datagram sockets defaults to True if the O/S is 'posix' (except if the
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  platform is Cygwin). Patch by Chris Laws.
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- Issue #25304: Add asyncio.run_coroutine_threadsafe().  This lets you
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  submit a coroutine to a loop from another thread, returning a
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  concurrent.futures.Future.  By Vincent Michel.
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- Issue #25319: When threading.Event is reinitialized, the underlying condition
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  should use a regular lock rather than a recursive lock.
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- Issue #25232: Fix CGIRequestHandler to split the query from the URL at the
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  first question mark (?) rather than the last. Patch from Xiang Zhang.
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- Issue #24657: Prevent CGIRequestHandler from collapsing slashes in the
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  query part of the URL as if it were a path. Patch from Xiang Zhang.
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- Issue #22958: Constructor and update method of weakref.WeakValueDictionary
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  now accept the self and the dict keyword arguments.
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- Issue #22609: Constructor of collections.UserDict now accepts the self keyword
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  argument.
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- Issue #25262. Added support for BINBYTES8 opcode in Python implementation of
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  unpickler.  Highest 32 bits of 64-bit size for BINUNICODE8 and BINBYTES8
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  opcodes no longer silently ignored on 32-bit platforms in C implementation.
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- Issue #25034: Fix string.Formatter problem with auto-numbering and
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  nested format_specs. Patch by Anthon van der Neut.
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- Issue #25233: Rewrite the guts of asyncio.Queue and
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  asyncio.Semaphore to be more understandable and correct.
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- Issue #23600: Default implementation of tzinfo.fromutc() was returning
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  wrong results in some cases.
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- Issue #25203: Failed readline.set_completer_delims() no longer left the
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  module in inconsistent state.
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- Prevent overflow in _Unpickler_Read.
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- Issue #25047: The XML encoding declaration written by Element Tree now
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  respects the letter case given by the user. This restores the ability to
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  write encoding names in uppercase like "UTF-8", which worked in Python 2.
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- Issue #19143: platform module now reads Windows version from kernel32.dll to
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  avoid compatibility shims.
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- Issue #23517: Fix rounding in fromtimestamp() and utcfromtimestamp() methods
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  of datetime.datetime: microseconds are now rounded to nearest with ties
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  going to nearest even integer (ROUND_HALF_EVEN), instead of being rounding
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  towards zero (ROUND_DOWN). It's important that these methods use the same
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  rounding mode than datetime.timedelta to keep the property:
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  (datetime(1970,1,1) + timedelta(seconds=t)) == datetime.utcfromtimestamp(t).
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  It also the rounding mode used by round(float) for example.
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- Issue #24684: socket.socket.getaddrinfo() now calls
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  PyUnicode_AsEncodedString() instead of calling the encode() method of the
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  host, to handle correctly custom string with an encode() method which doesn't
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  return a byte string. The encoder of the IDNA codec is now called directly
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  instead of calling the encode() method of the string.
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- Issue #24982: shutil.make_archive() with the "zip" format now adds entries
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  for directories (including empty directories) in ZIP file.
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- Issue #24857: Comparing call_args to a long sequence now correctly returns a
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  boolean result instead of raising an exception.  Patch by A Kaptur.
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- Issue #25019: Fixed a crash caused by setting non-string key of expat parser.
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  Based on patch by John Leitch.
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- Issue #24917: time_strftime() buffer over-read.
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- Issue #23144: Make sure that HTMLParser.feed() returns all the data, even
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  when convert_charrefs is True.
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- Issue #16180: Exit pdb if file has syntax error, instead of trapping user
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  in an infinite loop.  Patch by Xavier de Gaye.
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- Issue #21112: Fix regression in unittest.expectedFailure on subclasses.
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  Patch from Berker Peksag.
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- Issue #24931: Instances of subclasses of namedtuples have their own __dict__
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  which breaks the inherited __dict__ property and breaks the _asdict() method.
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  Removed the __dict__ property to prevent the conflict and fixed _asdict().
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- Issue #24764: cgi.FieldStorage.read_multi() now ignores the Content-Length
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  header in part headers. Patch written by Peter Landry and reviewed by Pierre
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  Quentel.
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- Issue #24774: Fix docstring in http.server.test. Patch from Chiu-Hsiang Hsu.
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- Issue #21159: Improve message in configparser.InterpolationMissingOptionError.
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  Patch from Łukasz Langa.
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- Issue #23888: Handle fractional time in cookie expiry. Patch by ssh.
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- Issue #23004: mock_open() now reads binary data correctly when the type of
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  read_data is bytes.  Initial patch by Aaron Hill.
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- Issue #23652: Make it possible to compile the select module against the
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  libc headers from the Linux Standard Base, which do not include some
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  EPOLL macros.  Patch by Matt Frank.
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- Issue #22932: Fix timezones in email.utils.formatdate.
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  Patch from Dmitry Shachnev.
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- Issue #23779: imaplib raises TypeError if authenticator tries to abort.
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  Patch from Craig Holmquist.
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- Issue #23319: Fix ctypes.BigEndianStructure, swap correctly bytes. Patch
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  written by Matthieu Gautier.
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- Issue #23254: Document how to close the TCPServer listening socket.
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  Patch from Martin Panter.
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- Issue #19450: Update Windows and OS X installer builds to use SQLite 3.8.11.
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- Issue #23441: rcompleter now prints a tab character instead of displaying
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  possible completions for an empty word.  Initial patch by Martin Sekera.
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- Issue #24735: Fix invalid memory access in
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  itertools.combinations_with_replacement().
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- Issue #17527: Add PATCH to wsgiref.validator. Patch from Luca Sbardella.
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- Issue #24683: Fixed crashes in _json functions called with arguments of
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  inappropriate type.
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- Issue #21697: shutil.copytree() now correctly handles symbolic links that
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  point to directories.  Patch by Eduardo Seabra and Thomas Kluyver.
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- Issue #24620: Random.setstate() now validates the value of state last element.
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- Issue #22153: Improve unittest docs. Patch from Martin Panter and evilzero.
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- Issue #24206: Fixed __eq__ and __ne__ methods of inspect classes.
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- Issue #21750: mock_open.read_data can now be read from each instance, as it
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  could in Python 3.3.
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- Issue #23247: Fix a crash in the StreamWriter.reset() of CJK codecs.
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- Issue #18622: unittest.mock.mock_open().reset_mock would recurse infinitely.
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  Patch from Nicola Palumbo and Laurent De Buyst.
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- Issue #24608: chunk.Chunk.read() now always returns bytes, not str.
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- Issue #18684: Fixed reading out of the buffer in the re module.
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- Issue #24259: tarfile now raises a ReadError if an archive is truncated
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  inside a data segment.
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- Issue #24552: Fix use after free in an error case of the _pickle module.
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- Issue #24514: tarfile now tolerates number fields consisting of only
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  whitespace.
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- Issue #19176: Fixed doctype() related bugs in C implementation of ElementTree.
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  A deprecation warning no longer issued by XMLParser subclass with default
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  doctype() method.  Direct call of doctype() now issues a warning.  Parser's
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  doctype() now is not called if target's doctype() is called.  Based on patch
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  by Martin Panter.
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- Issue #20387: Restore semantic round-trip correctness in tokenize/untokenize
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  for tab-indented blocks.
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- Issue #24456: Fixed possible buffer over-read in adpcm2lin() and lin2adpcm()
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  functions of the audioop module.
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- Issue #24336: The contextmanager decorator now works with functions with
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  keyword arguments called "func" and "self".  Patch by Martin Panter.
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- Issue #24489: ensure a previously set C errno doesn't disturb cmath.polar().
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- Issue #5633: Fixed timeit when the statement is a string and the setup is not.
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- Issue #24326: Fixed audioop.ratecv() with non-default weightB argument.
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  Original patch by David Moore.
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- Issue #23840: tokenize.open() now closes the temporary binary file on error
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  to fix a resource warning.
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- Issue #24257: Fixed segmentation fault in sqlite3.Row constructor with faked
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  cursor type.
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- Issue #22107: tempfile.gettempdir() and tempfile.mkdtemp() now try again
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  when a directory with the chosen name already exists on Windows as well as
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  on Unix.  tempfile.mkstemp() now fails early if parent directory is not
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  valid (not exists or is a file) on Windows.
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- Issue #6598: Increased time precision and random number range in
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  email.utils.make_msgid() to strengthen the uniqueness of the message ID.
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- Issue #24091: Fixed various crashes in corner cases in C implementation of
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  ElementTree.
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 | 
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- Issue #21931: msilib.FCICreate() now raises TypeError in the case of a bad
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  argument instead of a ValueError with a bogus FCI error number.
 | 
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  Patch by Jeffrey Armstrong.
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 | 
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- Issue #23796: peek and read1 methods of BufferedReader now raise ValueError
 | 
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  if they called on a closed object. Patch by John Hergenroeder.
 | 
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 | 
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- Issue #24521: Fix possible integer overflows in the pickle module.
 | 
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 | 
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- Issue #22931: Allow '[' and ']' in cookie values.
 | 
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 | 
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- Issue #20274: Remove ignored and erroneous "kwargs" parameters from three
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  METH_VARARGS methods on _sqlite.Connection.
 | 
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 | 
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- Issue #24094: Fix possible crash in json.encode with poorly behaved dict
 | 
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  subclasses.
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 | 
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- Asyncio issue 222 / PR 231 (Victor Stinner) -- fix @coroutine
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  functions without __name__.
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 | 
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- Issue #9246: On POSIX, os.getcwd() now supports paths longer than 1025 bytes.
 | 
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  Patch written by William Orr.
 | 
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 | 
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- The keywords attribute of functools.partial is now always a dictionary.
 | 
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 | 
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- Issues #24099, #24100, and #24101: Fix free-after-use bug in heapq's siftup
 | 
						|
  and siftdown functions.
 | 
						|
 | 
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- Backport collections.deque fixes from Python 3.5.  Prevents reentrant badness
 | 
						|
  during deletion by deferring the decref until the container has been restored
 | 
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  to a consistent state.
 | 
						|
 | 
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- Issue #23008: Fixed resolving attributes with boolean value is False in pydoc.
 | 
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 | 
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- Fix asyncio issue 235: LifoQueue and PriorityQueue's put didn't
 | 
						|
  increment unfinished tasks (this bug was introduced in 3.4.3 when
 | 
						|
  JoinableQueue was merged with Queue).
 | 
						|
 | 
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- Issue #23908: os functions now reject paths with embedded null character
 | 
						|
  on Windows instead of silently truncate them.
 | 
						|
 | 
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- Issue #23728: binascii.crc_hqx() could return an integer outside of the range
 | 
						|
  0-0xffff for empty data.
 | 
						|
 | 
						|
- Issue #23811: Add missing newline to the PyCompileError error message.
 | 
						|
  Patch by Alex Shkop.
 | 
						|
 | 
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- Issue #17898: Fix exception in gettext.py when parsing certain plural forms.
 | 
						|
 | 
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- Issue #22982: Improve BOM handling when seeking to multiple positions of
 | 
						|
  a writable text file.
 | 
						|
 | 
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- Issue #23865: close() methods in multiple modules now are idempotent and more
 | 
						|
  robust at shutdown. If they need to release multiple resources, all are
 | 
						|
  released even if errors occur.
 | 
						|
 | 
						|
- Issue #23881: urllib.request.ftpwrapper constructor now closes the socket if
 | 
						|
  the FTP connection failed to fix a ResourceWarning.
 | 
						|
 | 
						|
- Issue #23400: Raise same exception on both Python 2 and 3 if sem_open is not
 | 
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  available.  Patch by Davin Potts.
 | 
						|
 | 
						|
- Issue #15133: _tkinter.tkapp.getboolean() now supports Tcl_Obj and always
 | 
						|
  returns bool.  tkinter.BooleanVar now validates input values (accepted bool,
 | 
						|
  int, str, and Tcl_Obj).  tkinter.BooleanVar.get() now always returns bool.
 | 
						|
 | 
						|
- Issue #23338: Fixed formatting ctypes error messages on Cygwin.
 | 
						|
  Patch by Makoto Kato.
 | 
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 | 
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- Issue #16840: Tkinter now supports 64-bit integers added in Tcl 8.4 and
 | 
						|
  arbitrary precision integers added in Tcl 8.5.
 | 
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 | 
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- Issue #23834: Fix socket.sendto(), use the C Py_ssize_t type to store the
 | 
						|
  result of sendto() instead of the C int type.
 | 
						|
 | 
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- Issue #21526: Tkinter now supports new boolean type in Tcl 8.5.
 | 
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 | 
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- Issue #23838: linecache now clears the cache and returns an empty result on
 | 
						|
  MemoryError.
 | 
						|
 | 
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- Issue #18473: Fixed 2to3 and 3to2 compatible pickle mappings.  Fixed
 | 
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  ambigious reverse mappings.  Added many new mappings.  Import mapping is no
 | 
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  longer applied to modules already mapped with full name mapping.
 | 
						|
 | 
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- Issue #23745: The new email header parser now handles duplicate MIME
 | 
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  parameter names without error, similar to how get_param behaves.
 | 
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 | 
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- Issue #23792: Ignore KeyboardInterrupt when the pydoc pager is active.
 | 
						|
  This mimics the behavior of the standard unix pagers, and prevents
 | 
						|
  pipepager from shutting down while the pager itself is still running.
 | 
						|
 | 
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- Issue #23742: ntpath.expandvars() no longer loses unbalanced single quotes.
 | 
						|
 | 
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- Issue #21802: The reader in BufferedRWPair now is closed even when closing
 | 
						|
  writer failed in BufferedRWPair.close().
 | 
						|
 | 
						|
- Issue #23671: string.Template now allows to specify the "self" parameter as
 | 
						|
  keyword argument.  string.Formatter now allows to specify the "self" and
 | 
						|
  the "format_string" parameters as keyword arguments.
 | 
						|
 | 
						|
- Issue #21560: An attempt to write a data of wrong type no longer cause
 | 
						|
  GzipFile corruption.  Original patch by Wolfgang Maier.
 | 
						|
 | 
						|
- Issue #23647: Increase impalib's MAXLINE to accommodate modern mailbox sizes.
 | 
						|
 | 
						|
- Issue #23539: If body is None, http.client.HTTPConnection.request now sets
 | 
						|
  Content-Length to 0 for PUT, POST, and PATCH headers to avoid 411 errors from
 | 
						|
  some web servers.
 | 
						|
 | 
						|
- Issue #22351: The nntplib.NNTP constructor no longer leaves the connection
 | 
						|
  and socket open until the garbage collector cleans them up.  Patch by
 | 
						|
  Martin Panter.
 | 
						|
 | 
						|
- Issue #23136: _strptime now uniformly handles all days in week 0, including
 | 
						|
  Dec 30 of previous year.  Based on patch by Jim Carroll.
 | 
						|
 | 
						|
- Issue #23700: Iterator of NamedTemporaryFile now keeps a reference to
 | 
						|
  NamedTemporaryFile instance.  Patch by Bohuslav Kabrda.
 | 
						|
 | 
						|
- Issue #22903: The fake test case created by unittest.loader when it fails
 | 
						|
  importing a test module is now picklable.
 | 
						|
 | 
						|
- Issue #23568: Add rdivmod support to MagicMock() objects.
 | 
						|
  Patch by Håkan Lövdahl.
 | 
						|
 | 
						|
- Issue #23138: Fixed parsing cookies with absent keys or values in cookiejar.
 | 
						|
  Patch by Demian Brecht.
 | 
						|
 | 
						|
- Issue #23051: multiprocessing.Pool methods imap() and imap_unordered() now
 | 
						|
  handle exceptions raised by an iterator.  Patch by Alon Diamant and Davin
 | 
						|
  Potts.
 | 
						|
 | 
						|
- Issue #22928: Disabled HTTP header injections in http.client.
 | 
						|
  Original patch by Demian Brecht.
 | 
						|
 | 
						|
- Issue #23615: Modules bz2, tarfile and tokenize now can be reloaded with
 | 
						|
  imp.reload().  Patch by Thomas Kluyver.
 | 
						|
 | 
						|
- Issue #23476: In the ssl module, enable OpenSSL's X509_V_FLAG_TRUSTED_FIRST
 | 
						|
  flag on certificate stores when it is available.
 | 
						|
 | 
						|
- Issue #23576: Avoid stalling in SSL reads when EOF has been reached in the
 | 
						|
  SSL layer but the underlying connection hasn't been closed.
 | 
						|
 | 
						|
- Issue #23504: Added an __all__ to the types module.
 | 
						|
 | 
						|
- Issue #20204: Added the __module__ attribute to _tkinter classes.
 | 
						|
 | 
						|
- Issue #23521: Corrected pure python implementation of timedelta division.
 | 
						|
 | 
						|
 * Eliminated OverflowError from timedelta * float for some floats;
 | 
						|
 * Corrected rounding in timedlta true division.
 | 
						|
 | 
						|
- Issue #21619: Popen objects no longer leave a zombie after exit in the with
 | 
						|
  statement if the pipe was broken.  Patch by Martin Panter.
 | 
						|
 | 
						|
- Issue #6639: Module-level turtle functions no longer raise TclError after
 | 
						|
  closing the window.
 | 
						|
 | 
						|
- Issues #814253, #9179: Warnings now are raised when group references and
 | 
						|
  conditional group references are used in lookbehind assertions in regular
 | 
						|
  expressions.
 | 
						|
 | 
						|
- Issue #23215: Multibyte codecs with custom error handlers that ignores errors
 | 
						|
  consumed too much memory and raised SystemError or MemoryError.
 | 
						|
  Original patch by Aleksi Torhamo.
 | 
						|
 | 
						|
- Issue #5700: io.FileIO() called flush() after closing the file.
 | 
						|
  flush() was not called in close() if closefd=False.
 | 
						|
 | 
						|
- Issue #23374: Fixed pydoc failure with non-ASCII files when stdout encoding
 | 
						|
  differs from file system encoding (e.g. on Mac OS).
 | 
						|
 | 
						|
- Issue #23481: Remove RC4 from the SSL module's default cipher list.
 | 
						|
 | 
						|
- Issue #21548: Fix pydoc.synopsis() and pydoc.apropos() on modules with empty
 | 
						|
  docstrings.
 | 
						|
 | 
						|
- Issue #22885: Fixed arbitrary code execution vulnerability in the dbm.dumb
 | 
						|
  module.  Original patch by Claudiu Popa.
 | 
						|
 | 
						|
- Issue #23146: Fix mishandling of absolute Windows paths with forward
 | 
						|
  slashes in pathlib.
 | 
						|
 | 
						|
- Issue #23421: Fixed compression in tarfile CLI.  Patch by wdv4758h.
 | 
						|
 | 
						|
- Issue #23367: Fix possible overflows in the unicodedata module.
 | 
						|
 | 
						|
- Issue #23361: Fix possible overflow in Windows subprocess creation code.
 | 
						|
 | 
						|
- Issue #23801: Fix issue where cgi.FieldStorage did not always ignore the
 | 
						|
  entire preamble to a multipart body.
 | 
						|
 | 
						|
- Issue #23310: Fix MagicMock's initializer to work with __methods__, just
 | 
						|
  like configure_mock().  Patch by Kasia Jachim.
 | 
						|
 | 
						|
- asyncio: New event loop APIs: set_task_factory() and get_task_factory().
 | 
						|
 | 
						|
- asyncio: async() function is deprecated in favour of ensure_future().
 | 
						|
 | 
						|
- Issue #23898: Fix inspect.classify_class_attrs() to support attributes
 | 
						|
  with overloaded __eq__ and __bool__.  Patch by Mike Bayer.
 | 
						|
 | 
						|
- Issue #24298: Fix inspect.signature() to correctly unwrap wrappers
 | 
						|
  around bound methods.
 | 
						|
 | 
						|
- Issue #23572: Fixed functools.singledispatch on classes with falsy
 | 
						|
  metaclasses.  Patch by Ethan Furman.
 | 
						|
 | 
						|
IDLE
 | 
						|
----
 | 
						|
 | 
						|
- Issue #24820: IDLE now has an 'IDLE Dark' built-in text color theme.
 | 
						|
  It is more or less IDLE Classic inverted, with a cobalt blue background.
 | 
						|
  Strings, comments, keywords, ... are still green, red, orange, ... .
 | 
						|
  Selecting it displays the following warning and solution.
 | 
						|
  "IDLE Dark is new in October, 2015.  Trying to run earlier versions
 | 
						|
  of IDLE with it selected will disable colorizing, or worse.
 | 
						|
  If you might ever run an earlier release of IDLE, then before
 | 
						|
  exiting this version, either switch to another theme or hit the
 | 
						|
  'Save as New Custom Theme' button.  The latter requires a new name,
 | 
						|
  such as 'Custom Dark', but the custom theme will work with any IDLE
 | 
						|
  release, and can be modified."
 | 
						|
 | 
						|
- Issue #25224: README.txt is now an idlelib index for IDLE developers and
 | 
						|
  curious users.  The previous user content is now in the IDLE doc and is
 | 
						|
  redundant.  IDLE now means 'Integrated Development and Learning Environment'.
 | 
						|
 | 
						|
- Issue #24820: Users can now set breakpoint colors in
 | 
						|
  Settings -> Custom Highlighting.  Original patch by Mark Roseman.
 | 
						|
 | 
						|
- Issue #24972: Inactive selection background now matches active selection
 | 
						|
  background, as configured by user, on all systems.  Found items are now
 | 
						|
  always highlighted on Windows.  Initial patch by Mark Roseman.
 | 
						|
 | 
						|
- Issue #24570: Idle: make calltip and completion boxes appear on Macs
 | 
						|
  affected by a tk regression.  Initial patch by Mark Roseman.
 | 
						|
 | 
						|
- Issue #24988: Idle ScrolledList context menus (used in debugger)
 | 
						|
  now work on Mac Aqua.  Patch by Mark Roseman.
 | 
						|
 | 
						|
- Issue #24801: Make right-click for context menu work on Mac Aqua.
 | 
						|
  Patch by Mark Roseman.
 | 
						|
 | 
						|
- Issue #25173: Associate tkinter messageboxes with a specific widget.
 | 
						|
  For Mac OSX, make them a 'sheet'.  Patch by Mark Roseman.
 | 
						|
 | 
						|
- Issue #25198: Enhance the initial html viewer now used for Idle Help.
 | 
						|
  * Properly indent fixed-pitch text (patch by Mark Roseman).
 | 
						|
  * Give code snippet a very Sphinx-like light blueish-gray background.
 | 
						|
  * Re-use initial width and height set by users for shell and editor.
 | 
						|
  * When the Table of Contents (TOC) menu is used, put the section header
 | 
						|
  at the top of the screen.
 | 
						|
 | 
						|
- Issue #25225: Condense and rewrite Idle doc section on text colors.
 | 
						|
 | 
						|
- Issue #21995: Explain some differences between IDLE and console Python.
 | 
						|
 | 
						|
- Issue #22820: Explain need for *print* when running file from Idle editor.
 | 
						|
 | 
						|
- Issue #25224: Doc: augment Idle feature list and no-subprocess section.
 | 
						|
 | 
						|
- Issue #25219: Update doc for Idle command line options.
 | 
						|
  Some were missing and notes were not correct.
 | 
						|
 | 
						|
- Issue #24861: Most of idlelib is private and subject to change.
 | 
						|
  Use idleib.idle.* to start Idle. See idlelib.__init__.__doc__.
 | 
						|
 | 
						|
- Issue #25199: Idle: add synchronization comments for future maintainers.
 | 
						|
 | 
						|
- Issue #16893: Replace help.txt with help.html for Idle doc display.
 | 
						|
  The new idlelib/help.html is rstripped Doc/build/html/library/idle.html.
 | 
						|
  It looks better than help.txt and will better document Idle as released.
 | 
						|
  The tkinter html viewer that works for this file was written by Mark Roseman.
 | 
						|
  The now unused EditorWindow.HelpDialog class and helt.txt file are deprecated.
 | 
						|
 | 
						|
- Issue #24199: Deprecate unused idlelib.idlever with possible removal in 3.6.
 | 
						|
 | 
						|
- Issue #24782: In Idle extension config dialog, replace tabs with sorted list.
 | 
						|
  Patch by Mark Roseman.
 | 
						|
 | 
						|
- Issue #24790: Remove extraneous code (which also create 2 & 3 conflicts).
 | 
						|
 | 
						|
- Issue #23672: Allow Idle to edit and run files with astral chars in name.
 | 
						|
  Patch by Mohd Sanad Zaki Rizvi.
 | 
						|
 | 
						|
- Issue 24745: Idle editor default font. Switch from Courier to
 | 
						|
  platform-sensitive TkFixedFont.  This should not affect current customized
 | 
						|
  font selections.  If there is a problem, edit $HOME/.idlerc/config-main.cfg
 | 
						|
  and remove 'fontxxx' entries from [Editor Window].  Patch by Mark Roseman.
 | 
						|
 | 
						|
- Issue #21192: Idle editor. When a file is run, put its name in the restart bar.
 | 
						|
  Do not print false prompts. Original patch by Adnan Umer.
 | 
						|
 | 
						|
- Issue #13884: Idle menus. Remove tearoff lines. Patch by Roger Serwy.
 | 
						|
 | 
						|
- Issue #23184: remove unused names and imports in idlelib.
 | 
						|
  Initial patch by Al Sweigart.
 | 
						|
 | 
						|
Tests
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #25099: Make test_compileall not fail when an entry on sys.path cannot
 | 
						|
  be written to (commonly seen in administrative installs on Windows).
 | 
						|
 | 
						|
- Issue #24751: When running regrtest with the ``-w`` command line option,
 | 
						|
  a test run is no longer marked as a failure if all tests succeed when
 | 
						|
  re-run.
 | 
						|
 | 
						|
- Issue #21520: test_zipfile no longer fails if the word 'bad' appears
 | 
						|
  anywhere in the name of the current directory.
 | 
						|
 | 
						|
- Issue #23799: Added test.support.start_threads() for running and
 | 
						|
  cleaning up multiple threads.
 | 
						|
 | 
						|
- Issue #22390: test.regrtest now emits a warning if temporary files or
 | 
						|
  directories are left after running a test.
 | 
						|
 | 
						|
- Issue #23583: Added tests for standard IO streams in IDLE.
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #23445: pydebug builds now use "gcc -Og" where possible, to make
 | 
						|
  the resulting executable faster.
 | 
						|
 | 
						|
- Issue #24603: Update Windows builds and OS X 10.5 installer to use OpenSSL
 | 
						|
  1.0.2d.
 | 
						|
 | 
						|
C API
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #23998: PyImport_ReInitLock() now checks for lock allocation error
 | 
						|
 | 
						|
Documentation
 | 
						|
-------------
 | 
						|
 | 
						|
- Issue #12067: Rewrite Comparisons section in the Expressions chapter of the
 | 
						|
  language reference. Some of the details of comparing mixed types were
 | 
						|
  incorrect or ambiguous. NotImplemented is only relevant at a lower level
 | 
						|
  than the Expressions chapter. Added details of comparing range() objects,
 | 
						|
  and default behaviour and consistency suggestions for user-defined classes.
 | 
						|
  Patch from Andy Maier.
 | 
						|
 | 
						|
- Issue #24952: Clarify the default size argument of stack_size() in
 | 
						|
  the "threading" and "_thread" modules. Patch from Mattip.
 | 
						|
 | 
						|
- Issue #24808: Update the types of some PyTypeObject fields. Patch by
 | 
						|
  Joseph Weston.
 | 
						|
 | 
						|
- Issue #22812: Fix unittest discovery examples.
 | 
						|
  Patch from Pam McA'Nulty.
 | 
						|
 | 
						|
- Issue #24129: Clarify the reference documentation for name resolution.
 | 
						|
  This includes removing the assumption that readers will be familiar with the
 | 
						|
  name resolution scheme Python used prior to the introduction of lexical
 | 
						|
  scoping for function namespaces. Patch by Ivan Levkivskyi.
 | 
						|
 | 
						|
- Issue #20769: Improve reload() docs. Patch by Dorian Pula.
 | 
						|
 | 
						|
- Issue #23589: Remove duplicate sentence from the FAQ.  Patch by Yongzhi Pan.
 | 
						|
 | 
						|
- Issue #24729: Correct IO tutorial to match implementation regarding
 | 
						|
  encoding parameter to open function.
 | 
						|
 | 
						|
- Issue #24351: Clarify what is meant by "identifier" in the context of
 | 
						|
  string.Template instances.
 | 
						|
 | 
						|
- Issue #22155: Add File Handlers subsection with createfilehandler to tkinter
 | 
						|
  doc.  Remove obsolete example from FAQ.  Patch by Martin Panter.
 | 
						|
 | 
						|
- Issue #24029: Document the name binding behavior for submodule imports.
 | 
						|
 | 
						|
- Issue #24077: Fix typo in man page for -I command option: -s, not -S.
 | 
						|
 | 
						|
Tools/Demos
 | 
						|
-----------
 | 
						|
 | 
						|
- Issue #25440: Fix output of python-config --extension-suffix.
 | 
						|
 | 
						|
- Issue #23330: h2py now supports arbitrary filenames in #include.
 | 
						|
 | 
						|
- Issue #24031: make patchcheck now supports git checkouts, too.
 | 
						|
 | 
						|
Windows
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #25022: Removed very outdated PC/example_nt/ directory.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.4.3?
 | 
						|
===========================
 | 
						|
 | 
						|
Release date: 2015-02-23
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #22735: Fix many edge cases (including crashes) involving custom mro()
 | 
						|
  implementations.
 | 
						|
 | 
						|
- Issue #22896: Avoid using PyObject_AsCharBuffer(), PyObject_AsReadBuffer()
 | 
						|
  and PyObject_AsWriteBuffer().
 | 
						|
 | 
						|
- Issue #21295: Revert some changes (issue #16795) to AST line numbers and
 | 
						|
  column offsets that constituted a regression.
 | 
						|
 | 
						|
- Issue #21408: The default __ne__() now returns NotImplemented if __eq__()
 | 
						|
  returned NotImplemented.  Original patch by Martin Panter.
 | 
						|
 | 
						|
- Issue #23321: Fixed a crash in str.decode() when error handler returned
 | 
						|
  replacment string longer than mailformed input data.
 | 
						|
 | 
						|
- Issue #23048: Fix jumping out of an infinite while loop in the pdb.
 | 
						|
 | 
						|
- Issue #20335: bytes constructor now raises TypeError when encoding or errors
 | 
						|
  is specified with non-string argument.  Based on patch by Renaud Blanch.
 | 
						|
 | 
						|
- Issue #22335: Fix crash when trying to enlarge a bytearray to 0x7fffffff
 | 
						|
  bytes on a 32-bit platform.
 | 
						|
 | 
						|
- Issue #22653: Fix an assertion failure in debug mode when doing a reentrant
 | 
						|
  dict insertion in debug mode.
 | 
						|
 | 
						|
- Issue #22643: Fix integer overflow in Unicode case operations (upper, lower,
 | 
						|
  title, swapcase, casefold).
 | 
						|
 | 
						|
- Issue #22604: Fix assertion error in debug mode when dividing a complex
 | 
						|
  number by (nan+0j).
 | 
						|
 | 
						|
- Issue #22470: Fixed integer overflow issues in "backslashreplace",
 | 
						|
  "xmlcharrefreplace", and "surrogatepass" error handlers.
 | 
						|
 | 
						|
- Issue #22520: Fix overflow checking when generating the repr of a unicode
 | 
						|
  object.
 | 
						|
 | 
						|
- Issue #22519: Fix overflow checking in PyBytes_Repr.
 | 
						|
 | 
						|
- Issue #22518: Fix integer overflow issues in latin-1 encoding.
 | 
						|
 | 
						|
- Issue #23165: Perform overflow checks before allocating memory in the
 | 
						|
  _Py_char2wchar function.
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #23399: pyvenv creates relative symlinks where possible.
 | 
						|
 | 
						|
- Issue #23099: Closing io.BytesIO with exported buffer is rejected now to
 | 
						|
  prevent corrupting exported buffer.
 | 
						|
 | 
						|
- Issue #23363: Fix possible overflow in itertools.permutations.
 | 
						|
 | 
						|
- Issue #23364: Fix possible overflow in itertools.product.
 | 
						|
 | 
						|
- Issue #23366: Fixed possible integer overflow in itertools.combinations.
 | 
						|
 | 
						|
- Issue #23369: Fixed possible integer overflow in
 | 
						|
  _json.encode_basestring_ascii.
 | 
						|
 | 
						|
- Issue #23353: Fix the exception handling of generators in
 | 
						|
  PyEval_EvalFrameEx(). At entry, save or swap the exception state even if
 | 
						|
  PyEval_EvalFrameEx() is called with throwflag=0. At exit, the exception state
 | 
						|
  is now always restored or swapped, not only if why is WHY_YIELD or
 | 
						|
  WHY_RETURN. Patch co-written with Antoine Pitrou.
 | 
						|
 | 
						|
- Issue #18518: timeit now rejects statements which can't be compiled outside
 | 
						|
  a function or a loop (e.g. "return" or "break").
 | 
						|
 | 
						|
- Issue #23094: Fixed readline with frames in Python implementation of pickle.
 | 
						|
 | 
						|
- Issue #23268: Fixed bugs in the comparison of ipaddress classes.
 | 
						|
 | 
						|
- Issue #21408: Removed incorrect implementations of __ne__() which didn't
 | 
						|
  returned NotImplemented if __eq__() returned NotImplemented.  The default
 | 
						|
  __ne__() now works correctly.
 | 
						|
 | 
						|
- Issue #19996: :class:`email.feedparser.FeedParser` now handles (malformed)
 | 
						|
  headers with no key rather than assuming the body has started.
 | 
						|
 | 
						|
- Issue #23248: Update ssl error codes from latest OpenSSL git master.
 | 
						|
 | 
						|
- Issue #23098: 64-bit dev_t is now supported in the os module.
 | 
						|
 | 
						|
- Issue #23250: In the http.cookies module, capitalize "HttpOnly" and "Secure"
 | 
						|
  as they are written in the standard.
 | 
						|
 | 
						|
- Issue #23063: In the disutils' check command, fix parsing of reST with code or
 | 
						|
  code-block directives.
 | 
						|
 | 
						|
- Issue #23209, #23225: selectors.BaseSelector.close() now clears its internal
 | 
						|
  reference to the selector mapping to break a reference cycle. Initial patch
 | 
						|
  written by Martin Richard.
 | 
						|
 | 
						|
- Issue #21356: Make ssl.RAND_egd() optional to support LibreSSL. The
 | 
						|
  availability of the function is checked during the compilation. Patch written
 | 
						|
  by Bernard Spil.
 | 
						|
 | 
						|
- Issue #20896, #22935: The :func:`ssl.get_server_certificate` function now
 | 
						|
  uses the :data:`~ssl.PROTOCOL_SSLv23` protocol by default, not
 | 
						|
  :data:`~ssl.PROTOCOL_SSLv3`, for maximum compatibility and support platforms
 | 
						|
  where :data:`~ssl.PROTOCOL_SSLv3` support is disabled.
 | 
						|
 | 
						|
- Issue #23111: In the ftplib, make ssl.PROTOCOL_SSLv23 the default protocol
 | 
						|
  version.
 | 
						|
 | 
						|
- Issue #23132: Mitigate regression in speed and clarity in functools.total_ordering.
 | 
						|
 | 
						|
- Issue #22585: On OpenBSD 5.6 and newer, os.urandom() now calls getentropy(),
 | 
						|
  instead of reading /dev/urandom, to get pseudo-random bytes.
 | 
						|
 | 
						|
- Issue #23112: Fix SimpleHTTPServer to correctly carry the query string and
 | 
						|
  fragment when it redirects to add a trailing slash.
 | 
						|
 | 
						|
- Issue #23093: In the io, module allow more operations to work on detached
 | 
						|
  streams.
 | 
						|
 | 
						|
- Issue #19104: pprint now produces evaluable output for wrapped strings.
 | 
						|
 | 
						|
- Issue #23071: Added missing names to codecs.__all__.  Patch by Martin Panter.
 | 
						|
 | 
						|
- Issue #15513: Added a __sizeof__ implementation for pickle classes.
 | 
						|
 | 
						|
- Issue #19858: pickletools.optimize() now aware of the MEMOIZE opcode, can
 | 
						|
  produce more compact result and no longer produces invalid output if input
 | 
						|
  data contains MEMOIZE opcodes together with PUT or BINPUT opcodes.
 | 
						|
 | 
						|
- Issue #22095: Fixed HTTPConnection.set_tunnel with default port.  The port
 | 
						|
  value in the host header was set to "None".  Patch by Demian Brecht.
 | 
						|
 | 
						|
- Issue #23016: A warning no longer produces an AttributeError when the program
 | 
						|
  is run with pythonw.exe.
 | 
						|
 | 
						|
- Issue #21775: shutil.copytree(): fix crash when copying to VFAT. An exception
 | 
						|
  handler assumed that that OSError objects always have a 'winerror' attribute.
 | 
						|
  That is not the case, so the exception handler itself raised AttributeError
 | 
						|
  when run on Linux (and, presumably, any other non-Windows OS).
 | 
						|
  Patch by Greg Ward.
 | 
						|
 | 
						|
- Issue #1218234: Fix inspect.getsource() to load updated source of
 | 
						|
  reloaded module. Initial patch by Berker Peksag.
 | 
						|
 | 
						|
- Issue #22959: In the constructor of http.client.HTTPSConnection, prefer the
 | 
						|
  context's check_hostname attribute over the *check_hostname* parameter.
 | 
						|
 | 
						|
- Issue #16043: Add a default limit for the amount of data xmlrpclib.gzip_decode
 | 
						|
  will return. This resolves CVE-2013-1753.
 | 
						|
 | 
						|
- Issue #22966: Fix __pycache__ pyc file name clobber when pyc_compile is
 | 
						|
  asked to compile a source file containing multiple dots in the source file
 | 
						|
  name.
 | 
						|
 | 
						|
- Issue #21971: Update turtledemo doc and add module to the index.
 | 
						|
 | 
						|
- Issue #21032. Fixed socket leak if HTTPConnection.getresponse() fails.
 | 
						|
  Original patch by Martin Panter.
 | 
						|
 | 
						|
- Issue #22960: Add a context argument to xmlrpclib.ServerProxy constructor.
 | 
						|
 | 
						|
- Issue #22915: SAX parser now supports files opened with file descriptor or
 | 
						|
  bytes path.
 | 
						|
 | 
						|
- Issue #22609: Constructors and update methods of mapping classes in the
 | 
						|
  collections module now accept the self keyword argument.
 | 
						|
 | 
						|
- Issue #22788: Add *context* parameter to logging.handlers.HTTPHandler.
 | 
						|
 | 
						|
- Issue #22921: Allow SSLContext to take the *hostname* parameter even if
 | 
						|
  OpenSSL doesn't support SNI.
 | 
						|
 | 
						|
- Issue #22894: TestCase.subTest() would cause the test suite to be stopped
 | 
						|
  when in failfast mode, even in the absence of failures.
 | 
						|
 | 
						|
- Issue #22638: SSLv3 is now disabled throughout the standard library.
 | 
						|
  It can still be enabled by instantiating a SSLContext manually.
 | 
						|
 | 
						|
- Issue #22370: Windows detection in pathlib is now more robust.
 | 
						|
 | 
						|
- Issue #22841: Reject coroutines in asyncio add_signal_handler().
 | 
						|
  Patch by Ludovic.Gasc.
 | 
						|
 | 
						|
- Issue #22849: Fix possible double free in the io.TextIOWrapper constructor.
 | 
						|
 | 
						|
- Issue #12728: Different Unicode characters having the same uppercase but
 | 
						|
  different lowercase are now matched in case-insensitive regular expressions.
 | 
						|
 | 
						|
- Issue #22821: Fixed fcntl() with integer argument on 64-bit big-endian
 | 
						|
  platforms.
 | 
						|
 | 
						|
- Issue #22406: Fixed the uu_codec codec incorrectly ported to 3.x.
 | 
						|
  Based on patch by Martin Panter.
 | 
						|
 | 
						|
- Issue #17293: uuid.getnode() now determines MAC address on AIX using netstat.
 | 
						|
  Based on patch by Aivars Kalvāns.
 | 
						|
 | 
						|
- Issue #22769: Fixed ttk.Treeview.tag_has() when called without arguments.
 | 
						|
 | 
						|
- Issue #22417: Verify certificates by default in httplib (PEP 476).
 | 
						|
 | 
						|
- Issue #22775: Fixed unpickling of http.cookies.SimpleCookie with protocol 2
 | 
						|
  and above.  Patch by Tim Graham.
 | 
						|
 | 
						|
- Issue #22366: urllib.request.urlopen will accept a context object
 | 
						|
  (SSLContext) as an argument which will then used be for HTTPS connection.
 | 
						|
  Patch by Alex Gaynor.
 | 
						|
 | 
						|
- Issue #22776: Brought excluded code into the scope of a try block in
 | 
						|
  SysLogHandler.emit().
 | 
						|
 | 
						|
- Issue #22665: Add missing get_terminal_size and SameFileError to
 | 
						|
  shutil.__all__.
 | 
						|
 | 
						|
- Issue #17381: Fixed handling of case-insensitive ranges in regular
 | 
						|
  expressions.
 | 
						|
 | 
						|
- Issue #22410: Module level functions in the re module now cache compiled
 | 
						|
  locale-dependent regular expressions taking into account the locale.
 | 
						|
 | 
						|
- Issue #22759: Query methods on pathlib.Path() (exists(), is_dir(), etc.)
 | 
						|
  now return False when the underlying stat call raises NotADirectoryError.
 | 
						|
 | 
						|
- Issue #8876: distutils now falls back to copying files when hard linking
 | 
						|
  doesn't work.  This allows use with special filesystems such as VirtualBox
 | 
						|
  shared folders.
 | 
						|
 | 
						|
- Issue #18853: Fixed ResourceWarning in shlex.__nain__.
 | 
						|
 | 
						|
- Issue #9351: Defaults set with set_defaults on an argparse subparser
 | 
						|
  are no longer ignored when also set on the parent parser.
 | 
						|
 | 
						|
- Issue #21991: Make email.headerregistry's header 'params' attributes
 | 
						|
  be read-only (MappingProxyType).  Previously the dictionary was modifiable
 | 
						|
  but a new one was created on each access of the attribute.
 | 
						|
 | 
						|
- Issue #22641: In asyncio, the default SSL context for client connections
 | 
						|
  is now created using ssl.create_default_context(), for stronger security.
 | 
						|
 | 
						|
- Issue #22435: Fix a file descriptor leak when SocketServer bind fails.
 | 
						|
 | 
						|
- Issue #13096: Fixed segfault in CTypes POINTER handling of large
 | 
						|
  values.
 | 
						|
 | 
						|
- Issue #11694: Raise ConversionError in xdrlib as documented.  Patch
 | 
						|
  by Filip Gruszczyński and Claudiu Popa.
 | 
						|
 | 
						|
- Issue #22462: Fix pyexpat's creation of a dummy frame to make it
 | 
						|
  appear in exception tracebacks.
 | 
						|
 | 
						|
- Issue #21173: Fix len() on a WeakKeyDictionary when .clear() was called
 | 
						|
  with an iterator alive.
 | 
						|
 | 
						|
- Issue #11866: Eliminated race condition in the computation of names
 | 
						|
  for new threads.
 | 
						|
 | 
						|
- Issue #21905: Avoid RuntimeError in pickle.whichmodule() when sys.modules
 | 
						|
  is mutated while iterating.  Patch by Olivier Grisel.
 | 
						|
 | 
						|
- Issue #22219: The zipfile module CLI now adds entries for directories
 | 
						|
  (including empty directories) in ZIP file.
 | 
						|
 | 
						|
- Issue #22449: In the ssl.SSLContext.load_default_certs, consult the
 | 
						|
  environmental variables SSL_CERT_DIR and SSL_CERT_FILE on Windows.
 | 
						|
 | 
						|
- Issue #20076: Added non derived UTF-8 aliases to locale aliases table.
 | 
						|
 | 
						|
- Issue #20079: Added locales supported in glibc 2.18 to locale alias table.
 | 
						|
 | 
						|
- Issue #22396: On 32-bit AIX platform, don't expose os.posix_fadvise() nor
 | 
						|
  os.posix_fallocate() because their prototypes in system headers are wrong.
 | 
						|
 | 
						|
- Issue #22517: When a io.BufferedRWPair object is deallocated, clear its
 | 
						|
  weakrefs.
 | 
						|
 | 
						|
- Issue #22448: Improve canceled timer handles cleanup to prevent
 | 
						|
  unbound memory usage. Patch by Joshua Moore-Oliva.
 | 
						|
 | 
						|
- Issue #23009: Make sure selectors.EpollSelecrtor.select() works when no
 | 
						|
  FD is registered.
 | 
						|
 | 
						|
IDLE
 | 
						|
----
 | 
						|
 | 
						|
- Issue #20577: Configuration of the max line length for the FormatParagraph
 | 
						|
  extension has been moved from the General tab of the Idle preferences dialog
 | 
						|
  to the FormatParagraph tab of the Config Extensions dialog.
 | 
						|
  Patch by Tal Einat.
 | 
						|
 | 
						|
- Issue #16893: Update Idle doc chapter to match current Idle and add new
 | 
						|
  information.
 | 
						|
 | 
						|
- Issue #3068: Add Idle extension configuration dialog to Options menu.
 | 
						|
  Changes are written to HOME/.idlerc/config-extensions.cfg.
 | 
						|
  Original patch by Tal Einat.
 | 
						|
 | 
						|
- Issue #16233: A module browser (File : Class Browser, Alt+C) requires an
 | 
						|
  editor window with a filename.  When Class Browser is requested otherwise,
 | 
						|
  from a shell, output window, or 'Untitled' editor, Idle no longer displays
 | 
						|
  an error box.  It now pops up an Open Module box (Alt+M). If a valid name
 | 
						|
  is entered and a module is opened, a corresponding browser is also opened.
 | 
						|
 | 
						|
- Issue #4832: Save As to type Python files automatically adds .py to the
 | 
						|
  name you enter (even if your system does not display it).  Some systems
 | 
						|
  automatically add .txt when type is Text files.
 | 
						|
 | 
						|
- Issue #21986: Code objects are not normally pickled by the pickle module.
 | 
						|
  To match this, they are no longer pickled when running under Idle.
 | 
						|
 | 
						|
- Issue #23180: Rename IDLE "Windows" menu item to "Window".
 | 
						|
  Patch by Al Sweigart.
 | 
						|
 | 
						|
Tests
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #23392: Added tests for marshal C API that works with FILE*.
 | 
						|
 | 
						|
- Issue #18982: Add tests for CLI of the calendar module.
 | 
						|
 | 
						|
- Issue #19548: Added some additional checks to test_codecs to ensure that
 | 
						|
  statements in the updated documentation remain accurate. Patch by Martin
 | 
						|
  Panter.
 | 
						|
 | 
						|
- Issue #22838: All test_re tests now work with unittest test discovery.
 | 
						|
 | 
						|
- Issue #22173: Update lib2to3 tests to use unittest test discovery.
 | 
						|
 | 
						|
- Issue #16000: Convert test_curses to use unittest.
 | 
						|
 | 
						|
- Issue #21456: Skip two tests in test_urllib2net.py if _ssl module not
 | 
						|
  present. Patch by Remi Pointel.
 | 
						|
 | 
						|
- Issue #22770: Prevent some Tk segfaults on OS X when running gui tests.
 | 
						|
 | 
						|
- Issue #23211: Workaround test_logging failure on some OS X 10.6 systems.
 | 
						|
 | 
						|
- Issue #23345: Prevent test_ssl failures with large OpenSSL patch level
 | 
						|
  values (like 0.9.8zc).
 | 
						|
 | 
						|
- Issue #22289: Prevent test_urllib2net failures due to ftp connection timeout.
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #15506: Use standard PKG_PROG_PKG_CONFIG autoconf macro in the configure
 | 
						|
  script.
 | 
						|
 | 
						|
- Issue #22935: Allow the ssl module to be compiled if openssl doesn't support
 | 
						|
  SSL 3.
 | 
						|
 | 
						|
- Issue #16537: Check whether self.extensions is empty in setup.py. Patch by
 | 
						|
  Jonathan Hosmer.
 | 
						|
 | 
						|
- Issue #18096: Fix library order returned by python-config.
 | 
						|
 | 
						|
- Issue #17219: Add library build dir for Python extension cross-builds.
 | 
						|
 | 
						|
- Issue #17128: Use private version of OpenSSL for 3.4.3 OS X 10.5+ installer.
 | 
						|
 | 
						|
C API
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #22079: PyType_Ready() now checks that statically allocated type has
 | 
						|
  no dynamically allocated bases.
 | 
						|
 | 
						|
Documentation
 | 
						|
-------------
 | 
						|
 | 
						|
- Issue #19548: Update the codecs module documentation to better cover the
 | 
						|
  distinction between text encodings and other codecs, together with other
 | 
						|
  clarifications. Patch by Martin Panter.
 | 
						|
 | 
						|
- Issue #22914: Update the Python 2/3 porting HOWTO to describe a more automated
 | 
						|
  approach.
 | 
						|
 | 
						|
- Issue #21514: The documentation of the json module now refers to new JSON RFC
 | 
						|
  7159 instead of obsoleted RFC 4627.
 | 
						|
 | 
						|
Tools/Demos
 | 
						|
-----------
 | 
						|
 | 
						|
- Issue #22314: pydoc now works when the LINES environment variable is set.
 | 
						|
 | 
						|
Windows
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #17896: The Windows build scripts now expect external library sources
 | 
						|
  to be in ``PCbuild\..\externals`` rather than ``PCbuild\..\..``.
 | 
						|
 | 
						|
- Issue #17717: The Windows build scripts now use a copy of NASM pulled from
 | 
						|
  svn.python.org to build OpenSSL.
 | 
						|
 | 
						|
- Issue #22644: The bundled version of OpenSSL has been updated to 1.0.1j.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.4.2?
 | 
						|
===========================
 | 
						|
 | 
						|
Release date: 2014-10-06
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #10510: distutils register and upload methods now use HTML standards
 | 
						|
  compliant CRLF line endings.
 | 
						|
 | 
						|
- Issue #9850: Fixed macpath.join() for empty first component.  Patch by
 | 
						|
  Oleg Oshmyan.
 | 
						|
 | 
						|
- Issue #22427: TemporaryDirectory no longer attempts to clean up twice when
 | 
						|
  used in the with statement in generator.
 | 
						|
 | 
						|
- Issue #20912: Now directories added to ZIP file have correct Unix and MS-DOS
 | 
						|
  directory attributes.
 | 
						|
 | 
						|
- Issue #21866: ZipFile.close() no longer writes ZIP64 central directory
 | 
						|
  records if allowZip64 is false.
 | 
						|
 | 
						|
- Issue #22415: Fixed debugging output of the GROUPREF_EXISTS opcode in the re
 | 
						|
  module.  Removed trailing spaces in debugging output.
 | 
						|
 | 
						|
- Issue #22423: Unhandled exception in thread no longer causes unhandled
 | 
						|
  AttributeError when sys.stderr is None.
 | 
						|
 | 
						|
- Issue #21332: Ensure that ``bufsize=1`` in subprocess.Popen() selects
 | 
						|
  line buffering, rather than block buffering.  Patch by Akira Li.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.4.2rc1?
 | 
						|
==============================
 | 
						|
 | 
						|
Release date: 2014-09-22
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #22258: Fix the the internal function set_inheritable() on Illumos.
 | 
						|
  This platform exposes the function ``ioctl(FIOCLEX)``, but calling it fails
 | 
						|
  with errno is ENOTTY: "Inappropriate ioctl for device". set_inheritable()
 | 
						|
  now falls back to the slower ``fcntl()`` (``F_GETFD`` and then ``F_SETFD``).
 | 
						|
 | 
						|
- Issue #21669: With the aid of heuristics in SyntaxError.__init__, the
 | 
						|
  parser now attempts to generate more meaningful (or at least more search
 | 
						|
  engine friendly) error messages when "exec" and "print" are used as
 | 
						|
  statements.
 | 
						|
 | 
						|
- Issue #21642: In the conditional if-else expression, allow an integer written
 | 
						|
  with no space between itself and the ``else`` keyword (e.g. ``True if 42else
 | 
						|
  False``) to be valid syntax.
 | 
						|
 | 
						|
- Issue #21523: Fix over-pessimistic computation of the stack effect of
 | 
						|
  some opcodes in the compiler.  This also fixes a quadratic compilation
 | 
						|
  time issue noticeable when compiling code with a large number of "and"
 | 
						|
  and "or" operators.
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #21091: Fix API bug: email.message.EmailMessage.is_attachment is now
 | 
						|
  a method.  Since EmailMessage is provisional, we can change the API in a
 | 
						|
  maintenance release, but we use a trick to remain backward compatible with
 | 
						|
  3.4.0/1.
 | 
						|
 | 
						|
- Issue #21079: Fix email.message.EmailMessage.is_attachment to return the
 | 
						|
  correct result when the header has parameters as well as a value.
 | 
						|
 | 
						|
- Issue #22247: Add NNTPError to nntplib.__all__.
 | 
						|
 | 
						|
- Issue #4180: The warnings registries are now reset when the filters
 | 
						|
  are modified.
 | 
						|
 | 
						|
- Issue #22419: Limit the length of incoming HTTP request in wsgiref server to
 | 
						|
  65536 bytes and send a 414 error code for higher lengths. Patch contributed
 | 
						|
  by Devin Cook.
 | 
						|
 | 
						|
- Lax cookie parsing in http.cookies could be a security issue when combined
 | 
						|
  with non-standard cookie handling in some Web browsers.  Reported by
 | 
						|
  Sergey Bobrov.
 | 
						|
 | 
						|
- Issue #22384: An exception in Tkinter callback no longer crashes the program
 | 
						|
  when it is run with pythonw.exe.
 | 
						|
 | 
						|
- Issue #22168: Prevent turtle AttributeError with non-default Canvas on OS X.
 | 
						|
 | 
						|
- Issue #21147: sqlite3 now raises an exception if the request contains a null
 | 
						|
  character instead of truncate it.  Based on patch by Victor Stinner.
 | 
						|
 | 
						|
- Issue #21951: Fixed a crash in Tkinter on AIX when called Tcl command with
 | 
						|
  empty string or tuple argument.
 | 
						|
 | 
						|
- Issue #21951: Tkinter now most likely raises MemoryError instead of crash
 | 
						|
  if the memory allocation fails.
 | 
						|
 | 
						|
- Issue #22338: Fix a crash in the json module on memory allocation failure.
 | 
						|
 | 
						|
- Issue #22226: First letter no longer is stripped from the "status" key in
 | 
						|
  the result of Treeview.heading().
 | 
						|
 | 
						|
- Issue #19524: Fixed resource leak in the HTTP connection when an invalid
 | 
						|
  response is received.  Patch by Martin Panter.
 | 
						|
 | 
						|
- Issue #22051: turtledemo no longer reloads examples to re-run them.
 | 
						|
  Initialization of variables and gui setup should be done in main(),
 | 
						|
  which is called each time a demo is run, but not on import.
 | 
						|
 | 
						|
- Issue #21933: Turtledemo users can change the code font size with a menu
 | 
						|
  selection or control(command) '-' or '+' or control-mousewheel.
 | 
						|
  Original patch by Lita Cho.
 | 
						|
 | 
						|
- Issue #21597: The separator between the turtledemo text pane and the drawing
 | 
						|
  canvas can now be grabbed and dragged with a mouse.  The code text pane can
 | 
						|
  be widened to easily view or copy the full width of the text.  The canvas
 | 
						|
  can be widened on small screens.  Original patches by Jan Kanis and Lita Cho.
 | 
						|
 | 
						|
- Issue #18132: Turtledemo buttons no longer disappear when the window is
 | 
						|
  shrunk.  Original patches by Jan Kanis and Lita Cho.
 | 
						|
 | 
						|
- Issue #22216: smtplib now resets its state more completely after a quit.  The
 | 
						|
  most obvious consequence of the previous behavior was a STARTTLS failure
 | 
						|
  during a connect/starttls/quit/connect/starttls sequence.
 | 
						|
 | 
						|
- Issue #22185: Fix an occasional RuntimeError in threading.Condition.wait()
 | 
						|
  caused by mutation of the waiters queue without holding the lock.  Patch
 | 
						|
  by Doug Zongker.
 | 
						|
 | 
						|
- Issue #22182: Use e.args to unpack exceptions correctly in
 | 
						|
  distutils.file_util.move_file. Patch by Claudiu Popa.
 | 
						|
 | 
						|
- The webbrowser module now uses subprocess's start_new_session=True rather
 | 
						|
  than a potentially risky preexec_fn=os.setsid call.
 | 
						|
 | 
						|
- Issue #22236: Fixed Tkinter images copying operations in NoDefaultRoot mode.
 | 
						|
 | 
						|
- Issue #22191: Fix warnings.__all__.
 | 
						|
 | 
						|
- Issue #15696: Add a __sizeof__ implementation for mmap objects on Windows.
 | 
						|
 | 
						|
- Issue #22068: Avoided reference loops with Variables and Fonts in Tkinter.
 | 
						|
 | 
						|
- Issue #22165: SimpleHTTPRequestHandler now supports undecodable file names.
 | 
						|
 | 
						|
- Issue #8797: Raise HTTPError on failed Basic Authentication immediately.
 | 
						|
  Initial patch by Sam Bull.
 | 
						|
 | 
						|
- Issue #20729: Restored the use of lazy iterkeys()/itervalues()/iteritems()
 | 
						|
  in the mailbox module.
 | 
						|
 | 
						|
- Issue #21448: Changed FeedParser feed() to avoid O(N**2) behavior when
 | 
						|
  parsing long line.  Original patch by Raymond Hettinger.
 | 
						|
 | 
						|
- Issue #22184: The functools LRU Cache decorator factory now gives an earlier
 | 
						|
  and clearer error message when the user forgets the required parameters.
 | 
						|
 | 
						|
- Issue #17923: glob() patterns ending with a slash no longer match non-dirs on
 | 
						|
  AIX.  Based on patch by Delhallt.
 | 
						|
 | 
						|
- Issue #21121: Don't force 3rd party C extensions to be built with
 | 
						|
  -Werror=declaration-after-statement.
 | 
						|
 | 
						|
- Issue #21975: Fixed crash when using uninitialized sqlite3.Row (in particular
 | 
						|
  when unpickling pickled sqlite3.Row).  sqlite3.Row is now initialized in the
 | 
						|
  __new__() method.
 | 
						|
 | 
						|
- Issue #21580: Now Tkinter correctly handles bytes arguments passed to Tk.
 | 
						|
  In particular this allows to initialize images from binary data.
 | 
						|
 | 
						|
- Issue #17172: Make turtledemo start as active on OS X even when run with
 | 
						|
  subprocess.  Patch by Lita Cho.
 | 
						|
 | 
						|
- Issue #21704: Fix build error for _multiprocessing when semaphores
 | 
						|
  are not available.  Patch by Arfrever Frehtes Taifersar Arahesis.
 | 
						|
 | 
						|
- Fix repr(_socket.socket) on Windows 64-bit: don't fail with OverflowError
 | 
						|
  on closed socket. repr(socket.socket) already works fine.
 | 
						|
 | 
						|
- Issue #16133: The asynchat.async_chat.handle_read() method now ignores
 | 
						|
  BlockingIOError exceptions.
 | 
						|
 | 
						|
- Issue #22044: Fixed premature DECREF in call_tzinfo_method.
 | 
						|
  Patch by Tom Flanagan.
 | 
						|
 | 
						|
- Issue #19884: readline: Disable the meta modifier key if stdout is not
 | 
						|
  a terminal to not write the ANSI sequence "\033[1034h" into stdout. This
 | 
						|
  sequence is used on some terminal (ex: TERM=xterm-256color") to enable
 | 
						|
  support of 8 bit characters.
 | 
						|
 | 
						|
- Issue #21888: plistlib's load() and loads() now work if the fmt parameter is
 | 
						|
  specified.
 | 
						|
 | 
						|
- Issue #21044: tarfile.open() now handles fileobj with an integer 'name'
 | 
						|
  attribute.  Based on patch by Antoine Pietri.
 | 
						|
 | 
						|
- Issue #21867: Prevent turtle crash due to invalid undo buffer size.
 | 
						|
 | 
						|
- Issue #19076: Don't pass the redundant 'file' argument to self.error().
 | 
						|
 | 
						|
- Issue #21942: Fixed source file viewing in pydoc's server mode on Windows.
 | 
						|
 | 
						|
- Issue #11259: asynchat.async_chat().set_terminator() now raises a ValueError
 | 
						|
  if the number of received bytes is negative.
 | 
						|
 | 
						|
- Issue #12523: asynchat.async_chat.push() now raises a TypeError if it doesn't
 | 
						|
  get a bytes string
 | 
						|
 | 
						|
- Issue #21707: Add missing kwonlyargcount argument to
 | 
						|
  ModuleFinder.replace_paths_in_code().
 | 
						|
 | 
						|
- Issue #20639: calling Path.with_suffix('') allows removing the suffix
 | 
						|
  again.  Patch by July Tikhonov.
 | 
						|
 | 
						|
- Issue #21714: Disallow the construction of invalid paths using
 | 
						|
  Path.with_name().  Original patch by Antony Lee.
 | 
						|
 | 
						|
- Issue #21897: Fix a crash with the f_locals attribute with closure
 | 
						|
  variables when frame.clear() has been called.
 | 
						|
 | 
						|
- Issue #21151: Fixed a segfault in the winreg module when ``None`` is passed
 | 
						|
  as a ``REG_BINARY`` value to SetValueEx.  Patch by John Ehresman.
 | 
						|
 | 
						|
- Issue #21090: io.FileIO.readall() does not ignore I/O errors anymore. Before,
 | 
						|
  it ignored I/O errors if at least the first C call read() succeed.
 | 
						|
 | 
						|
- Issue #21781: ssl.RAND_add() now supports strings longer than 2 GB.
 | 
						|
 | 
						|
- Issue #11453: asyncore: emit a ResourceWarning when an unclosed file_wrapper
 | 
						|
  object is destroyed. The destructor now closes the file if needed. The
 | 
						|
  close() method can now be called twice: the second call does nothing.
 | 
						|
 | 
						|
- Issue #21858: Better handling of Python exceptions in the sqlite3 module.
 | 
						|
 | 
						|
- Issue #21476: Make sure the email.parser.BytesParser TextIOWrapper is
 | 
						|
  discarded after parsing, so the input file isn't unexpectedly closed.
 | 
						|
 | 
						|
- Issue #21729: Used the "with" statement in the dbm.dumb module to ensure
 | 
						|
  files closing.  Patch by Claudiu Popa.
 | 
						|
 | 
						|
- Issue #21491: socketserver: Fix a race condition in child processes reaping.
 | 
						|
 | 
						|
- Issue #21832: Require named tuple inputs to be exact strings.
 | 
						|
 | 
						|
- Issue #19145: The times argument for itertools.repeat now handles
 | 
						|
  negative values the same way for keyword arguments as it does for
 | 
						|
  positional arguments.
 | 
						|
 | 
						|
- Issue #21812: turtle.shapetransform did not tranform the turtle on the
 | 
						|
  first call.  (Issue identified and fixed by Lita Cho.)
 | 
						|
 | 
						|
- Issue #21635: The difflib SequenceMatcher.get_matching_blocks() method
 | 
						|
  cache didn't match the actual result.  The former was a list of tuples
 | 
						|
  and the latter was a list of named tuples.
 | 
						|
 | 
						|
- Issue #21722: The distutils "upload" command now exits with a non-zero
 | 
						|
  return code when uploading fails.  Patch by Martin Dengler.
 | 
						|
 | 
						|
- Issue #21723: asyncio.Queue: support any type of number (ex: float) for the
 | 
						|
  maximum size. Patch written by Vajrasky Kok.
 | 
						|
 | 
						|
- Issue #21326: Add a new is_closed() method to asyncio.BaseEventLoop.
 | 
						|
  run_forever() and run_until_complete() methods of asyncio.BaseEventLoop now
 | 
						|
  raise an exception if the event loop was closed.
 | 
						|
 | 
						|
- Issue #21774: Fixed NameError for an incorrect variable reference in the
 | 
						|
  XML Minidom code for creating processing instructions.
 | 
						|
  (Found and fixed by Claudiu Popa.)
 | 
						|
 | 
						|
- Issue #21766: Prevent a security hole in CGIHTTPServer by URL unquoting paths
 | 
						|
  before checking for a CGI script at that path.
 | 
						|
 | 
						|
- Issue #21310: Fixed possible resource leak in failed open().
 | 
						|
 | 
						|
- Issue #21677: Fixed chaining nonnormalized exceptions in io close() methods.
 | 
						|
 | 
						|
- Issue #11709: Fix the pydoc.help function to not fail when sys.stdin is not a
 | 
						|
  valid file.
 | 
						|
 | 
						|
- Issue #13223: Fix pydoc.writedoc so that the HTML documentation for methods
 | 
						|
  that use 'self' in the example code is generated correctly.
 | 
						|
 | 
						|
- Issue #21463: In urllib.request, fix pruning of the FTP cache.
 | 
						|
 | 
						|
- Issue #21618: The subprocess module could fail to close open fds that were
 | 
						|
  inherited by the calling process and already higher than POSIX resource
 | 
						|
  limits would otherwise allow.  On systems with a functioning /proc/self/fd
 | 
						|
  or /dev/fd interface the max is now ignored and all fds are closed.
 | 
						|
 | 
						|
- Issue #21552: Fixed possible integer overflow of too long string lengths in
 | 
						|
  the tkinter module on 64-bit platforms.
 | 
						|
 | 
						|
- Issue #14315: The zipfile module now ignores extra fields in the central
 | 
						|
  directory that are too short to be parsed instead of letting a struct.unpack
 | 
						|
  error bubble up as this "bad data" appears in many real world zip files in
 | 
						|
  the wild and is ignored by other zip tools.
 | 
						|
 | 
						|
- Issue #21402: tkinter.ttk now works when default root window is not set.
 | 
						|
 | 
						|
- Issue #10203: sqlite3.Row now truly supports sequence protocol.  In particular
 | 
						|
  it supports reverse() and negative indices.  Original patch by Claudiu Popa.
 | 
						|
 | 
						|
- Issue #18807: If copying (no symlinks) specified for a venv, then the python
 | 
						|
  interpreter aliases (python, python3) are now created by copying rather than
 | 
						|
  symlinking.
 | 
						|
 | 
						|
- Issue #14710: pkgutil.get_loader() no longer raises an exception when None is
 | 
						|
  found in sys.modules.
 | 
						|
 | 
						|
- Issue #14710: pkgutil.find_loader() no longer raises an exception when a
 | 
						|
  module doesn't exist.
 | 
						|
 | 
						|
- Issue #21481: Argparse equality and inequality tests now return
 | 
						|
  NotImplemented when comparing to an unknown type.
 | 
						|
 | 
						|
- Issue #8743: Fix interoperability between set objects and the
 | 
						|
  collections.Set() abstract base class.
 | 
						|
 | 
						|
- Issue #13355: random.triangular() no longer fails with a ZeroDivisionError
 | 
						|
  when low equals high.
 | 
						|
 | 
						|
- Issue #21538: The plistlib module now supports loading of binary plist files
 | 
						|
  when reference or offset size is not a power of two.
 | 
						|
 | 
						|
- Issue #21801: Validate that __signature__ is None or an instance of Signature.
 | 
						|
 | 
						|
- Issue #21923: Prevent AttributeError in distutils.sysconfig.customize_compiler
 | 
						|
  due to possible uninitialized _config_vars.
 | 
						|
 | 
						|
- Issue #21323: Fix http.server to again handle scripts in CGI subdirectories,
 | 
						|
  broken by the fix for security issue #19435.  Patch by Zach Byrne.
 | 
						|
 | 
						|
Extension Modules
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #22176: Update the ctypes module's libffi to v3.1.  This release
 | 
						|
  adds support for the Linux AArch64 and POWERPC ELF ABIv2 little endian
 | 
						|
  architectures.
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #15661: python.org OS X installers are now distributed as signed
 | 
						|
  installer packages compatible with the Gatekeeper security feature.
 | 
						|
 | 
						|
- Issue #21958: Define HAVE_ROUND when building with Visual Studio 2013 and
 | 
						|
  above.  Patch by Zachary Turner.
 | 
						|
 | 
						|
- Issue #15759: "make suspicious", "make linkcheck" and "make doctest" in Doc/
 | 
						|
  now display special message when and only when there are failures.
 | 
						|
 | 
						|
- Issue #17095: Fix Modules/Setup *shared* support.
 | 
						|
 | 
						|
- Issue #21811: Anticipated fixes to support OS X versions > 10.9.
 | 
						|
 | 
						|
- Issue #21166: Prevent possible segfaults and other random failures of
 | 
						|
  python --generate-posix-vars in pybuilddir.txt build target.
 | 
						|
 | 
						|
IDLE
 | 
						|
----
 | 
						|
 | 
						|
- Issue #17390: Adjust Editor window title; remove 'Python',
 | 
						|
  move version to end.
 | 
						|
 | 
						|
- Issue #14105: Idle debugger breakpoints no longer disappear
 | 
						|
  when inseting or deleting lines.
 | 
						|
 | 
						|
- Issue #17172: Turtledemo can now be run from Idle.
 | 
						|
  Currently, the entry is on the Help menu, but it may move to Run.
 | 
						|
  Patch by Ramchandra Apt and Lita Cho.
 | 
						|
 | 
						|
- Issue #21765: Add support for non-ascii identifiers to HyperParser.
 | 
						|
 | 
						|
- Issue #21940: Add unittest for WidgetRedirector. Initial patch by Saimadhav
 | 
						|
  Heblikar.
 | 
						|
 | 
						|
- Issue #18592: Add unittest for SearchDialogBase. Patch by Phil Webster.
 | 
						|
 | 
						|
- Issue #21694: Add unittest for ParenMatch. Patch by Saimadhav Heblikar.
 | 
						|
 | 
						|
- Issue #21686: add unittest for HyperParser. Original patch by Saimadhav
 | 
						|
  Heblikar.
 | 
						|
 | 
						|
- Issue #12387: Add missing upper(lower)case versions of default Windows key
 | 
						|
  bindings for Idle so Caps Lock does not disable them. Patch by Roger Serwy.
 | 
						|
 | 
						|
- Issue #21695: Closing a Find-in-files output window while the search is
 | 
						|
  still in progress no longer closes Idle.
 | 
						|
 | 
						|
- Issue #18910: Add unittest for textView. Patch by Phil Webster.
 | 
						|
 | 
						|
- Issue #18292: Add unittest for AutoExpand. Patch by Saihadhav Heblikar.
 | 
						|
 | 
						|
- Issue #18409: Add unittest for AutoComplete. Patch by Phil Webster.
 | 
						|
 | 
						|
Tests
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #22166: With the assistance of a new internal _codecs._forget_codec
 | 
						|
  helping function, test_codecs now clears the encoding caches to avoid the
 | 
						|
  appearance of a reference leak
 | 
						|
 | 
						|
- Issue #22236: Tkinter tests now don't reuse default root window.  New root
 | 
						|
  window is created for every test class.
 | 
						|
 | 
						|
- Issue #20746: Fix test_pdb to run in refleak mode (-R).  Patch by Xavier
 | 
						|
  de Gaye.
 | 
						|
 | 
						|
- Issue #22060: test_ctypes has been somewhat cleaned up and simplified; it
 | 
						|
  now uses unittest test discovery to find its tests.
 | 
						|
 | 
						|
- Issue #22104: regrtest.py no longer holds a reference to the suite of tests
 | 
						|
  loaded from test modules that don't define test_main().
 | 
						|
 | 
						|
- Issue #22002: Added ``load_package_tests`` function to test.support and used
 | 
						|
  it to implement/augment test discovery in test_asyncio, test_email,
 | 
						|
  test_importlib, test_json, and test_tools.
 | 
						|
 | 
						|
- Issue #21976: Fix test_ssl to accept LibreSSL version strings.  Thanks
 | 
						|
  to William Orr.
 | 
						|
 | 
						|
- Issue #21918: Converted test_tools from a module to a package containing
 | 
						|
  separate test files for each tested script.
 | 
						|
 | 
						|
- Issue #20155: Changed HTTP method names in failing tests in test_httpservers
 | 
						|
  so that packet filtering software (specifically Windows Base Filtering Engine)
 | 
						|
  does not interfere with the transaction semantics expected by the tests.
 | 
						|
 | 
						|
- Issue #19493: Refactored the ctypes test package to skip tests explicitly
 | 
						|
  rather than silently.
 | 
						|
 | 
						|
- Issue #18492: All resources are now allowed when tests are not run by
 | 
						|
  regrtest.py.
 | 
						|
 | 
						|
- Issue #21634: Fix pystone micro-benchmark: use floor division instead of true
 | 
						|
  division to benchmark integers instead of floating point numbers. Set pystone
 | 
						|
  version to 1.2. Patch written by Lennart Regebro.
 | 
						|
 | 
						|
- Issue #21605: Added tests for Tkinter images.
 | 
						|
 | 
						|
- Issue #21493: Added test for ntpath.expanduser().  Original patch by
 | 
						|
  Claudiu Popa.
 | 
						|
 | 
						|
- Issue #19925: Added tests for the spwd module. Original patch by Vajrasky Kok.
 | 
						|
 | 
						|
- Issue #21522: Added Tkinter tests for Listbox.itemconfigure(),
 | 
						|
  PanedWindow.paneconfigure(), and Menu.entryconfigure().
 | 
						|
 | 
						|
Documentation
 | 
						|
-------------
 | 
						|
 | 
						|
- Issue #21777: The binary sequence methods on bytes and bytearray are now
 | 
						|
  documented explicitly, rather than assuming users will be able to derive
 | 
						|
  the expected behaviour from the behaviour of the corresponding str methods.
 | 
						|
 | 
						|
Windows
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #21671, #22160, CVE-2014-0224: The bundled version of OpenSSL has been
 | 
						|
  updated to 1.0.1i.
 | 
						|
 | 
						|
- Issue #10747: Use versioned labels in the Windows start menu.
 | 
						|
  Patch by Olive Kilburn.
 | 
						|
 | 
						|
Tools/Demos
 | 
						|
-----------
 | 
						|
 | 
						|
- Issue #22201: Command-line interface of the zipfile module now correctly
 | 
						|
  extracts ZIP files with directory entries.  Patch by Ryan Wilson.
 | 
						|
 | 
						|
- Issue #21906: Make Tools/scripts/md5sum.py work in Python 3.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #21629: Fix Argument Clinic's "--converters" feature.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.4.1?
 | 
						|
===========================
 | 
						|
 | 
						|
Release date: 2014-05-18
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #21418: Fix a crash in the builtin function super() when called without
 | 
						|
  argument and without current frame (ex: embedded Python).
 | 
						|
 | 
						|
- Issue #21425: Fix flushing of standard streams in the interactive
 | 
						|
  interpreter.
 | 
						|
 | 
						|
- Issue #21435: In rare cases, when running finalizers on objects in cyclic
 | 
						|
  trash a bad pointer dereference could occur due to a subtle flaw in
 | 
						|
  internal iteration logic.
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #10744: Fix PEP 3118 format strings on ctypes objects with a nontrivial
 | 
						|
  shape.
 | 
						|
 | 
						|
- Issue #20998: Fixed re.fullmatch() of repeated single character pattern
 | 
						|
  with ignore case.  Original patch by Matthew Barnett.
 | 
						|
 | 
						|
- Issue #21075: fileinput.FileInput now reads bytes from standard stream if
 | 
						|
  binary mode is specified.  Patch by Sam Kimbrel.
 | 
						|
 | 
						|
- Issue #21396: Fix TextIOWrapper(..., write_through=True) to not force a
 | 
						|
  flush() on the underlying binary stream.  Patch by akira.
 | 
						|
 | 
						|
- Issue #21470: Do a better job seeding the random number generator by
 | 
						|
  using enough bytes to span the full state space of the Mersenne Twister.
 | 
						|
 | 
						|
- Issue #21398: Fix an unicode error in the pydoc pager when the documentation
 | 
						|
  contains characters not encodable to the stdout encoding.
 | 
						|
 | 
						|
Tests
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #17756: Fix test_code test when run from the installed location.
 | 
						|
 | 
						|
- Issue #17752: Fix distutils tests when run from the installed location.
 | 
						|
 | 
						|
IDLE
 | 
						|
----
 | 
						|
 | 
						|
- Issue #18104: Add idlelib/idle_test/htest.py with a few sample tests to begin
 | 
						|
  consolidating and improving human-validated tests of Idle. Change other files
 | 
						|
  as needed to work with htest.  Running the module as __main__ runs all tests.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.4.1rc1?
 | 
						|
==============================
 | 
						|
 | 
						|
Release date: 2014-05-05
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #21274: Define PATH_MAX for GNU/Hurd in Python/pythonrun.c.
 | 
						|
 | 
						|
- Issue #21209: Fix sending tuples to custom generator objects with the yield
 | 
						|
  from syntax.
 | 
						|
 | 
						|
- Issue #21134: Fix segfault when str is called on an uninitialized
 | 
						|
  UnicodeEncodeError, UnicodeDecodeError, or UnicodeTranslateError object.
 | 
						|
 | 
						|
- Issue #19537: Fix PyUnicode_DATA() alignment under m68k.  Patch by
 | 
						|
  Andreas Schwab.
 | 
						|
 | 
						|
- Issue #20929: Add a type cast to avoid shifting a negative number.
 | 
						|
 | 
						|
- Issue #20731: Properly position in source code files even if they
 | 
						|
  are opened in text mode. Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #20637: Key-sharing now also works for instance dictionaries of
 | 
						|
  subclasses.  Patch by Peter Ingebretson.
 | 
						|
 | 
						|
- Issue #12546: Allow \x00 to be used as a fill character when using str, int,
 | 
						|
  float, and complex __format__ methods.
 | 
						|
 | 
						|
- Issue #13598: Modify string.Formatter to support auto-numbering of
 | 
						|
  replacement fields. It now matches the behavior of str.format() in
 | 
						|
  this regard. Patches by Phil Elson and Ramchandra Apte.
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #21088: Bugfix for curses.window.addch() regression in 3.4.0.
 | 
						|
  In porting to Argument Clinic, the first two arguments were reversed.
 | 
						|
 | 
						|
- Issue #21469: Reduced the risk of false positives in robotparser by
 | 
						|
  checking to make sure that robots.txt has been read or does not exist
 | 
						|
  prior to returning True in can_fetch().
 | 
						|
 | 
						|
- Issue #21321: itertools.islice() now releases the reference to the source
 | 
						|
  iterator when the slice is exhausted.  Patch by Anton Afanasyev.
 | 
						|
 | 
						|
- Issue #9815: assertRaises now tries to clear references to local variables
 | 
						|
  in the exception's traceback.
 | 
						|
 | 
						|
- Issue #13204: Calling sys.flags.__new__ would crash the interpreter,
 | 
						|
  now it raises a TypeError.
 | 
						|
 | 
						|
- Issue #19385: Make operations on a closed dbm.dumb database always raise the
 | 
						|
  same exception.
 | 
						|
 | 
						|
- Issue #21207: Detect when the os.urandom cached fd has been closed or
 | 
						|
  replaced, and open it anew.
 | 
						|
 | 
						|
- Issue #21291: subprocess's Popen.wait() is now thread safe so that
 | 
						|
  multiple threads may be calling wait() or poll() on a Popen instance
 | 
						|
  at the same time without losing the Popen.returncode value.
 | 
						|
 | 
						|
- Issue #21127: Path objects can now be instantiated from str subclass
 | 
						|
  instances (such as ``numpy.str_``).
 | 
						|
 | 
						|
- Issue #15002: urllib.response object to use _TemporaryFileWrapper (and
 | 
						|
  _TemporaryFileCloser) facility. Provides a better way to handle file
 | 
						|
  descriptor close. Patch contributed by Christian Theune.
 | 
						|
 | 
						|
- Issue #12220: mindom now raises a custom ValueError indicating it doesn't
 | 
						|
  support spaces in URIs instead of letting a 'split' ValueError bubble up.
 | 
						|
 | 
						|
- Issue #21239: patch.stopall() didn't work deterministically when the same
 | 
						|
  name was patched more than once.
 | 
						|
 | 
						|
- Issue #21222: Passing name keyword argument to mock.create_autospec now
 | 
						|
  works.
 | 
						|
 | 
						|
- Issue #21197: Add lib64 -> lib symlink in venvs on 64-bit non-OS X POSIX.
 | 
						|
 | 
						|
- Issue #17498: Some SMTP servers disconnect after certain errors, violating
 | 
						|
  strict RFC conformance.  Instead of losing the error code when we issue the
 | 
						|
  subsequent RSET, smtplib now returns the error code and defers raising the
 | 
						|
  SMTPServerDisconnected error until the next command is issued.
 | 
						|
 | 
						|
- Issue #17826: setting an iterable side_effect on a mock function created by
 | 
						|
  create_autospec now works. Patch by Kushal Das.
 | 
						|
 | 
						|
- Issue #7776: Fix ``Host:`` header and reconnection when using
 | 
						|
  http.client.HTTPConnection.set_tunnel(). Patch by Nikolaus Rath.
 | 
						|
 | 
						|
- Issue #20968: unittest.mock.MagicMock now supports division.
 | 
						|
  Patch by Johannes Baiter.
 | 
						|
 | 
						|
- Fix arbitrary memory access in JSONDecoder.raw_decode with a negative second
 | 
						|
  parameter. Bug reported by Guido Vranken.
 | 
						|
 | 
						|
- Issue #21169: getpass now handles non-ascii characters that the
 | 
						|
  input stream encoding cannot encode by re-encoding using the
 | 
						|
  replace error handler.
 | 
						|
 | 
						|
- Issue #21171: Fixed undocumented filter API of the rot13 codec.
 | 
						|
  Patch by Berker Peksag.
 | 
						|
 | 
						|
- Issue #21172: isinstance check relaxed from dict to collections.Mapping.
 | 
						|
 | 
						|
- Issue #21155: asyncio.EventLoop.create_unix_server() now raises a ValueError
 | 
						|
  if path and sock are specified at the same time.
 | 
						|
 | 
						|
- Issue #21149: Improved thread-safety in logging cleanup during interpreter
 | 
						|
  shutdown. Thanks to Devin Jeanpierre for the patch.
 | 
						|
 | 
						|
- Issue #20145: `assertRaisesRegex` and `assertWarnsRegex` now raise a
 | 
						|
  TypeError if the second argument is not a string or compiled regex.
 | 
						|
 | 
						|
- Issue #21058: Fix a leak of file descriptor in
 | 
						|
  :func:`tempfile.NamedTemporaryFile`, close the file descriptor if
 | 
						|
  :func:`io.open` fails
 | 
						|
 | 
						|
- Issue #21200: Return None from pkgutil.get_loader() when __spec__ is missing.
 | 
						|
 | 
						|
- Issue #21013: Enhance ssl.create_default_context() when used for server side
 | 
						|
  sockets to provide better security by default.
 | 
						|
 | 
						|
- Issue #20633: Replace relative import by absolute import.
 | 
						|
 | 
						|
- Issue #20980: Stop wrapping exception when using ThreadPool.
 | 
						|
 | 
						|
- Issue #21082: In os.makedirs, do not set the process-wide umask. Note this
 | 
						|
  changes behavior of makedirs when exist_ok=True.
 | 
						|
 | 
						|
- Issue #20990: Fix issues found by pyflakes for multiprocessing.
 | 
						|
 | 
						|
- Issue #21015: SSL contexts will now automatically select an elliptic
 | 
						|
  curve for ECDH key exchange on OpenSSL 1.0.2 and later, and otherwise
 | 
						|
  default to "prime256v1".
 | 
						|
 | 
						|
- Issue #20995: Enhance default ciphers used by the ssl module to enable
 | 
						|
  better security an prioritize perfect forward secrecy.
 | 
						|
 | 
						|
- Issue #20884: Don't assume that __file__ is defined on importlib.__init__.
 | 
						|
 | 
						|
- Issue #21499: Ignore __builtins__ in several test_importlib.test_api tests.
 | 
						|
 | 
						|
- Issue #20879: Delay the initialization of encoding and decoding tables for
 | 
						|
  base32, ascii85 and base85 codecs in the base64 module, and delay the
 | 
						|
  initialization of the unquote_to_bytes() table of the urllib.parse module, to
 | 
						|
  not waste memory if these modules are not used.
 | 
						|
 | 
						|
- Issue #19157: Include the broadcast address in the usuable hosts for IPv6
 | 
						|
  in ipaddress.
 | 
						|
 | 
						|
- Issue #11599: When an external command (e.g. compiler) fails, distutils now
 | 
						|
  prints out the whole command line (instead of just the command name) if the
 | 
						|
  environment variable DISTUTILS_DEBUG is set.
 | 
						|
 | 
						|
- Issue #4931: distutils should not produce unhelpful "error: None" messages
 | 
						|
  anymore.  distutils.util.grok_environment_error is kept but doc-deprecated.
 | 
						|
 | 
						|
- Issue #20875: Prevent possible gzip "'read' is not defined" NameError.
 | 
						|
  Patch by Claudiu Popa.
 | 
						|
 | 
						|
- Issue #11558: ``email.message.Message.attach`` now returns a more
 | 
						|
  useful error message if ``attach`` is called on a message for which
 | 
						|
  ``is_multipart`` is False.
 | 
						|
 | 
						|
- Issue #20283: RE pattern methods now accept the string keyword parameters
 | 
						|
  as documented.  The pattern and source keyword parameters are left as
 | 
						|
  deprecated aliases.
 | 
						|
 | 
						|
- Issue #20778: Fix modulefinder to work with bytecode-only modules.
 | 
						|
 | 
						|
- Issue #20791: copy.copy() now doesn't make a copy when the input is
 | 
						|
  a bytes object.  Initial patch by Peter Otten.
 | 
						|
 | 
						|
- Issue #19748: On AIX, time.mktime() now raises an OverflowError for year
 | 
						|
  outsize range [1902; 2037].
 | 
						|
 | 
						|
- Issue #20816: Fix inspect.getcallargs() to raise correct TypeError for
 | 
						|
  missing keyword-only arguments. Patch by Jeremiah Lowin.
 | 
						|
 | 
						|
- Issue #20817: Fix inspect.getcallargs() to fail correctly if more
 | 
						|
  than 3 arguments are missing. Patch by Jeremiah Lowin.
 | 
						|
 | 
						|
- Issue #6676: Ensure a meaningful exception is raised when attempting
 | 
						|
  to parse more than one XML document per pyexpat xmlparser instance.
 | 
						|
  (Original patches by Hirokazu Yamamoto and Amaury Forgeot d'Arc, with
 | 
						|
  suggested wording by David Gutteridge)
 | 
						|
 | 
						|
- Issue #21117: Fix inspect.signature to better support functools.partial.
 | 
						|
  Due to the specifics of functools.partial implementation,
 | 
						|
  positional-or-keyword arguments passed as keyword arguments become
 | 
						|
  keyword-only.
 | 
						|
 | 
						|
- Issue #21209: Fix asyncio.tasks.CoroWrapper to workaround a bug
 | 
						|
  in yield-from implementation in CPythons prior to 3.4.1.
 | 
						|
 | 
						|
- asyncio: Add gi_{frame,running,code} properties to CoroWrapper
 | 
						|
  (upstream issue #163).
 | 
						|
 | 
						|
- Issue #21311: Avoid exception in _osx_support with non-standard compiler
 | 
						|
  configurations.  Patch by John Szakmeister.
 | 
						|
 | 
						|
- Issue #11571: Ensure that the turtle window becomes the topmost window
 | 
						|
  when launched on OS X.
 | 
						|
 | 
						|
Extension Modules
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #21276: posixmodule: Don't define USE_XATTRS on KFreeBSD and the Hurd.
 | 
						|
 | 
						|
- Issue #21226: Set up modules properly in PyImport_ExecCodeModuleObject
 | 
						|
  (and friends).
 | 
						|
 | 
						|
IDLE
 | 
						|
----
 | 
						|
 | 
						|
- Issue #21139: Change default paragraph width to 72, the PEP 8 recommendation.
 | 
						|
 | 
						|
- Issue #21284: Paragraph reformat test passes after user changes reformat width.
 | 
						|
 | 
						|
- Issue #17654: Ensure IDLE menus are customized properly on OS X for
 | 
						|
  non-framework builds and for all variants of Tk.
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- The Windows build now includes OpenSSL 1.0.1g
 | 
						|
 | 
						|
- Issue #21285: Refactor and fix curses configure check to always search
 | 
						|
  in a ncursesw directory.
 | 
						|
 | 
						|
- Issue #15234: For BerkelyDB and Sqlite, only add the found library and
 | 
						|
  include directories if they aren't already being searched. This avoids
 | 
						|
  an explicit runtime library dependency.
 | 
						|
 | 
						|
- Issue #20644: OS X installer build support for documentation build changes
 | 
						|
  in 3.4.1: assume externally supplied sphinx-build is available in /usr/bin.
 | 
						|
 | 
						|
C API
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #20942: PyImport_ImportFrozenModuleObject() no longer sets __file__ to
 | 
						|
  match what importlib does; this affects _frozen_importlib as well as any
 | 
						|
  module loaded using imp.init_frozen().
 | 
						|
 | 
						|
Documentation
 | 
						|
-------------
 | 
						|
 | 
						|
- Issue #17386: Expanded functionality of the ``Doc/make.bat`` script to make
 | 
						|
  it much more comparable to ``Doc/Makefile``.
 | 
						|
 | 
						|
- Issue #21043: Remove the recommendation for specific CA organizations and to
 | 
						|
  mention the ability to load the OS certificates.
 | 
						|
 | 
						|
- Issue #20765: Add missing documentation for PurePath.with_name() and
 | 
						|
  PurePath.with_suffix().
 | 
						|
 | 
						|
- Issue #19407: New package installation and distribution guides based on
 | 
						|
  the Python Packaging Authority tools. Existing guides have been retained
 | 
						|
  as legacy links from the distutils docs, as they still contain some
 | 
						|
  required reference material for tool developers that isn't recorded
 | 
						|
  anywhere else.
 | 
						|
 | 
						|
- Issue #19697: Document cases where __main__.__spec__ is None.
 | 
						|
 | 
						|
Tests
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #18604: Consolidated checks for GUI availability.  All platforms now
 | 
						|
  at least check whether Tk can be instantiated when the GUI resource is
 | 
						|
  requested.
 | 
						|
 | 
						|
- Issue #21275: Fix a socket test on KFreeBSD.
 | 
						|
 | 
						|
- Issue #21223: Pass test_site/test_startup_imports when some of the extensions
 | 
						|
  are built as builtins.
 | 
						|
 | 
						|
- Issue #20635: Added tests for Tk geometry managers.
 | 
						|
 | 
						|
- Add test case for freeze.
 | 
						|
 | 
						|
- Issue #20743: Fix a reference leak in test_tcl.
 | 
						|
 | 
						|
- Issue #21097: Move test_namespace_pkgs into test_importlib.
 | 
						|
 | 
						|
- Issue #20939: Avoid various network test failures due to new
 | 
						|
  redirect of http://www.python.org/ to https://www.python.org:
 | 
						|
  use http://www.example.com instead.
 | 
						|
 | 
						|
- Issue #20668: asyncio tests no longer rely on tests.txt file.
 | 
						|
  (Patch by Vajrasky Kok)
 | 
						|
 | 
						|
- Issue #21093: Prevent failures of ctypes test_macholib on OS X if a
 | 
						|
  copy of libz exists in $HOME/lib or /usr/local/lib.
 | 
						|
 | 
						|
Tools/Demos
 | 
						|
-----------
 | 
						|
 | 
						|
- Add support for ``yield from`` to 2to3.
 | 
						|
 | 
						|
- Add support for the PEP 465 matrix multiplication operator to 2to3.
 | 
						|
 | 
						|
- Issue #16047: Fix module exception list and __file__ handling in freeze.
 | 
						|
  Patch by Meador Inge.
 | 
						|
 | 
						|
- Issue #11824: Consider ABI tags in freeze. Patch by Meador Inge.
 | 
						|
 | 
						|
- Issue #20535: PYTHONWARNING no longer affects the run_tests.py script.
 | 
						|
  Patch by Arfrever Frehtes Taifersar Arahesis.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.4.0?
 | 
						|
===========================
 | 
						|
 | 
						|
Release date: 2014-03-16
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #20939: Fix test_geturl failure in test_urllibnet due to
 | 
						|
  new redirect of http://www.python.org/ to https://www.python.org.
 | 
						|
 | 
						|
Documentation
 | 
						|
-------------
 | 
						|
 | 
						|
- Merge in all documentation changes since branching 3.4.0rc1.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.4.0 release candidate 3?
 | 
						|
===============================================
 | 
						|
 | 
						|
Release date: 2014-03-09
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #20786: Fix signatures for dict.__delitem__ and
 | 
						|
  property.__delete__ builtins.
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #20839: Don't trigger a DeprecationWarning in the still supported
 | 
						|
  pkgutil.get_loader() API when __loader__ isn't set on a module (nor
 | 
						|
  when pkgutil.find_loader() is called directly).
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #14512: Launch pydoc -b instead of pydocgui.pyw on Windows.
 | 
						|
 | 
						|
- Issue #20748: Uninstalling pip does not leave behind the pyc of
 | 
						|
  the uninstaller anymore.
 | 
						|
 | 
						|
- Issue #20568: The Windows installer now installs the unversioned ``pip``
 | 
						|
  command in addition to the versioned ``pip3`` and ``pip3.4`` commands.
 | 
						|
 | 
						|
- Issue #20757: The ensurepip helper for the Windows uninstaller now skips
 | 
						|
  uninstalling pip (rather than failing) if the user has updated pip to a
 | 
						|
  different version from the one bundled with ensurepip.
 | 
						|
 | 
						|
- Issue #20465: Update OS X and Windows installer builds to use
 | 
						|
  SQLite 3.8.3.1.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.4.0 release candidate 2?
 | 
						|
===============================================
 | 
						|
 | 
						|
Release date: 2014-02-23
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #20625: Parameter names in __annotations__ were not mangled properly.
 | 
						|
  Discovered by Jonas Wielicki, patch by Yury Selivanov.
 | 
						|
 | 
						|
- Issue #20261: In pickle, lookup __getnewargs__ and __getnewargs_ex__ on the
 | 
						|
  type of the object.
 | 
						|
 | 
						|
- Issue #20619: Give the AST nodes of keyword-only arguments a column and line
 | 
						|
  number.
 | 
						|
 | 
						|
- Issue #20526: Revert changes of issue #19466 which introduces a regression:
 | 
						|
  don't clear anymore the state of Python threads early during the Python
 | 
						|
  shutdown.
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #20710: The pydoc summary line no longer displays the "self" parameter
 | 
						|
  for bound methods.
 | 
						|
 | 
						|
- Issue #20566: Change asyncio.as_completed() to use a Queue, to
 | 
						|
  avoid O(N**2) behavior.
 | 
						|
 | 
						|
- Issue #20704: Implement new debug API in asyncio. Add new methods
 | 
						|
  BaseEventLoop.set_debug() and BaseEventLoop.get_debug().
 | 
						|
  Add support for setting 'asyncio.tasks._DEBUG' variable with
 | 
						|
  'PYTHONASYNCIODEBUG' environment variable.
 | 
						|
 | 
						|
- asyncio: Refactoring and fixes: BaseEventLoop.sock_connect() raises an
 | 
						|
  error if the address is not resolved; use __slots__ in Handle and
 | 
						|
  TimerHandle; as_completed() and wait() raise TypeError if the passed
 | 
						|
  list of Futures is a single Future; call_soon() and other 'call_*()'
 | 
						|
  functions raise TypeError if the passed callback is a coroutine
 | 
						|
  function; _ProactorBasePipeTransport uses _FlowControlMixin;
 | 
						|
  WriteTransport.set_write_buffer_size() calls _maybe_pause_protocol()
 | 
						|
  to consider pausing receiving if the watermark limits have changed;
 | 
						|
  fix _check_resolved_address() for IPv6 address; and other minor
 | 
						|
  improvements, along with multiple documentation updates.
 | 
						|
 | 
						|
- Issue #20684: Fix inspect.getfullargspec() to not to follow __wrapped__
 | 
						|
  chains. Make its behaviour consistent with bound methods first argument.
 | 
						|
  Patch by Nick Coghlan and Yury Selivanov.
 | 
						|
 | 
						|
- Issue #20681: Add new error handling API in asyncio. New APIs:
 | 
						|
  loop.set_exception_handler(), loop.default_exception_handler(), and
 | 
						|
  loop.call_exception_handler().
 | 
						|
 | 
						|
- Issue #20673: Implement support for UNIX Domain Sockets in asyncio.
 | 
						|
  New APIs: loop.create_unix_connection(), loop.create_unix_server(),
 | 
						|
  streams.open_unix_connection(), and streams.start_unix_server().
 | 
						|
 | 
						|
- Issue #20616: Add a format() method to tracemalloc.Traceback.
 | 
						|
 | 
						|
- Issue #19744: the ensurepip installation step now just prints a warning to
 | 
						|
  stderr rather than failing outright if SSL/TLS is unavailable. This allows
 | 
						|
  local installation of POSIX builds without SSL/TLS support.
 | 
						|
 | 
						|
- Issue #20594: Avoid name clash with the libc function posix_close.
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #20641: Run MSI custom actions (pip installation, pyc compilation)
 | 
						|
  with the NoImpersonate flag, to support elevated execution (UAC).
 | 
						|
 | 
						|
- Issue #20221: Removed conflicting (or circular) hypot definition when
 | 
						|
  compiled with VS 2010 or above.  Initial patch by Tabrez Mohammed.
 | 
						|
 | 
						|
- Issue #20609: Restored the ability to build 64-bit Windows binaries on
 | 
						|
  32-bit Windows, which was broken by the change in issue #19788.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.4.0 release candidate 1?
 | 
						|
===============================================
 | 
						|
 | 
						|
Release date: 2014-02-10
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #19255: The builtins module is restored to initial value before
 | 
						|
  cleaning other modules.  The sys and builtins modules are cleaned last.
 | 
						|
 | 
						|
- Issue #20588: Make Python-ast.c C89 compliant.
 | 
						|
 | 
						|
- Issue #20437: Fixed 22 potential bugs when deleting objects references.
 | 
						|
 | 
						|
- Issue #20500: Displaying an exception at interpreter shutdown no longer
 | 
						|
  risks triggering an assertion failure in PyObject_Str.
 | 
						|
 | 
						|
- Issue #20538: UTF-7 incremental decoder produced inconsistent string when
 | 
						|
  input was truncated in BASE64 section.
 | 
						|
 | 
						|
- Issue #20404: io.TextIOWrapper (and hence the open() builtin) now uses the
 | 
						|
  internal codec marking system added for issue #19619 to throw LookupError
 | 
						|
  for known non-text encodings at stream construction time. The existing
 | 
						|
  output type checks remain in place to deal with unmarked third party
 | 
						|
  codecs.
 | 
						|
 | 
						|
- Issue #17162: Add PyType_GetSlot.
 | 
						|
 | 
						|
- Issue #20162: Fix an alignment issue in the siphash24() hash function which
 | 
						|
  caused a crash on PowerPC 64-bit (ppc64).
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #20530: The signatures for slot builtins have been updated
 | 
						|
  to reflect the fact that they only accept positional-only arguments.
 | 
						|
 | 
						|
- Issue #20517: Functions in the os module that accept two filenames
 | 
						|
  now register both filenames in the exception on failure.
 | 
						|
 | 
						|
- Issue #20563: The ipaddress module API is now considered stable.
 | 
						|
 | 
						|
- Issue #14983: email.generator now always adds a line end after each MIME
 | 
						|
  boundary marker, instead of doing so only when there is an epilogue.  This
 | 
						|
  fixes an RFC compliance bug and solves an issue with signed MIME parts.
 | 
						|
 | 
						|
- Issue #20540: Fix a performance regression (vs. Python 3.2) when layering
 | 
						|
  a multiprocessing Connection over a TCP socket.  For small payloads, Nagle's
 | 
						|
  algorithm would introduce idle delays before the entire transmission of a
 | 
						|
  message.
 | 
						|
 | 
						|
- Issue #16983: the new email header parsing code will now decode encoded words
 | 
						|
  that are (incorrectly) surrounded by quotes, and register a defect.
 | 
						|
 | 
						|
- Issue #19772: email.generator no longer mutates the message object when
 | 
						|
  doing a down-transform from 8bit to 7bit CTEs.
 | 
						|
 | 
						|
- Issue #20536: the statistics module now correctly handle Decimal instances
 | 
						|
  with positive exponents
 | 
						|
 | 
						|
- Issue #18805: the netmask/hostmask parsing in ipaddress now more reliably
 | 
						|
  filters out illegal values and correctly allows any valid prefix length.
 | 
						|
 | 
						|
- Issue #20481: For at least Python 3.4, the statistics module will require
 | 
						|
  that all inputs for a single operation be of a single consistent type, or
 | 
						|
  else a mixed of ints and a single other consistent type. This avoids
 | 
						|
  some interoperability issues that arose with the previous approach of
 | 
						|
  coercing to a suitable common type.
 | 
						|
 | 
						|
- Issue #20478: the statistics module now treats collections.Counter inputs
 | 
						|
  like any other iterable.
 | 
						|
 | 
						|
- Issue #17369: get_filename was raising an exception if the filename
 | 
						|
  parameter's RFC2231 encoding was broken in certain ways.  This was
 | 
						|
  a regression relative to python2.
 | 
						|
 | 
						|
- Issue #20013: Some imap servers disconnect if the current mailbox is
 | 
						|
  deleted, and imaplib did not handle that case gracefully.  Now it
 | 
						|
  handles the 'bye' correctly.
 | 
						|
 | 
						|
- Issue #20531: Revert 3.4 version of fix for #19063, and apply the 3.3
 | 
						|
  version.  That is, do *not* raise an error if unicode is passed to
 | 
						|
  email.message.Message.set_payload.
 | 
						|
 | 
						|
- Issue #20476: If a non-compat32 policy is used with any of the email parsers,
 | 
						|
  EmailMessage is now used as the factory class.  The factory class should
 | 
						|
  really come from the policy; that will get fixed in 3.5.
 | 
						|
 | 
						|
- Issue #19920: TarFile.list() no longer fails when outputs a listing
 | 
						|
  containing non-encodable characters.  Based on patch by Vajrasky Kok.
 | 
						|
 | 
						|
- Issue #20515: Fix NULL pointer dereference introduced by issue #20368.
 | 
						|
 | 
						|
- Issue #19186: Restore namespacing of expat symbols inside the pyexpat module.
 | 
						|
 | 
						|
- Issue #20053: ensurepip (and hence venv) are no longer affected by the
 | 
						|
  settings in the default pip configuration file.
 | 
						|
 | 
						|
- Issue #20426: When passing the re.DEBUG flag, re.compile() displays the
 | 
						|
  debug output every time it is called, regardless of the compilation cache.
 | 
						|
 | 
						|
- Issue #20368: The null character now correctly passed from Tcl to Python.
 | 
						|
  Improved error handling in variables-related commands.
 | 
						|
 | 
						|
- Issue #20435: Fix _pyio.StringIO.getvalue() to take into account newline
 | 
						|
  translation settings.
 | 
						|
 | 
						|
- tracemalloc: Fix slicing traces and fix slicing a traceback.
 | 
						|
 | 
						|
- Issue #20354: Fix an alignment issue in the tracemalloc module on 64-bit
 | 
						|
  platforms. Bug seen on 64-bit Linux when using "make profile-opt".
 | 
						|
 | 
						|
- Issue #17159: inspect.signature now accepts duck types of functions,
 | 
						|
  which adds support for Cython functions. Initial patch by Stefan Behnel.
 | 
						|
 | 
						|
- Issue #18801: Fix inspect.classify_class_attrs to correctly classify
 | 
						|
  object.__new__ and object.__init__.
 | 
						|
 | 
						|
- Fixed cmath.isinf's name in its argument parsing code.
 | 
						|
 | 
						|
- Issue #20311, #20452: poll and epoll now round the timeout away from zero,
 | 
						|
  instead of rounding towards zero, in select and selectors modules:
 | 
						|
  select.epoll.poll(), selectors.PollSelector.poll() and
 | 
						|
  selectors.EpollSelector.poll(). For example, a timeout of one microsecond
 | 
						|
  (1e-6) is now rounded to one millisecondi (1e-3), instead of being rounded to
 | 
						|
  zero.  However, the granularity property and asyncio's resolution feature
 | 
						|
  were removed again.
 | 
						|
 | 
						|
- asyncio: Some refactoring; various fixes; add write flow control to
 | 
						|
  unix pipes; Future.set_exception() instantiates the exception
 | 
						|
  argument if it is a class; improved proactor pipe transport; support
 | 
						|
  wait_for(f, None); don't log broken/disconnected pipes; use
 | 
						|
  ValueError instead of assert for forbidden subprocess_{shell,exec}
 | 
						|
  arguments; added a convenience API for subprocess management; added
 | 
						|
  StreamReader.at_eof(); properly handle duplicate coroutines/futures
 | 
						|
  in gather(), wait(), as_completed(); use a bytearray for buffering
 | 
						|
  in StreamReader; and more.
 | 
						|
 | 
						|
- Issue #20288: fix handling of invalid numeric charrefs in HTMLParser.
 | 
						|
 | 
						|
- Issue #20424: Python implementation of io.StringIO now supports lone surrogates.
 | 
						|
 | 
						|
- Issue #20308: inspect.signature now works on classes without user-defined
 | 
						|
  __init__ or __new__ methods.
 | 
						|
 | 
						|
- Issue #20372: inspect.getfile (and a bunch of other inspect functions that
 | 
						|
  use it) doesn't crash with unexpected AttributeError on classes defined in C
 | 
						|
  without __module__.
 | 
						|
 | 
						|
- Issue #20356: inspect.signature formatting uses '/' to separate
 | 
						|
  positional-only parameters from others.
 | 
						|
 | 
						|
- Issue #20223: inspect.signature now supports methods defined with
 | 
						|
  functools.partialmethods.
 | 
						|
 | 
						|
- Issue #19456: ntpath.join() now joins relative paths correctly when a drive
 | 
						|
  is present.
 | 
						|
 | 
						|
- Issue #19077: tempfile.TemporaryDirectory cleanup no longer fails when
 | 
						|
  called during shutdown.  Emitting resource warning in __del__ no longer fails.
 | 
						|
  Original patch by Antoine Pitrou.
 | 
						|
 | 
						|
- Issue #20394: Silence Coverity warning in audioop module.
 | 
						|
 | 
						|
- Issue #20367: Fix behavior of concurrent.futures.as_completed() for
 | 
						|
  duplicate arguments.  Patch by Glenn Langford.
 | 
						|
 | 
						|
- Issue #8260: The read(), readline() and readlines() methods of
 | 
						|
  codecs.StreamReader returned incomplete data when were called after
 | 
						|
  readline() or read(size).  Based on patch by Amaury Forgeot d'Arc.
 | 
						|
 | 
						|
- Issue #20105: the codec exception chaining now correctly sets the
 | 
						|
  traceback of the original exception as its __traceback__ attribute.
 | 
						|
 | 
						|
- Issue #17481: inspect.getfullargspec() now uses inspect.signature() API.
 | 
						|
 | 
						|
- Issue #15304: concurrent.futures.wait() can block forever even if
 | 
						|
  Futures have completed. Patch by Glenn Langford.
 | 
						|
 | 
						|
- Issue #14455: plistlib: fix serializing integers in the range
 | 
						|
  of an unsigned long long but outside of the range of signed long long for
 | 
						|
  binary plist files.
 | 
						|
 | 
						|
IDLE
 | 
						|
----
 | 
						|
 | 
						|
- Issue #20406: Use Python application icons for Idle window title bars.
 | 
						|
  Patch mostly by Serhiy Storchaka.
 | 
						|
 | 
						|
- Update the python.gif icon for the Idle classbrowser and pathbowser
 | 
						|
  from the old green snake to the new blue and yellow snakes.
 | 
						|
 | 
						|
- Issue #17721: Remove non-functional configuration dialog help button until we
 | 
						|
  make it actually gives some help when clicked. Patch by Guilherme Simões.
 | 
						|
 | 
						|
Tests
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #20532: Tests which use _testcapi now are marked as CPython only.
 | 
						|
 | 
						|
- Issue #19920: Added tests for TarFile.list().  Based on patch by Vajrasky Kok.
 | 
						|
 | 
						|
- Issue #19990: Added tests for the imghdr module.  Based on patch by
 | 
						|
  Claudiu Popa.
 | 
						|
 | 
						|
- Issue #20474: Fix test_socket "unexpected success" failures on OS X 10.7+.
 | 
						|
 | 
						|
Tools/Demos
 | 
						|
-----------
 | 
						|
 | 
						|
- Issue #20530: Argument Clinic's signature format has been revised again.
 | 
						|
  The new syntax is highly human readable while still preventing false
 | 
						|
  positives.  The syntax also extends Python syntax to denote "self" and
 | 
						|
  positional-only parameters, allowing inspect.Signature objects to be
 | 
						|
  totally accurate for all supported builtins in Python 3.4.
 | 
						|
 | 
						|
- Issue #20456: Argument Clinic now observes the C preprocessor conditional
 | 
						|
  compilation statements of the C files it parses.  When a Clinic block is
 | 
						|
  inside a conditional code, it adjusts its output to match, including
 | 
						|
  automatically generating an empty methoddef macro.
 | 
						|
 | 
						|
- Issue #20456: Cloned functions in Argument Clinic now use the correct
 | 
						|
  name, not the name of the function they were cloned from, for text
 | 
						|
  strings inside generated code.
 | 
						|
 | 
						|
- Issue #20456: Fixed Argument Clinic's test suite and "--converters" feature.
 | 
						|
 | 
						|
- Issue #20456: Argument Clinic now allows specifying different names
 | 
						|
  for a parameter in Python and C, using "as" on the parameter line.
 | 
						|
 | 
						|
- Issue #20326: Argument Clinic now uses a simple, unique signature to
 | 
						|
  annotate text signatures in docstrings, resulting in fewer false
 | 
						|
  positives.  "self" parameters are also explicitly marked, allowing
 | 
						|
  inspect.Signature() to authoritatively detect (and skip) said parameters.
 | 
						|
 | 
						|
- Issue #20326: Argument Clinic now generates separate checksums for the
 | 
						|
  input and output sections of the block, allowing external tools to verify
 | 
						|
  that the input has not changed (and thus the output is not out-of-date).
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #20465: Update SQLite shipped with OS X installer to 3.8.3.
 | 
						|
 | 
						|
C-API
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #20517: Added new functions allowing OSError exceptions to reference
 | 
						|
  two filenames instead of one: PyErr_SetFromErrnoWithFilenameObjects() and
 | 
						|
  PyErr_SetExcFromWindowsErrWithFilenameObjects().
 | 
						|
 | 
						|
Documentation
 | 
						|
-------------
 | 
						|
 | 
						|
- Issue #20488: Change wording to say importlib is *the* implementation of
 | 
						|
  import instead of just *an* implementation.
 | 
						|
 | 
						|
- Issue #6386: Clarify in the tutorial that specifying a symlink to execute
 | 
						|
  means the directory containing the executed script and not the symlink is
 | 
						|
  added to sys.path.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.4.0 Beta 3?
 | 
						|
==================================
 | 
						|
 | 
						|
Release date: 2014-01-26
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #20189: Four additional builtin types (PyTypeObject,
 | 
						|
  PyMethodDescr_Type, _PyMethodWrapper_Type, and PyWrapperDescr_Type)
 | 
						|
  have been modified to provide introspection information for builtins.
 | 
						|
 | 
						|
- Issue #17825: Cursor "^" is correctly positioned for SyntaxError and
 | 
						|
  IndentationError.
 | 
						|
 | 
						|
- Issue #2382: SyntaxError cursor "^" is now written at correct position in most
 | 
						|
  cases when multibyte characters are in line (before "^").  This still not
 | 
						|
  works correctly with wide East Asian characters.
 | 
						|
 | 
						|
- Issue #18960: The first line of Python script could be executed twice when
 | 
						|
  the source encoding was specified on the second line.  Now the source encoding
 | 
						|
  declaration on the second line isn't effective if the first line contains
 | 
						|
  anything except a comment.  'python -x' works now again with files with the
 | 
						|
  source encoding declarations, and can be used to make Python batch files
 | 
						|
  on Windows.
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- asyncio: Various improvements and small changes not all covered by
 | 
						|
  issues listed below.  E.g. wait_for() now cancels the inner task if
 | 
						|
  the timeout occcurs; tweaked the set of exported symbols; renamed
 | 
						|
  Empty/Full to QueueEmpty/QueueFull; "with (yield from lock)" now
 | 
						|
  uses a separate context manager; readexactly() raises if not enough
 | 
						|
  data was read; PTY support tweaks.
 | 
						|
 | 
						|
- Issue #20311: asyncio: Add a granularity attribute to BaseEventLoop: maximum
 | 
						|
  between the resolution of the BaseEventLoop.time() method and the resolution
 | 
						|
  of the selector. The granuarility is used in the scheduler to round time and
 | 
						|
  deadline.
 | 
						|
 | 
						|
- Issue #20311: selectors: Add a resolution attribute to BaseSelector.
 | 
						|
 | 
						|
- Issue #20189: unittest.mock now no longer assumes that any object for
 | 
						|
  which it could get an inspect.Signature is a callable written in Python.
 | 
						|
  Fix courtesy of Michael Foord.
 | 
						|
 | 
						|
- Issue #20317: ExitStack.__exit__ could create a self-referential loop if an
 | 
						|
  exception raised by a cleanup operation already had its context set
 | 
						|
  correctly (for example, by the @contextmanager decorator). The infinite
 | 
						|
  loop this caused is now avoided by checking if the expected context is
 | 
						|
  already set before trying to fix it.
 | 
						|
 | 
						|
- Issue #20374: Fix build with GNU readline >= 6.3.
 | 
						|
 | 
						|
- Issue #20262: Warnings are raised now when duplicate names are added in the
 | 
						|
  ZIP file or too long ZIP file comment is truncated.
 | 
						|
 | 
						|
- Issue #20165: The unittest module no longer considers tests marked with
 | 
						|
  @expectedFailure successful if they pass.
 | 
						|
 | 
						|
- Issue #18574: Added missing newline in 100-Continue reply from
 | 
						|
  http.server.BaseHTTPRequestHandler. Patch by Nikolaus Rath.
 | 
						|
 | 
						|
- Issue #20270: urllib.urlparse now supports empty ports.
 | 
						|
 | 
						|
- Issue #20243: TarFile no longer raise ReadError when opened in write mode.
 | 
						|
 | 
						|
- Issue #20238: TarFile opened with external fileobj and "w:gz" mode didn't
 | 
						|
  write complete output on close.
 | 
						|
 | 
						|
- Issue #20245: The open functions in the tarfile module now correctly handle
 | 
						|
  empty mode.
 | 
						|
 | 
						|
- Issue #20242: Fixed basicConfig() format strings for the alternative
 | 
						|
  formatting styles. Thanks to kespindler for the bug report and patch.
 | 
						|
 | 
						|
- Issue #20246: Fix buffer overflow in socket.recvfrom_into.
 | 
						|
 | 
						|
- Issues #20206 and #5803: Fix edge case in email.quoprimime.encode where it
 | 
						|
  truncated lines ending in a character needing encoding but no newline by
 | 
						|
  using a more efficient algorithm that doesn't have the bug.
 | 
						|
 | 
						|
- Issue #19082: Working xmlrpc.server and xmlrpc.client examples. Both in
 | 
						|
  modules and in documentation. Initial patch contributed by Vajrasky Kok.
 | 
						|
 | 
						|
- Issue #20138: The wsgiref.application_uri() and wsgiref.request_uri()
 | 
						|
  functions now conform to PEP 3333 when handle non-ASCII URLs.
 | 
						|
 | 
						|
- Issue #19097: Raise the correct Exception when cgi.FieldStorage is given an
 | 
						|
  invalid fileobj.
 | 
						|
 | 
						|
- Issue #20152: Ported Python/import.c over to Argument Clinic.
 | 
						|
 | 
						|
- Issue #13107: argparse and optparse no longer raises an exception when output
 | 
						|
  a help on environment with too small COLUMNS.  Based on patch by
 | 
						|
  Elazar Gershuni.
 | 
						|
 | 
						|
- Issue #20207: Always disable SSLv2 except when PROTOCOL_SSLv2 is explicitly
 | 
						|
  asked for.
 | 
						|
 | 
						|
- Issue #18960: The tokenize module now ignore the source encoding declaration
 | 
						|
  on the second line if the first line contains anything except a comment.
 | 
						|
 | 
						|
- Issue #20078: Reading malformed zipfiles no longer hangs with 100% CPU
 | 
						|
  consumption.
 | 
						|
 | 
						|
- Issue #20113: os.readv() and os.writev() now raise an OSError exception on
 | 
						|
  error instead of returning -1.
 | 
						|
 | 
						|
- Issue #19719: Make importlib.abc.MetaPathFinder.find_module(),
 | 
						|
  PathEntryFinder.find_loader(), and Loader.load_module() use PEP 451 APIs to
 | 
						|
  help with backwards-compatibility.
 | 
						|
 | 
						|
- Issue #20144: inspect.Signature now supports parsing simple symbolic
 | 
						|
  constants as parameter default values in __text_signature__.
 | 
						|
 | 
						|
- Issue #20072: Fixed multiple errors in tkinter with wantobjects is False.
 | 
						|
 | 
						|
- Issue #20229: Avoid plistlib deprecation warning in platform.mac_ver().
 | 
						|
 | 
						|
- Issue #14455: Fix some problems with the new binary plist support in plistlib.
 | 
						|
 | 
						|
IDLE
 | 
						|
----
 | 
						|
 | 
						|
- Issue #17390: Add Python version to Idle editor window title bar.
 | 
						|
  Original patches by Edmond Burnett and Kent Johnson.
 | 
						|
 | 
						|
- Issue #18960: IDLE now ignores the source encoding declaration on the second
 | 
						|
  line if the first line contains anything except a comment.
 | 
						|
 | 
						|
Tests
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #20358: Tests for curses.window.overlay and curses.window.overwrite
 | 
						|
  no longer specify min{row,col} > max{row,col}.
 | 
						|
 | 
						|
- Issue #19804: The test_find_mac test in test_uuid is now skipped if the
 | 
						|
  ifconfig executable is not available.
 | 
						|
 | 
						|
- Issue #19886: Use better estimated memory requirements for bigmem tests.
 | 
						|
 | 
						|
Tools/Demos
 | 
						|
-----------
 | 
						|
 | 
						|
- Issue #20390: Argument Clinic's "file" output preset now defaults to
 | 
						|
  "{dirname}/clinic/{basename}.h".
 | 
						|
 | 
						|
- Issue #20390: Argument Clinic's "class" directive syntax has been extended
 | 
						|
  with two new required arguments: "typedef" and "type_object".
 | 
						|
 | 
						|
- Issue #20390: Argument Clinic: If __new__ or __init__ functions didn't use
 | 
						|
  kwargs (or args), the PyArg_NoKeywords (or PyArg_NoPositional) calls
 | 
						|
  generated are only run when the type object is an exact match.
 | 
						|
 | 
						|
- Issue #20390: Argument Clinic now fails if you have required parameters after
 | 
						|
  optional parameters.
 | 
						|
 | 
						|
- Issue #20390: Argument Clinic converters now have a new template they can
 | 
						|
  inject code into: "modifiers".  Code put there is run in the parsing
 | 
						|
  function after argument parsing but before the call to the impl.
 | 
						|
 | 
						|
- Issue #20376: Argument Clinic now escapes backslashes in docstrings.
 | 
						|
 | 
						|
- Issue #20381: Argument Clinic now sanity checks the default argument when
 | 
						|
  c_default is also specified, providing a nice failure message for
 | 
						|
  disallowed values.
 | 
						|
 | 
						|
- Issue #20189: Argument Clinic now ensures that parser functions for
 | 
						|
  __new__ are always of type newfunc, the type of the tp_new slot.
 | 
						|
  Similarly, parser functions for __init__ are now always of type initproc,
 | 
						|
  the type of tp_init.
 | 
						|
 | 
						|
- Issue #20189: Argument Clinic now suppresses the docstring for __new__
 | 
						|
  and __init__ functions if no docstring is provided in the input.
 | 
						|
 | 
						|
- Issue #20189: Argument Clinic now suppresses the "self" parameter in the
 | 
						|
  impl for @staticmethod functions.
 | 
						|
 | 
						|
- Issue #20294: Argument Clinic now supports argument parsing for __new__ and
 | 
						|
  __init__ functions.
 | 
						|
 | 
						|
- Issue #20299: Argument Clinic custom converters may now change the default
 | 
						|
  value of c_default and py_default with a class member.
 | 
						|
 | 
						|
- Issue #20287: Argument Clinic's output is now configurable, allowing
 | 
						|
  delaying its output or even redirecting it to a separate file.
 | 
						|
 | 
						|
- Issue #20226: Argument Clinic now permits simple expressions
 | 
						|
  (e.g. "sys.maxsize - 1") as default values for parameters.
 | 
						|
 | 
						|
- Issue #19936: Added executable bits or shebang lines to Python scripts which
 | 
						|
  requires them.  Disable executable bits and shebang lines in test and
 | 
						|
  benchmark files in order to prevent using a random system python, and in
 | 
						|
  source files of modules which don't provide command line interface.  Fixed
 | 
						|
  shebang lines in the unittestgui and checkpip scripts.
 | 
						|
 | 
						|
- Issue #20268: Argument Clinic now supports cloning the parameters and
 | 
						|
  return converter of existing functions.
 | 
						|
 | 
						|
- Issue #20228: Argument Clinic now has special support for class special
 | 
						|
  methods.
 | 
						|
 | 
						|
- Issue #20214: Fixed a number of small issues and documentation errors in
 | 
						|
  Argument Clinic (see issue for details).
 | 
						|
 | 
						|
- Issue #20196: Fixed a bug where Argument Clinic did not generate correct
 | 
						|
  parsing code for functions with positional-only parameters where all arguments
 | 
						|
  are optional.
 | 
						|
 | 
						|
- Issue #18960: 2to3 and the findnocoding.py script now ignore the source
 | 
						|
  encoding declaration on the second line if the first line contains anything
 | 
						|
  except a comment.
 | 
						|
 | 
						|
- Issue #19723: The marker comments Argument Clinic uses have been changed
 | 
						|
  to improve readability.
 | 
						|
 | 
						|
- Issue #20157: When Argument Clinic renames a parameter because its name
 | 
						|
  collides with a C keyword, it no longer exposes that rename to PyArg_Parse.
 | 
						|
 | 
						|
- Issue #20141: Improved Argument Clinic's support for the PyArg_Parse "O!"
 | 
						|
  format unit.
 | 
						|
 | 
						|
- Issue #20144: Argument Clinic now supports simple symbolic constants
 | 
						|
  as parameter default values.
 | 
						|
 | 
						|
- Issue #20143: The line numbers reported in Argument Clinic errors are
 | 
						|
  now more accurate.
 | 
						|
 | 
						|
- Issue #20142: Py_buffer variables generated by Argument Clinic are now
 | 
						|
  initialized with a default value.
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #12837: Silence a tautological comparison warning on OS X under Clang in
 | 
						|
  socketmodule.c.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.4.0 Beta 2?
 | 
						|
==================================
 | 
						|
 | 
						|
Release date: 2014-01-05
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #17432: Drop UCS2 from names of Unicode functions in python3.def.
 | 
						|
 | 
						|
- Issue #19526: Exclude all new API from the stable ABI. Exceptions can be
 | 
						|
  made if a need is demonstrated.
 | 
						|
 | 
						|
- Issue #19969: PyBytes_FromFormatV() now raises an OverflowError if "%c"
 | 
						|
  argument is not in range [0; 255].
 | 
						|
 | 
						|
- Issue #19995: %c, %o, %x, and %X now issue a DeprecationWarning on non-integer
 | 
						|
  input; reworded docs to clarify that an integer type should define both __int__
 | 
						|
  and __index__.
 | 
						|
 | 
						|
- Issue #19787: PyThread_set_key_value() now always set the value. In Python
 | 
						|
  3.3, the function did nothing if the key already exists (if the current value
 | 
						|
  is a non-NULL pointer).
 | 
						|
 | 
						|
- Issue #14432: Remove the thread state field from the frame structure. Fix a
 | 
						|
  crash when a generator is created in a C thread that is destroyed while the
 | 
						|
  generator is still used. The issue was that a generator contains a frame, and
 | 
						|
  the frame kept a reference to the Python state of the destroyed C thread. The
 | 
						|
  crash occurs when a trace function is setup.
 | 
						|
 | 
						|
- Issue #19576: PyGILState_Ensure() now initializes threads. At startup, Python
 | 
						|
  has no concrete GIL. If PyGILState_Ensure() is called from a new thread for
 | 
						|
  the first time and PyEval_InitThreads() was not called yet, a GIL needs to be
 | 
						|
  created.
 | 
						|
 | 
						|
- Issue #17576: Deprecation warning emitted now when __int__() or __index__()
 | 
						|
  return not int instance.
 | 
						|
 | 
						|
- Issue #19932: Fix typo in import.h, missing whitespaces in function prototypes.
 | 
						|
 | 
						|
- Issue #19736: Add module-level statvfs constants defined for GNU/glibc
 | 
						|
  based systems.
 | 
						|
 | 
						|
- Issue #20097: Fix bad use of "self" in importlib's WindowsRegistryFinder.
 | 
						|
 | 
						|
- Issue #19729: In str.format(), fix recursive expansion in format spec.
 | 
						|
 | 
						|
- Issue #19638: Fix possible crash / undefined behaviour from huge (more than 2
 | 
						|
  billion characters) input strings in _Py_dg_strtod.
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #20154: Deadlock in asyncio.StreamReader.readexactly().
 | 
						|
 | 
						|
- Issue #16113: Remove sha3 module again.
 | 
						|
 | 
						|
- Issue #20111: pathlib.Path.with_suffix() now sanity checks the given suffix.
 | 
						|
 | 
						|
- Fix breakage in TestSuite.countTestCases() introduced by issue #11798.
 | 
						|
 | 
						|
- Issue #20108: Avoid parameter name clash in inspect.getcallargs().
 | 
						|
 | 
						|
- Issue #19918: Fix PurePath.relative_to() under Windows.
 | 
						|
 | 
						|
- Issue #19422: Explicitly disallow non-SOCK_STREAM sockets in the ssl
 | 
						|
  module, rather than silently let them emit clear text data.
 | 
						|
 | 
						|
- Issue #20046: Locale alias table no longer contains entities which can be
 | 
						|
  calculated.  Generalized support of the euro modifier.
 | 
						|
 | 
						|
- Issue #20027: Fixed locale aliases for devanagari locales.
 | 
						|
 | 
						|
- Issue #20067: Tkinter variables now work when wantobjects is false.
 | 
						|
 | 
						|
- Issue #19020: Tkinter now uses splitlist() instead of split() in configure
 | 
						|
  methods.
 | 
						|
 | 
						|
- Issue #19744: ensurepip now provides a better error message when Python is
 | 
						|
  built without SSL/TLS support (pip currently requires that support to run,
 | 
						|
  even if only operating with local wheel files)
 | 
						|
 | 
						|
- Issue #19734: ensurepip now ignores all pip environment variables to avoid
 | 
						|
  odd behaviour based on user configuration settings
 | 
						|
 | 
						|
- Fix TypeError on "setup.py upload --show-response".
 | 
						|
 | 
						|
- Issue #20045: Fix "setup.py register --list-classifiers".
 | 
						|
 | 
						|
- Issue #18879: When a method is looked up on a temporary file, avoid closing
 | 
						|
  the file before the method is possibly called.
 | 
						|
 | 
						|
- Issue #20037: Avoid crashes when opening a text file late at interpreter
 | 
						|
  shutdown.
 | 
						|
 | 
						|
- Issue #19967: Thanks to the PEP 442, asyncio.Future now uses a
 | 
						|
  destructor to log uncaught exceptions, instead of the dedicated
 | 
						|
  _TracebackLogger class.
 | 
						|
 | 
						|
- Added a Task.current_task() class method to asyncio.
 | 
						|
 | 
						|
- Issue #19850: Set SA_RESTART in asyncio when registering a signal
 | 
						|
  handler to limit EINTR occurrences.
 | 
						|
 | 
						|
- Implemented write flow control in asyncio for proactor event loop (Windows).
 | 
						|
 | 
						|
- Change write buffer in asyncio use to avoid O(N**2) behavior.  Make
 | 
						|
  write()/sendto() accept bytearray/memoryview.
 | 
						|
 | 
						|
- Issue #20034: Updated alias mapping to most recent locale.alias file
 | 
						|
  from X.org distribution using makelocalealias.py.
 | 
						|
 | 
						|
- Issue #5815: Fixed support for locales with modifiers.  Fixed support for
 | 
						|
  locale encodings with hyphens.
 | 
						|
 | 
						|
- Issue #20026: Fix the sqlite module to handle correctly invalid isolation
 | 
						|
  level (wrong type).
 | 
						|
 | 
						|
- Issue #18829: csv.Dialect() now checks type for delimiter, escapechar and
 | 
						|
  quotechar fields.  Original patch by Vajrasky Kok.
 | 
						|
 | 
						|
- Issue #19855: uuid.getnode() on Unix now looks on the PATH for the
 | 
						|
  executables used to find the mac address, with /sbin and /usr/sbin as
 | 
						|
  fallbacks.
 | 
						|
 | 
						|
- Issue #20007: HTTPResponse.read(0) no more prematurely closes connection.
 | 
						|
  Original patch by Simon Sapin.
 | 
						|
 | 
						|
- Issue #19946: multiprocessing now uses runpy to initialize __main__ in
 | 
						|
  child processes when necessary, allowing it to correctly handle scripts
 | 
						|
  without suffixes and submodules that use explicit relative imports or
 | 
						|
  otherwise rely on parent modules being correctly imported prior to
 | 
						|
  execution.
 | 
						|
 | 
						|
- Issue #19921: When Path.mkdir() is called with parents=True, any missing
 | 
						|
  parent is created with the default permissions, ignoring the mode argument
 | 
						|
  (mimicking the POSIX "mkdir -p" command).
 | 
						|
 | 
						|
- Issue #19887: Improve the Path.resolve() algorithm to support certain
 | 
						|
  symlink chains.
 | 
						|
 | 
						|
- Issue #19912: Fixed numerous bugs in ntpath.splitunc().
 | 
						|
 | 
						|
- Issue #19911: ntpath.splitdrive() now correctly processes the 'İ' character
 | 
						|
  (U+0130, LATIN CAPITAL LETTER I WITH DOT ABOVE).
 | 
						|
 | 
						|
- Issue #19532: python -m compileall with no filename/directory arguments now
 | 
						|
  respects the -f and -q flags instead of ignoring them.
 | 
						|
 | 
						|
- Issue #19623: Fixed writing to unseekable files in the aifc module.
 | 
						|
 | 
						|
- Issue #19946: multiprocessing.spawn now raises ImportError when the module to
 | 
						|
  be used as the main module cannot be imported.
 | 
						|
 | 
						|
- Issue #17919: select.poll.register() again works with poll.POLLNVAL on AIX.
 | 
						|
  Fixed integer overflow in the eventmask parameter.
 | 
						|
 | 
						|
- Issue #19063: if a Charset's body_encoding was set to None, the email
 | 
						|
  package would generate a message claiming the Content-Transfer-Encoding
 | 
						|
  was 7bit, and produce garbage output for the content.  This now works.
 | 
						|
  A couple of other set_payload mishandlings of non-ASCII are also fixed.
 | 
						|
  In addition, calling set_payload with a string argument without
 | 
						|
  specifying a charset now raises an error (this is a new error in 3.4).
 | 
						|
 | 
						|
- Issue #15475: Add __sizeof__ implementations for itertools objects.
 | 
						|
 | 
						|
- Issue #19944: Fix importlib.find_spec() so it imports parents as needed
 | 
						|
  and move the function to importlib.util.
 | 
						|
 | 
						|
- Issue #19880: Fix a reference leak in unittest.TestCase. Explicitly break
 | 
						|
  reference cycles between frames and the _Outcome instance.
 | 
						|
 | 
						|
- Issue #17429: platform.linux_distribution() now decodes files from the UTF-8
 | 
						|
  encoding with the surrogateescape error handler, instead of decoding from the
 | 
						|
  locale encoding in strict mode. It fixes the function on Fedora 19 which is
 | 
						|
  probably the first major distribution release with a non-ASCII name. Patch
 | 
						|
  written by Toshio Kuratomi.
 | 
						|
 | 
						|
- Issue #19343: Expose FreeBSD-specific APIs in resource module.  Original
 | 
						|
  patch by Koobs.
 | 
						|
 | 
						|
- Issue #19929: Call os.read with 32768 within subprocess.Popen.communicate
 | 
						|
  rather than 4096 for efficiency.  A microbenchmark shows Linux and OS X
 | 
						|
  both using ~50% less cpu time this way.
 | 
						|
 | 
						|
- Issue #19506: Use a memoryview to avoid a data copy when piping data
 | 
						|
  to stdin within subprocess.Popen.communicate.  5-10% less cpu usage.
 | 
						|
 | 
						|
- Issue #19876: selectors unregister() no longer raises ValueError or OSError
 | 
						|
  if the FD is closed (as long as it was registered).
 | 
						|
 | 
						|
- Issue #19908: pathlib now joins relative Windows paths correctly when a drive
 | 
						|
  is present.  Original patch by Antoine Pitrou.
 | 
						|
 | 
						|
- Issue #19296: Silence compiler warning in dbm_open
 | 
						|
 | 
						|
- Issue #6784: Strings from Python 2 can now be unpickled as bytes
 | 
						|
  objects by setting the encoding argument of Unpickler to be 'bytes'.
 | 
						|
  Initial patch by Merlijn van Deen.
 | 
						|
 | 
						|
- Issue #19839: Fix regression in bz2 module's handling of non-bzip2 data at
 | 
						|
  EOF, and analogous bug in lzma module.
 | 
						|
 | 
						|
- Issue #19881: Fix pickling bug where cpickle would emit bad pickle data for
 | 
						|
  large bytes string (i.e., with size greater than 2**32-1).
 | 
						|
 | 
						|
- Issue #19138: doctest's IGNORE_EXCEPTION_DETAIL now allows a match when
 | 
						|
  no exception detail exists (no colon following the exception's name, or
 | 
						|
  a colon does follow but no text follows the colon).
 | 
						|
 | 
						|
- Issue #19927: Add __eq__ to path-based loaders in importlib.
 | 
						|
 | 
						|
- Issue #19827: On UNIX, setblocking() and settimeout() methods of
 | 
						|
  socket.socket can now avoid a second syscall if the ioctl() function can be
 | 
						|
  used, or if the non-blocking flag of the socket is unchanged.
 | 
						|
 | 
						|
- Issue #19785: smtplib now supports SSLContext.check_hostname and server name
 | 
						|
  indication for TLS/SSL connections.
 | 
						|
 | 
						|
- Issue #19784: poplib now supports SSLContext.check_hostname and server name
 | 
						|
  indication for TLS/SSL connections.
 | 
						|
 | 
						|
- Issue #19783: nntplib now supports SSLContext.check_hostname and server name
 | 
						|
  indication for TLS/SSL connections.
 | 
						|
 | 
						|
- Issue #19782: imaplib now supports SSLContext.check_hostname and server name
 | 
						|
  indication for TLS/SSL connections.
 | 
						|
 | 
						|
- Issue #20123: Fix pydoc.synopsis() for "binary" modules.
 | 
						|
 | 
						|
- Issue #19834: Support unpickling of exceptions pickled by Python 2.
 | 
						|
 | 
						|
- Issue #19781: ftplib now supports SSLContext.check_hostname and server name
 | 
						|
  indication for TLS/SSL connections.
 | 
						|
 | 
						|
- Issue #19509: Add SSLContext.check_hostname to match the peer's certificate
 | 
						|
  with server_hostname on handshake.
 | 
						|
 | 
						|
- Issue #15798: Fixed subprocess.Popen() to no longer fail if file
 | 
						|
  descriptor 0, 1 or 2 is closed.
 | 
						|
 | 
						|
- Issue #17897: Optimized unpickle prefetching.
 | 
						|
 | 
						|
- Issue #3693: Make the error message more helpful when the array.array()
 | 
						|
  constructor is given a str. Move the array module typecode documentation to
 | 
						|
  the docstring of the constructor.
 | 
						|
 | 
						|
- Issue #19088: Fixed incorrect caching of the copyreg module in
 | 
						|
  object.__reduce__() and object.__reduce_ex__().
 | 
						|
 | 
						|
- Issue #19698: Removed exec_module() methods from
 | 
						|
  importlib.machinery.BuiltinImporter and ExtensionFileLoader.
 | 
						|
 | 
						|
- Issue #18864: Added a setter for ModuleSpec.has_location.
 | 
						|
 | 
						|
- Fixed _pickle.Unpickler to not fail when loading empty strings as
 | 
						|
  persistent IDs.
 | 
						|
 | 
						|
- Issue #11480: Fixed copy.copy to work with classes with custom metaclasses.
 | 
						|
  Patch by Daniel Urban.
 | 
						|
 | 
						|
- Issue #6477: Added support for pickling the types of built-in singletons
 | 
						|
  (i.e., Ellipsis, NotImplemented, None).
 | 
						|
 | 
						|
- Issue #19713: Add remaining PEP 451-related deprecations and move away
 | 
						|
  from using find_module/find_loaer/load_module.
 | 
						|
 | 
						|
- Issue #19708: Update pkgutil to use the new importer APIs.
 | 
						|
 | 
						|
- Issue #19703: Update pydoc to use the new importer APIs.
 | 
						|
 | 
						|
- Issue #19851: Fixed a regression in reloading sub-modules.
 | 
						|
 | 
						|
- ssl.create_default_context() sets OP_NO_COMPRESSION to prevent CRIME.
 | 
						|
 | 
						|
- Issue #19802: Add socket.SO_PRIORITY.
 | 
						|
 | 
						|
- Issue #11508: Fixed uuid.getnode() and uuid.uuid1() on environment with
 | 
						|
  virtual interface.  Original patch by Kent Frazier.
 | 
						|
 | 
						|
- Issue #11489: JSON decoder now accepts lone surrogates.
 | 
						|
 | 
						|
- Issue #19545: Avoid chained exceptions while passing stray % to
 | 
						|
  time.strptime().  Initial patch by Claudiu Popa.
 | 
						|
 | 
						|
IDLE
 | 
						|
----
 | 
						|
 | 
						|
- Issue #20058: sys.stdin.readline() in IDLE now always returns only one line.
 | 
						|
 | 
						|
- Issue #19481: print() of string subclass instance in IDLE no longer hangs.
 | 
						|
 | 
						|
- Issue #18270: Prevent possible IDLE AttributeError on OS X when no initial
 | 
						|
  shell window is present.
 | 
						|
 | 
						|
Tests
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #20055: Fix test_shutil under Windows with symlink privileges held.
 | 
						|
  Patch by Vajrasky Kok.
 | 
						|
 | 
						|
- Issue #20070: Don't run test_urllib2net when network resources are not
 | 
						|
  enabled.
 | 
						|
 | 
						|
- Issue #19938: Re-enabled test_bug_1333982 in test_dis, which had been
 | 
						|
  disabled since 3.0 due to the changes in listcomp handling.
 | 
						|
 | 
						|
- Issue #19320: test_tcl no longer fails when wantobjects is false.
 | 
						|
 | 
						|
- Issue #19919: Fix flaky SSL test. connect_ex() sometimes returns
 | 
						|
  EWOULDBLOCK on Windows or VMs hosted on Windows.
 | 
						|
 | 
						|
- Issue #19912: Added tests for ntpath.splitunc().
 | 
						|
 | 
						|
- Issue #19828: Fixed test_site when the whole suite is run with -S.
 | 
						|
 | 
						|
- Issue #19928: Implemented a test for repr() of cell objects.
 | 
						|
 | 
						|
- Issue #19535: Fixed test_docxmlrpc, test_functools, test_inspect, and
 | 
						|
  test_statistics when python is run with -OO.
 | 
						|
 | 
						|
- Issue #19926: Removed unneeded test_main from test_abstract_numbers.
 | 
						|
  Patch by Vajrasky Kok.
 | 
						|
 | 
						|
- Issue #19572: More skipped tests explicitly marked as skipped.
 | 
						|
 | 
						|
- Issue #19595, #19987: Re-enabled a long-disabled test in test_winsound.
 | 
						|
 | 
						|
- Issue #19588: Fixed tests in test_random that were silently skipped most
 | 
						|
  of the time.  Patch by Julian Gindi.
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #19728: Enable pip installation by default on Windows.
 | 
						|
 | 
						|
- Issue #16136: Remove VMS support
 | 
						|
 | 
						|
- Issue #18215: Add script Tools/ssl/test_multiple_versions.py to compile and
 | 
						|
  run Python's unit tests with multiple versions of OpenSSL.
 | 
						|
 | 
						|
- Issue #19922: define _INCLUDE__STDC_A1_SOURCE in HP-UX to include mbstate_t
 | 
						|
  for mbrtowc().
 | 
						|
 | 
						|
- Issue #19788: kill_python(_d).exe is now run as a PreBuildEvent on the
 | 
						|
  pythoncore sub-project.  This should prevent build errors due a previous
 | 
						|
  build's python(_d).exe still running.
 | 
						|
 | 
						|
Documentation
 | 
						|
-------------
 | 
						|
 | 
						|
- Issue #20265: Updated some parts of the Using Windows document.
 | 
						|
 | 
						|
- Issue #20266: Updated some parts of the Windows FAQ.
 | 
						|
 | 
						|
- Issue #20255: Updated the about and bugs pages.
 | 
						|
 | 
						|
- Issue #20253: Fixed a typo in the ipaddress docs that advertised an
 | 
						|
  illegal attribute name.  Found by INADA Naoki.
 | 
						|
 | 
						|
- Issue #18840: Introduce the json module in the tutorial, and de-emphasize
 | 
						|
  the pickle module.
 | 
						|
 | 
						|
- Issue #19845: Updated the Compiling Python on Windows section.
 | 
						|
 | 
						|
- Issue #19795: Improved markup of True/False constants.
 | 
						|
 | 
						|
Tools/Demos
 | 
						|
-----------
 | 
						|
 | 
						|
- Issue #19659: Added documentation for Argument Clinic.
 | 
						|
 | 
						|
- Issue #19976: Argument Clinic METH_NOARGS functions now always
 | 
						|
  take two parameters.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.4.0 Beta 1?
 | 
						|
==================================
 | 
						|
 | 
						|
Release date: 2013-11-24
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Use the repr of a module name in more places in import, especially
 | 
						|
  exceptions.
 | 
						|
 | 
						|
- Issue #19619: str.encode, bytes.decode and bytearray.decode now use an
 | 
						|
  internal API to throw LookupError for known non-text encodings, rather
 | 
						|
  than attempting the encoding or decoding operation and then throwing a
 | 
						|
  TypeError for an unexpected output type. (The latter mechanism remains
 | 
						|
  in place for third party non-text encodings)
 | 
						|
 | 
						|
- Issue #19183: Implement PEP 456 'secure and interchangeable hash algorithm'.
 | 
						|
  Python now uses SipHash24 on all major platforms.
 | 
						|
 | 
						|
- Issue #12892: The utf-16* and utf-32* encoders no longer allow surrogate code
 | 
						|
  points (U+D800-U+DFFF) to be encoded.  The utf-32* decoders no longer decode
 | 
						|
  byte sequences that correspond to surrogate code points.  The surrogatepass
 | 
						|
  error handler now works with the utf-16* and utf-32* codecs.  Based on
 | 
						|
  patches by Victor Stinner and Kang-Hao (Kenny) Lu.
 | 
						|
 | 
						|
- Issue #17806: Added keyword-argument support for "tabsize" to
 | 
						|
  str/bytes.expandtabs().
 | 
						|
 | 
						|
- Issue #17828: Output type errors in str.encode(), bytes.decode() and
 | 
						|
  bytearray.decode() now direct users to codecs.encode() or codecs.decode()
 | 
						|
  as appropriate.
 | 
						|
 | 
						|
- Issue #17828: The interpreter now attempts to chain errors that occur in
 | 
						|
  codec processing with a replacement exception of the same type that
 | 
						|
  includes the codec name in the error message. It ensures it only does this
 | 
						|
  when the creation of the replacement exception won't lose any information.
 | 
						|
 | 
						|
- Issue #19466: Clear the frames of daemon threads earlier during the
 | 
						|
  Python shutdown to call objects destructors. So "unclosed file" resource
 | 
						|
  warnings are now corretly emitted for daemon threads.
 | 
						|
 | 
						|
- Issue #19514: Deduplicate some _Py_IDENTIFIER declarations.
 | 
						|
  Patch by Andrei Dorian Duma.
 | 
						|
 | 
						|
- Issue #17936: Fix O(n**2) behaviour when adding or removing many subclasses
 | 
						|
  of a given type.
 | 
						|
 | 
						|
- Issue #19428: zipimport now handles errors when reading truncated or invalid
 | 
						|
  ZIP archive.
 | 
						|
 | 
						|
- Issue #18408: Add a new PyFrame_FastToLocalsWithError() function to handle
 | 
						|
  exceptions when merging fast locals into f_locals of a frame.
 | 
						|
  PyEval_GetLocals() now raises an exception and return NULL on failure.
 | 
						|
 | 
						|
- Issue #19369: Optimized the usage of __length_hint__().
 | 
						|
 | 
						|
- Issue #18603: Ensure that PyOS_mystricmp and PyOS_mystrnicmp are in the
 | 
						|
  Python executable and not removed by the linker's optimizer.
 | 
						|
 | 
						|
- Issue #19306: Add extra hints to the faulthandler module's stack
 | 
						|
  dumps that these are "upside down".
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #3158: doctest can now find doctests in functions and methods
 | 
						|
  written in C.
 | 
						|
 | 
						|
- Issue #13477: Added command line interface to the tarfile module.
 | 
						|
  Original patch by Berker Peksag.
 | 
						|
 | 
						|
- Issue #19674: inspect.signature() now produces a correct signature
 | 
						|
  for some builtins.
 | 
						|
 | 
						|
- Issue #19722: Added opcode.stack_effect(), which
 | 
						|
  computes the stack effect of bytecode instructions.
 | 
						|
 | 
						|
- Issue #19735: Implement private function ssl._create_stdlib_context() to
 | 
						|
  create SSLContext objects in Python's stdlib module. It provides a single
 | 
						|
  configuration point and makes use of SSLContext.load_default_certs().
 | 
						|
 | 
						|
- Issue #16203: Add re.fullmatch() function and regex.fullmatch() method,
 | 
						|
  which anchor the pattern at both ends of the string to match.
 | 
						|
  Original patch by Matthew Barnett.
 | 
						|
 | 
						|
- Issue #13592: Improved the repr for regular expression pattern objects.
 | 
						|
  Based on patch by Hugo Lopes Tavares.
 | 
						|
 | 
						|
- Issue #19641: Added the audioop.byteswap() function to convert big-endian
 | 
						|
  samples to little-endian and vice versa.
 | 
						|
 | 
						|
- Issue #15204: Deprecated the 'U' mode in file-like objects.
 | 
						|
 | 
						|
- Issue #17810: Implement PEP 3154, pickle protocol 4.
 | 
						|
 | 
						|
- Issue #19668: Added support for the cp1125 encoding.
 | 
						|
 | 
						|
- Issue #19689: Add ssl.create_default_context() factory function. It creates
 | 
						|
  a new SSLContext object with secure default settings.
 | 
						|
 | 
						|
- Issue #19727: os.utime(..., None) is now potentially more precise
 | 
						|
  under Windows.
 | 
						|
 | 
						|
- Issue #17201: ZIP64 extensions now are enabled by default.  Patch by
 | 
						|
  William Mallard.
 | 
						|
 | 
						|
- Issue #19292: Add SSLContext.load_default_certs() to load default root CA
 | 
						|
  certificates from default stores or system stores. By default the method
 | 
						|
  loads CA certs for authentication of server certs.
 | 
						|
 | 
						|
- Issue #19673: Add pathlib to the stdlib as a provisional module (PEP 428).
 | 
						|
 | 
						|
- Issue #16596: pdb in a generator now properly skips over yield and
 | 
						|
  yield from rather than stepping out of the generator into its
 | 
						|
  caller.  (This is essential for stepping through asyncio coroutines.)
 | 
						|
 | 
						|
- Issue #17916: Added dis.Bytecode.from_traceback() and
 | 
						|
  dis.Bytecode.current_offset to easily display "current instruction"
 | 
						|
  markers in the new disassembly API (Patch by Claudiu Popa).
 | 
						|
 | 
						|
- Issue #19552: venv now supports bootstrapping pip into virtual environments
 | 
						|
 | 
						|
- Issue #17134: Finalize interface to Windows' certificate store. Cert and
 | 
						|
  CRL enumeration are now two functions. enum_certificates() also returns
 | 
						|
  purpose flags as set of OIDs.
 | 
						|
 | 
						|
- Issue #19555: Restore sysconfig.get_config_var('SO'), (and the distutils
 | 
						|
  equivalent) with a DeprecationWarning pointing people at $EXT_SUFFIX.
 | 
						|
 | 
						|
- Issue #8813: Add SSLContext.verify_flags to change the verification flags
 | 
						|
  of the context in order to enable certification revocation list (CRL)
 | 
						|
  checks or strict X509 rules.
 | 
						|
 | 
						|
- Issue #18294: Fix the zlib module to make it 64-bit safe.
 | 
						|
 | 
						|
- Issue #19682: Fix compatibility issue with old version of OpenSSL that
 | 
						|
  was introduced by Issue #18379.
 | 
						|
 | 
						|
- Issue #14455: plistlib now supports binary plists and has an updated API.
 | 
						|
 | 
						|
- Issue #19633: Fixed writing not compressed 16- and 32-bit wave files on
 | 
						|
  big-endian platforms.
 | 
						|
 | 
						|
- Issue #18379: SSLSocket.getpeercert() returns CA issuer AIA fields, OCSP
 | 
						|
  and CRL distribution points.
 | 
						|
 | 
						|
- Issue #18138: Implement cadata argument of SSLContext.load_verify_location()
 | 
						|
  to load CA certificates and CRL from memory. It supports PEM and DER
 | 
						|
  encoded strings.
 | 
						|
 | 
						|
- Issue #18775: Add name and block_size attribute to HMAC object. They now
 | 
						|
  provide the same API elements as non-keyed cryptographic hash functions.
 | 
						|
 | 
						|
- Issue #17276: MD5 as default digestmod for HMAC is deprecated. The HMAC
 | 
						|
  module supports digestmod names, e.g. hmac.HMAC('sha1').
 | 
						|
 | 
						|
- Issue #19449: in csv's writerow, handle non-string keys when generating the
 | 
						|
  error message that certain keys are not in the 'fieldnames' list.
 | 
						|
 | 
						|
- Issue #13633: Added a new convert_charrefs keyword arg to HTMLParser that,
 | 
						|
  when True, automatically converts all character references.
 | 
						|
 | 
						|
- Issue #2927: Added the unescape() function to the html module.
 | 
						|
 | 
						|
- Issue #8402: Added the escape() function to the glob module.
 | 
						|
 | 
						|
- Issue #17618: Add Base85 and Ascii85 encoding/decoding to the base64 module.
 | 
						|
 | 
						|
- Issue #19634: time.strftime("%y") now raises a ValueError on AIX when given a
 | 
						|
  year before 1900.
 | 
						|
 | 
						|
- Fix test.support.bind_port() to not cause an error when Python was compiled
 | 
						|
  on a system with SO_REUSEPORT defined in the headers but run on a system
 | 
						|
  with an OS kernel that does not support that reasonably new socket option.
 | 
						|
 | 
						|
- Fix compilation error under gcc of the ctypes module bundled libffi for arm.
 | 
						|
 | 
						|
- Issue #19448: Add private API to SSL module to lookup ASN.1 objects by OID,
 | 
						|
  NID, short name and long name.
 | 
						|
 | 
						|
- Issue #19282: dbm.open now supports the context management protocol. (Inital
 | 
						|
  patch by Claudiu Popa)
 | 
						|
 | 
						|
- Issue #8311: Added support for writing any bytes-like objects in the aifc,
 | 
						|
  sunau, and wave modules.
 | 
						|
 | 
						|
- Issue #5202: Added support for unseekable files in the wave module.
 | 
						|
 | 
						|
- Issue #19544 and Issue #1180: Restore global option to ignore
 | 
						|
  ~/.pydistutils.cfg in Distutils, accidentally removed in backout of
 | 
						|
  distutils2 changes.
 | 
						|
 | 
						|
- Issue #19523: Closed FileHandler leak which occurred when delay was set.
 | 
						|
 | 
						|
- Issue #19544 and Issue #6516: Restore support for --user and --group
 | 
						|
  parameters to sdist command accidentally rolled back as part of the
 | 
						|
  distutils2 rollback.
 | 
						|
 | 
						|
- Issue #13674: Prevented time.strftime from crashing on Windows when given
 | 
						|
  a year before 1900 and a format of %y.
 | 
						|
 | 
						|
- Issue #19406: implementation of the ensurepip module (part of PEP 453).
 | 
						|
  Patch by Donald Stufft and Nick Coghlan.
 | 
						|
 | 
						|
- Issue #19544 and Issue #6286: Restore use of urllib over http allowing use
 | 
						|
  of http_proxy for Distutils upload command, a feature accidentally lost
 | 
						|
  in the rollback of distutils2.
 | 
						|
 | 
						|
- Issue #19544 and Issue #7457: Restore the read_pkg_file method to
 | 
						|
  distutils.dist.DistributionMetadata accidentally removed in the undo of
 | 
						|
  distutils2.
 | 
						|
 | 
						|
- Issue #16685: Added support for any bytes-like objects in the audioop module.
 | 
						|
  Removed support for strings.
 | 
						|
 | 
						|
- Issue #7171: Add Windows implementation of ``inet_ntop`` and ``inet_pton``
 | 
						|
  to socket module. Patch by Atsuo Ishimoto.
 | 
						|
 | 
						|
- Issue #19261: Added support for writing 24-bit samples in the sunau module.
 | 
						|
 | 
						|
- Issue #1097797: Added CP273 encoding, used on IBM mainframes in
 | 
						|
  Germany and Austria.  Mapping provided by Michael Bierenfeld.
 | 
						|
 | 
						|
- Issue #1575020: Fixed support of 24-bit wave files on big-endian platforms.
 | 
						|
 | 
						|
- Issue #19378: Fixed a number of cases in the dis module where the new
 | 
						|
  "file" parameter was not being honoured correctly
 | 
						|
 | 
						|
- Issue #19378: Removed the "dis.Bytecode.show_info" method
 | 
						|
 | 
						|
- Issue #19378: Renamed the "dis.Bytecode.display_code" method to
 | 
						|
  "dis.Bytecode.dis" and converted it to returning a string rather than
 | 
						|
  printing output.
 | 
						|
 | 
						|
- Issue #19378: the "line_offset" parameter in the new "dis.get_instructions"
 | 
						|
  API has been renamed to "first_line" (and the default value and usage
 | 
						|
  changed accordingly). This should reduce confusion with the more common use
 | 
						|
  of "offset" in the dis docs to refer to bytecode offsets.
 | 
						|
 | 
						|
- Issue #18678: Corrected spwd struct member names in spwd module:
 | 
						|
  sp_nam->sp_namp, and sp_pwd->sp_pwdp.  The old names are kept as extra
 | 
						|
  structseq members, for backward compatibility.
 | 
						|
 | 
						|
- Issue #6157: Fixed tkinter.Text.debug().  tkinter.Text.bbox() now raises
 | 
						|
  TypeError instead of TclError on wrong number of arguments.  Original patch
 | 
						|
  by Guilherme Polo.
 | 
						|
 | 
						|
- Issue #10197: Rework subprocess.get[status]output to use subprocess
 | 
						|
  functionality and thus to work on Windows. Patch by Nick Coghlan
 | 
						|
 | 
						|
- Issue #6160: The bbox() method of tkinter.Spinbox now returns a tuple of
 | 
						|
  integers instead of a string.  Based on patch by Guilherme Polo.
 | 
						|
 | 
						|
- Issue #19403: contextlib.redirect_stdout is now reentrant
 | 
						|
 | 
						|
- Issue #19286: Directories in ``package_data`` are no longer added to
 | 
						|
  the filelist, preventing failure outlined in the ticket.
 | 
						|
 | 
						|
- Issue #19480: HTMLParser now accepts all valid start-tag names as defined
 | 
						|
  by the HTML5 standard.
 | 
						|
 | 
						|
- Issue #15114: The html.parser module now raises a DeprecationWarning when the
 | 
						|
  strict argument of HTMLParser or the HTMLParser.error method are used.
 | 
						|
 | 
						|
- Issue #19410: Undo the special-casing removal of '' for
 | 
						|
  importlib.machinery.FileFinder.
 | 
						|
 | 
						|
- Issue #19424: Fix the warnings module to accept filename containing surrogate
 | 
						|
  characters.
 | 
						|
 | 
						|
- Issue #19435: Fix directory traversal attack on CGIHttpRequestHandler.
 | 
						|
 | 
						|
- Issue #19227: Remove pthread_atfork() handler. The handler was added to
 | 
						|
  solve #18747 but has caused issues.
 | 
						|
 | 
						|
- Issue #19420: Fix reference leak in module initalization code of
 | 
						|
  _hashopenssl.c
 | 
						|
 | 
						|
- Issue #19329: Optimized compiling charsets in regular expressions.
 | 
						|
 | 
						|
- Issue #19227: Try to fix deadlocks caused by re-seeding then OpenSSL
 | 
						|
  pseudo-random number generator on fork().
 | 
						|
 | 
						|
- Issue #16037: HTTPMessage.readheaders() raises an HTTPException when more than
 | 
						|
  100 headers are read.  Adapted from patch by Jyrki Pulliainen.
 | 
						|
 | 
						|
- Issue #16040: CVE-2013-1752: nntplib: Limit maximum line lengths to 2048 to
 | 
						|
  prevent readline() calls from consuming too much memory.  Patch by Jyrki
 | 
						|
  Pulliainen.
 | 
						|
 | 
						|
- Issue #16041: CVE-2013-1752: poplib: Limit maximum line lengths to 2048 to
 | 
						|
  prevent readline() calls from consuming too much memory.  Patch by Jyrki
 | 
						|
  Pulliainen.
 | 
						|
 | 
						|
- Issue #17997: Change behavior of ``ssl.match_hostname()`` to follow RFC 6125,
 | 
						|
  for security reasons.  It now doesn't match multiple wildcards nor wildcards
 | 
						|
  inside IDN fragments.
 | 
						|
 | 
						|
- Issue #16039: CVE-2013-1752: Change use of readline in imaplib module to limit
 | 
						|
  line length.  Patch by Emil Lind.
 | 
						|
 | 
						|
- Issue #19330: the unnecessary wrapper functions have been removed from the
 | 
						|
  implementations of the new contextlib.redirect_stdout and
 | 
						|
  contextlib.suppress context managers, which also ensures they provide
 | 
						|
  reasonable help() output on instances
 | 
						|
 | 
						|
- Issue #19393: Fix symtable.symtable function to not be confused when there are
 | 
						|
  functions or classes named "top".
 | 
						|
 | 
						|
- Issue #18685: Restore re performance to pre-PEP 393 levels.
 | 
						|
 | 
						|
- Issue #19339: telnetlib module is now using time.monotonic() when available
 | 
						|
  to compute timeout.
 | 
						|
 | 
						|
- Issue #19399: fix sporadic test_subprocess failure.
 | 
						|
 | 
						|
- Issue #13234: Fix os.listdir to work with extended paths on Windows.
 | 
						|
  Patch by Santoso Wijaya.
 | 
						|
 | 
						|
- Issue #19375: The site module adding a "site-python" directory to sys.path,
 | 
						|
  if it exists, is now deprecated.
 | 
						|
 | 
						|
- Issue #19379: Lazily import linecache in the warnings module, to make
 | 
						|
  startup with warnings faster until a warning gets printed.
 | 
						|
 | 
						|
- Issue #19288: Fixed the "in" operator of dbm.gnu databases for string
 | 
						|
  argument.  Original patch by Arfrever Frehtes Taifersar Arahesis.
 | 
						|
 | 
						|
- Issue #19287: Fixed the "in" operator of dbm.ndbm databases for string
 | 
						|
  argument.  Original patch by Arfrever Frehtes Taifersar Arahesis.
 | 
						|
 | 
						|
- Issue #19327: Fixed the working of regular expressions with too big charset.
 | 
						|
 | 
						|
- Issue #17400: New 'is_global' attribute for ipaddress to tell if an address
 | 
						|
  is allocated by IANA for global or private networks.
 | 
						|
 | 
						|
- Issue #19350: Increasing the test coverage of macurl2path. Patch by Colin
 | 
						|
  Williams.
 | 
						|
 | 
						|
- Issue #19365: Optimized the parsing of long replacement string in re.sub*()
 | 
						|
  functions.
 | 
						|
 | 
						|
- Issue #19352: Fix unittest discovery when a module can be reached
 | 
						|
  through several paths (e.g. under Debian/Ubuntu with virtualenv).
 | 
						|
 | 
						|
- Issue #15207: Fix mimetypes to read from correct part of Windows registry
 | 
						|
  Original patch by Dave Chambers
 | 
						|
 | 
						|
- Issue #16595: Add prlimit() to resource module.
 | 
						|
 | 
						|
- Issue #19324: Expose Linux-specific constants in resource module.
 | 
						|
 | 
						|
- Load SSL's error strings in hashlib.
 | 
						|
 | 
						|
- Issue #18527: Upgrade internal copy of zlib to 1.2.8.
 | 
						|
 | 
						|
- Issue #19274: Add a filterfunc parameter to PyZipFile.writepy.
 | 
						|
 | 
						|
- Issue #8964: fix platform._sys_version to handle IronPython 2.6+.
 | 
						|
  Patch by Martin Matusiak.
 | 
						|
 | 
						|
- Issue #19413: Restore pre-3.3 reload() semantics of re-finding modules.
 | 
						|
 | 
						|
- Issue #18958: Improve error message for json.load(s) while passing a string
 | 
						|
  that starts with a UTF-8 BOM.
 | 
						|
 | 
						|
- Issue #19307: Improve error message for json.load(s) while passing objects
 | 
						|
  of the wrong type.
 | 
						|
 | 
						|
- Issue #16038: CVE-2013-1752: ftplib: Limit amount of data read by
 | 
						|
  limiting the call to readline().  Original patch by Michał
 | 
						|
  Jastrzębski and Giampaolo Rodola.
 | 
						|
 | 
						|
- Issue #17087: Improved the repr for regular expression match objects.
 | 
						|
 | 
						|
Tests
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #19664: test_userdict's repr test no longer depends on the order
 | 
						|
  of dict elements.
 | 
						|
 | 
						|
- Issue #19440: Clean up test_capi by removing an unnecessary __future__
 | 
						|
  import, converting from test_main to unittest.main, and running the
 | 
						|
  _testcapi module tests as subTests of a unittest TestCase method.
 | 
						|
 | 
						|
- Issue #19378: the main dis module tests are now run with both stdout
 | 
						|
  redirection *and* passing an explicit file parameter
 | 
						|
 | 
						|
- Issue #19378: removed the not-actually-helpful assertInstructionMatches
 | 
						|
  and assertBytecodeExactlyMatches helpers from bytecode_helper
 | 
						|
 | 
						|
- Issue #18702: All skipped tests now reported as skipped.
 | 
						|
 | 
						|
- Issue #19439: interpreter embedding tests are now executed on Windows
 | 
						|
  (Patch by Zachary Ware)
 | 
						|
 | 
						|
- Issue #19085: Added basic tests for all tkinter widget options.
 | 
						|
 | 
						|
- Issue #19384: Fix test_py_compile for root user, patch by Claudiu Popa.
 | 
						|
 | 
						|
Documentation
 | 
						|
-------------
 | 
						|
 | 
						|
- Issue #18326: Clarify that list.sort's arguments are keyword-only.  Also,
 | 
						|
  attempt to reduce confusion in the glossary by not saying there are
 | 
						|
  different "types" of arguments and parameters.
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #19358: "make clinic" now runs the Argument Clinic preprocessor
 | 
						|
  over all CPython source files.
 | 
						|
 | 
						|
- Update SQLite to 3.8.1, xz to 5.0.5, and Tcl/Tk to 8.6.1 on Windows.
 | 
						|
 | 
						|
- Issue #16632: Enable DEP and ASLR on Windows.
 | 
						|
 | 
						|
- Issue #17791: Drop PREFIX and EXEC_PREFIX definitions from PC/pyconfig.h
 | 
						|
 | 
						|
- Add workaround for VS 2010 nmake clean issue. VS 2010 doesn't set up PATH
 | 
						|
  for nmake.exe correctly.
 | 
						|
 | 
						|
- Issue #19550: Implement Windows installer changes of PEP 453 (ensurepip).
 | 
						|
 | 
						|
- Issue #19520: Fix compiler warning in the _sha3 module on 32bit Windows.
 | 
						|
 | 
						|
- Issue #19356: Avoid using a C variabled named "_self", it's a reserved
 | 
						|
  word in some C compilers.
 | 
						|
 | 
						|
- Issue #15792: Correct build options on Win64. Patch by Jeremy Kloth.
 | 
						|
 | 
						|
- Issue #19373: Apply upstream change to Tk 8.5.15 fixing OS X 10.9
 | 
						|
  screen refresh problem for OS X installer build.
 | 
						|
 | 
						|
- Issue #19649: On OS X, the same set of file names are now installed
 | 
						|
  in bin directories for all configurations: non-framework vs framework,
 | 
						|
  and single arch vs universal builds.  pythonx.y-32 is now always
 | 
						|
  installed for 64-bit/32-bit universal builds.  The obsolete and
 | 
						|
  undocumented pythonw* symlinks are no longer installed anywhere.
 | 
						|
 | 
						|
- Issue #19553: PEP 453 - "make install" and "make altinstall" now install or
 | 
						|
  upgrade pip by default, using the bundled pip provided by the new ensurepip
 | 
						|
  module.  A new configure option, --with-ensurepip[=upgrade|install|no], is
 | 
						|
  available to override the default ensurepip "--upgrade" option.  The option
 | 
						|
  can also be set with "make [alt]install ENSUREPIP=[upgrade|install\no]".
 | 
						|
 | 
						|
- Issue #19551: PEP 453 - the OS X installer now installs pip by default.
 | 
						|
 | 
						|
- Update third-party libraries for OS X installers: xz 5.0.3 -> 5.0.5,
 | 
						|
  SQLite 3.7.13 -> 3.8.1
 | 
						|
 | 
						|
- Issue #15663: Revert OS X installer built-in Tcl/Tk support for 3.4.0b1.
 | 
						|
  Some third-party projects, such as Matplotlib and PIL/Pillow,
 | 
						|
  depended on being able to build with Tcl and Tk frameworks in
 | 
						|
  /Library/Frameworks.
 | 
						|
 | 
						|
Tools/Demos
 | 
						|
-----------
 | 
						|
 | 
						|
- Issue #19730: Argument Clinic now supports all the existing PyArg
 | 
						|
  "format units" as legacy converters, as well as two new features:
 | 
						|
  "self converters" and the "version" directive.
 | 
						|
 | 
						|
- Issue #19552: pyvenv now bootstraps pip into virtual environments by
 | 
						|
  default (pass --without-pip to request the old behaviour)
 | 
						|
 | 
						|
- Issue #19390: Argument Clinic no longer accepts malformed Python
 | 
						|
  and C ids.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.4.0 Alpha 4?
 | 
						|
===================================
 | 
						|
 | 
						|
Release date: 2013-10-20
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #19301: Give classes and functions that are explicitly marked global a
 | 
						|
  global qualname.
 | 
						|
 | 
						|
- Issue #19279: UTF-7 decoder no longer produces illegal strings.
 | 
						|
 | 
						|
- Issue #16612: Add "Argument Clinic", a compile-time preprocessor for
 | 
						|
  C files to generate argument parsing code.  (See PEP 436.)
 | 
						|
 | 
						|
- Issue #18810: Shift stat calls in importlib.machinery.FileFinder such that
 | 
						|
  the code is optimistic that if something exists in a directory named exactly
 | 
						|
  like the possible package being searched for that it's in actuality a
 | 
						|
  directory.
 | 
						|
 | 
						|
- Issue #18416: importlib.machinery.PathFinder now treats '' as the cwd and
 | 
						|
  importlib.machinery.FileFinder no longer special-cases '' to '.'. This leads
 | 
						|
  to modules imported from cwd to now possess an absolute file path for
 | 
						|
  __file__ (this does not affect modules specified by path on the CLI but it
 | 
						|
  does affect -m/runpy). It also allows FileFinder to be more consistent by not
 | 
						|
  having an edge case.
 | 
						|
 | 
						|
- Issue #4555: All exported C symbols are now prefixed with either
 | 
						|
  "Py" or "_Py".
 | 
						|
 | 
						|
- Issue #19219: Speed up marshal.loads(), and make pyc files slightly
 | 
						|
  (5% to 10%) smaller.
 | 
						|
 | 
						|
- Issue #19221: Upgrade Unicode database to version 6.3.0.
 | 
						|
 | 
						|
- Issue #16742: The result of the C callback PyOS_ReadlineFunctionPointer must
 | 
						|
  now be a string allocated by PyMem_RawMalloc() or PyMem_RawRealloc() (or NULL
 | 
						|
  if an error occurred), instead of a string allocated by PyMem_Malloc() or
 | 
						|
  PyMem_Realloc().
 | 
						|
 | 
						|
- Issue #19199: Remove ``PyThreadState.tick_counter`` field
 | 
						|
 | 
						|
- Fix macro expansion of _PyErr_OCCURRED(), and make sure to use it in at
 | 
						|
  least one place so as to avoid regressions.
 | 
						|
 | 
						|
- Issue #19087: Improve bytearray allocation in order to allow cheap popping
 | 
						|
  of data at the front (slice deletion).
 | 
						|
 | 
						|
- Issue #19014: memoryview.cast() is now allowed on zero-length views.
 | 
						|
 | 
						|
- Issue #18690: memoryview is now automatically registered with
 | 
						|
  collections.abc.Sequence
 | 
						|
 | 
						|
- Issue #19078: memoryview now correctly supports the reversed builtin
 | 
						|
  (Patch by Claudiu Popa)
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #17457: unittest test discovery now works with namespace packages.
 | 
						|
  Patch by Claudiu Popa.
 | 
						|
 | 
						|
- Issue #18235: Fix the sysconfig variables LDSHARED and BLDSHARED under AIX.
 | 
						|
  Patch by David Edelsohn.
 | 
						|
 | 
						|
- Issue #18606: Add the new "statistics" module (PEP 450).  Contributed
 | 
						|
  by Steven D'Aprano.
 | 
						|
 | 
						|
- Issue #12866: The audioop module now supports 24-bit samples.
 | 
						|
 | 
						|
- Issue #19254: Provide an optimized Python implementation of pbkdf2_hmac.
 | 
						|
 | 
						|
- Issues #19201, Issue #19222, Issue #19223: Add "x" mode (exclusive creation)
 | 
						|
  in opening file to bz2, gzip and lzma modules. Patches by Tim Heaney and
 | 
						|
  Vajrasky Kok.
 | 
						|
 | 
						|
- Fix a reference count leak in _sre.
 | 
						|
 | 
						|
- Issue #19262: Initial check in of the 'asyncio' package (a.k.a. Tulip,
 | 
						|
  a.k.a. PEP 3156).  There are no docs yet, and the PEP is slightly
 | 
						|
  out of date with the code.  This module will have *provisional* status
 | 
						|
  in Python 3.4.
 | 
						|
 | 
						|
- Issue #19276: Fixed the wave module on 64-bit big-endian platforms.
 | 
						|
 | 
						|
- Issue #19266: Rename the new-in-3.4 ``contextlib.ignore`` context manager
 | 
						|
  to ``contextlib.suppress`` in order to be more consistent with existing
 | 
						|
  descriptions of that operation elsewhere in the language and standard
 | 
						|
  library documentation (Patch by Zero Piraeus).
 | 
						|
 | 
						|
- Issue #18891: Completed the new email package (provisional) API additions
 | 
						|
  by adding new classes EmailMessage, MIMEPart, and ContentManager.
 | 
						|
 | 
						|
- Issue #18281: Unused stat constants removed from `tarfile`.
 | 
						|
 | 
						|
- Issue #18999: Multiprocessing now supports 'contexts' with the same API
 | 
						|
  as the module, but bound to specified start methods.
 | 
						|
 | 
						|
- Issue #18468: The re.split, re.findall, and re.sub functions and the group()
 | 
						|
  and groups() methods of match object now always return a string or a bytes
 | 
						|
  object.
 | 
						|
 | 
						|
- Issue #18725: The textwrap module now supports truncating multiline text.
 | 
						|
 | 
						|
- Issue #18776: atexit callbacks now display their full traceback when they
 | 
						|
  raise an exception.
 | 
						|
 | 
						|
- Issue #17827: Add the missing documentation for ``codecs.encode`` and
 | 
						|
  ``codecs.decode``.
 | 
						|
 | 
						|
- Issue #19218: Rename collections.abc to _collections_abc in order to
 | 
						|
  speed up interpreter start.
 | 
						|
 | 
						|
- Issue #18582: Add 'pbkdf2_hmac' to the hashlib module. It implements PKCS#5
 | 
						|
  password-based key derivation functions with HMAC as pseudorandom function.
 | 
						|
 | 
						|
- Issue #19131: The aifc module now correctly reads and writes sampwidth of
 | 
						|
  compressed streams.
 | 
						|
 | 
						|
- Issue #19209: Remove import of copyreg from the os module to speed up
 | 
						|
  interpreter startup. stat_result and statvfs_result are now hard-coded to
 | 
						|
  reside in the os module.
 | 
						|
 | 
						|
- Issue #19205: Don't import the 're' module in site and sysconfig module to
 | 
						|
  speed up interpreter start.
 | 
						|
 | 
						|
- Issue #9548: Add a minimal "_bootlocale" module that is imported by the
 | 
						|
  _io module instead of the full locale module.
 | 
						|
 | 
						|
- Issue #18764: Remove the 'print' alias for the PDB 'p' command so that it no
 | 
						|
  longer shadows the print function.
 | 
						|
 | 
						|
- Issue #19158: A rare race in BoundedSemaphore could allow .release() too
 | 
						|
  often.
 | 
						|
 | 
						|
- Issue #15805: Add contextlib.redirect_stdout().
 | 
						|
 | 
						|
- Issue #18716: Deprecate the formatter module.
 | 
						|
 | 
						|
- Issue #10712: 2to3 has a new "asserts" fixer that replaces deprecated names
 | 
						|
  of unittest methods (e.g. failUnlessEqual -> assertEqual).
 | 
						|
 | 
						|
- Issue #18037: 2to3 now escapes '\u' and '\U' in native strings.
 | 
						|
 | 
						|
- Issue #17839: base64.decodebytes and base64.encodebytes now accept any
 | 
						|
  object that exports a 1 dimensional array of bytes (this means the same
 | 
						|
  is now also true for base64_codec)
 | 
						|
 | 
						|
- Issue #19132: The pprint module now supports compact mode.
 | 
						|
 | 
						|
- Issue #19137: The pprint module now correctly formats instances of set and
 | 
						|
  frozenset subclasses.
 | 
						|
 | 
						|
- Issue #10042: functools.total_ordering now correctly handles
 | 
						|
  NotImplemented being returned by the underlying comparison function (Patch
 | 
						|
  by Katie Miller)
 | 
						|
 | 
						|
- Issue #19092: contextlib.ExitStack now correctly reraises exceptions
 | 
						|
  from the __exit__ callbacks of inner context managers (Patch by Hrvoje
 | 
						|
  Nikšić)
 | 
						|
 | 
						|
- Issue #12641: Avoid passing "-mno-cygwin" to the mingw32 compiler, except
 | 
						|
  when necessary.  Patch by Oscar Benjamin.
 | 
						|
 | 
						|
- Issue #5845: In site.py, only load readline history from ~/.python_history
 | 
						|
  if no history has been read already.  This avoids double writes to the
 | 
						|
  history file at shutdown.
 | 
						|
 | 
						|
- Properly initialize all fields of a SSL object after allocation.
 | 
						|
 | 
						|
- Issue #19095: SSLSocket.getpeercert() now raises ValueError when the
 | 
						|
  SSL handshake hasn't been done.
 | 
						|
 | 
						|
- Issue #4366: Fix building extensions on all platforms when --enable-shared
 | 
						|
  is used.
 | 
						|
 | 
						|
- Issue #19030: Fixed `inspect.getmembers` and `inspect.classify_class_attrs`
 | 
						|
  to attempt activating descriptors before falling back to a __dict__ search
 | 
						|
  for faulty descriptors.  `inspect.classify_class_attrs` no longer returns
 | 
						|
  Attributes whose home class is None.
 | 
						|
 | 
						|
C API
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #1772673: The type of `char*` arguments now changed to `const char*`.
 | 
						|
 | 
						|
- Issue #16129: Added a `Py_SetStandardStreamEncoding` pre-initialization API
 | 
						|
  to allow embedding applications like Blender to force a particular
 | 
						|
  encoding and error handler for the standard IO streams (initial patch by
 | 
						|
  Bastien Montagne)
 | 
						|
 | 
						|
Tests
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #19275: Fix test_site on AMD64 Snow Leopard
 | 
						|
 | 
						|
- Issue #14407: Fix unittest test discovery in test_concurrent_futures.
 | 
						|
 | 
						|
- Issue #18919: Unified and extended tests for audio modules: aifc, sunau and
 | 
						|
  wave.
 | 
						|
 | 
						|
- Issue #18714: Added tests for ``pdb.find_function()``.
 | 
						|
 | 
						|
Documentation
 | 
						|
-------------
 | 
						|
 | 
						|
- Issue #18758: Fixed and improved cross-references.
 | 
						|
 | 
						|
- Issue #18972: Modernize email examples and use the argparse module in them.
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #19130: Correct PCbuild/readme.txt, Python 3.3 and 3.4 require VS 2010.
 | 
						|
 | 
						|
- Issue #15663: Update OS X 10.6+ installer to use Tcl/Tk 8.5.15.
 | 
						|
 | 
						|
- Issue #14499: Fix several problems with OS X universal build support:
 | 
						|
    1. ppc arch detection for extension module builds broke with Xcode 5
 | 
						|
    2. ppc arch detection in configure did not work on OS X 10.4
 | 
						|
    3. -sysroot and -arch flags were unnecessarily duplicated
 | 
						|
    4. there was no obvious way to configure an intel-32 only build.
 | 
						|
 | 
						|
- Issue #19019: Change the OS X installer build script to use CFLAGS instead
 | 
						|
  of OPT for special build options.  By setting OPT, some compiler-specific
 | 
						|
  options like -fwrapv were overridden and thus not used, which could result
 | 
						|
  in broken interpreters when building with clang.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.4.0 Alpha 3?
 | 
						|
===================================
 | 
						|
 | 
						|
Release date: 2013-09-29
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #18818: The "encodingname" part of PYTHONIOENCODING is now optional.
 | 
						|
 | 
						|
- Issue #19098: Prevent overflow in the compiler when the recursion limit is set
 | 
						|
  absurdly high.
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #18929: `inspect.classify_class_attrs()` now correctly finds class
 | 
						|
  attributes returned by `dir()` that are located in the metaclass.
 | 
						|
 | 
						|
- Issue #18950: Fix miscellaneous bugs in the sunau module.
 | 
						|
  Au_read.readframes() now updates current file position and reads correct
 | 
						|
  number of frames from multichannel stream.  Au_write.writeframesraw() now
 | 
						|
  correctly updates current file position.  Au_read.getnframes() now returns an
 | 
						|
  integer (as in Python 2).  Au_read and Au_write now correctly works with file
 | 
						|
  object if start file position is not a zero.
 | 
						|
 | 
						|
- Issue #18594: The fast path for collections.Counter() was never taken
 | 
						|
  due to an over-restrictive type check.
 | 
						|
 | 
						|
- Issue #19053: ZipExtFile.read1() with non-zero argument no more returns empty
 | 
						|
  bytes until end of data.
 | 
						|
 | 
						|
- logging: added support for Unix domain sockets to SocketHandler and
 | 
						|
  DatagramHandler.
 | 
						|
 | 
						|
- Issue #18996: TestCase.assertEqual() now more cleverly shorten differing
 | 
						|
  strings in error report.
 | 
						|
 | 
						|
- Issue #19034: repr() for tkinter.Tcl_Obj now exposes string reperesentation.
 | 
						|
 | 
						|
- Issue #18978: ``urllib.request.Request`` now allows the method to be
 | 
						|
  indicated on the class and no longer sets it to None in ``__init__``.
 | 
						|
 | 
						|
- Issue #18626: the inspect module now offers a basic command line
 | 
						|
  introspection interface (Initial patch by Claudiu Popa)
 | 
						|
 | 
						|
- Issue #3015: Fixed tkinter with wantobject=False.  Any Tcl command call
 | 
						|
  returned empty string.
 | 
						|
 | 
						|
- Issue #19037: The mailbox module now makes all changes to maildir files
 | 
						|
  before moving them into place, to avoid race conditions with other programs
 | 
						|
  that may be accessing the maildir directory.
 | 
						|
 | 
						|
- Issue #14984: On POSIX systems, when netrc is called without a filename
 | 
						|
  argument (and therefore is reading the user's $HOME/.netrc file), it now
 | 
						|
  enforces the same security rules as typical ftp clients: the .netrc file must
 | 
						|
  be owned by the user that owns the process and must not be readable by any
 | 
						|
  other user.
 | 
						|
 | 
						|
- Issue #18873: The tokenize module now detects Python source code encoding
 | 
						|
  only in comment lines.
 | 
						|
 | 
						|
- Issue #17764: Enable http.server to bind to a user specified network
 | 
						|
  interface.  Patch contributed by Malte Swart.
 | 
						|
 | 
						|
- Issue #18937: Add an assertLogs() context manager to unittest.TestCase
 | 
						|
  to ensure that a block of code emits a message using the logging module.
 | 
						|
 | 
						|
- Issue #17324: Fix http.server's request handling case on trailing '/'. Patch
 | 
						|
  contributed by Vajrasky Kok.
 | 
						|
 | 
						|
- Issue #19018: The heapq.merge() function no longer suppresses IndexError
 | 
						|
  in the underlying iterables.
 | 
						|
 | 
						|
- Issue #18784: The uuid module no longer attempts to load libc via ctypes.CDLL
 | 
						|
  if all the necessary functions have already been found in libuuid.  Patch by
 | 
						|
  Evgeny Sologubov.
 | 
						|
 | 
						|
- The :envvar:`PYTHONFAULTHANDLER` environment variable now only enables the
 | 
						|
  faulthandler module if the variable is non-empty. Same behaviour than other
 | 
						|
  variables like :envvar:`PYTHONDONTWRITEBYTECODE`.
 | 
						|
 | 
						|
- Issue #1565525: New function ``traceback.clear_frames`` will clear
 | 
						|
  the local variables of all the stack frames referenced by a traceback
 | 
						|
  object.
 | 
						|
 | 
						|
Tests
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #18952: Fix regression in support data downloads introduced when
 | 
						|
  test.support was converted to a package. Regression noticed by Zachary
 | 
						|
  Ware.
 | 
						|
 | 
						|
IDLE
 | 
						|
----
 | 
						|
 | 
						|
- Issue #18873: IDLE now detects Python source code encoding only in comment
 | 
						|
  lines.
 | 
						|
 | 
						|
- Issue #18988: The "Tab" key now works when a word is already autocompleted.
 | 
						|
 | 
						|
Documentation
 | 
						|
-------------
 | 
						|
 | 
						|
- Issue #17003: Unified the size argument names in the io module with common
 | 
						|
  practice.
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #18596: Support the use of address sanity checking in recent versions
 | 
						|
  of clang and GCC by appropriately marking known false alarms in the small
 | 
						|
  object allocator. Patch contributed by Dhiru Kholia.
 | 
						|
 | 
						|
Tools/Demos
 | 
						|
-----------
 | 
						|
 | 
						|
- Issue #18873: 2to3 and the findnocoding.py script now detect Python source
 | 
						|
  code encoding only in comment lines.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.4.0 Alpha 2?
 | 
						|
===================================
 | 
						|
 | 
						|
Release date: 2013-09-09
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #18942: sys._debugmallocstats() output was damaged on Windows.
 | 
						|
 | 
						|
- Issue #18571: Implementation of the PEP 446: file descriptors and file
 | 
						|
  handles are now created non-inheritable; add functions
 | 
						|
  os.get/set_inheritable(), os.get/set_handle_inheritable() and
 | 
						|
  socket.socket.get/set_inheritable().
 | 
						|
 | 
						|
- Issue #11619: The parser and the import machinery do not encode Unicode
 | 
						|
  filenames anymore on Windows.
 | 
						|
 | 
						|
- Issue #18808: Non-daemon threads are now automatically joined when
 | 
						|
  a sub-interpreter is shutdown (it would previously dump a fatal error).
 | 
						|
 | 
						|
- Remove support for compiling on systems without getcwd().
 | 
						|
 | 
						|
- Issue #18774: Remove last bits of GNU PTH thread code and thread_pth.h.
 | 
						|
 | 
						|
- Issue #18771: Add optimization to set object lookups to reduce the cost
 | 
						|
  of hash collisions.  The core idea is to inspect a second key/hash pair
 | 
						|
  for each cache line retrieved.
 | 
						|
 | 
						|
- Issue #16105: When a signal handler fails to write to the file descriptor
 | 
						|
  registered with ``signal.set_wakeup_fd()``, report an exception instead
 | 
						|
  of ignoring the error.
 | 
						|
 | 
						|
- Issue #18722: Remove uses of the "register" keyword in C code.
 | 
						|
 | 
						|
- Issue #18667: Add missing "HAVE_FCHOWNAT" symbol to posix._have_functions.
 | 
						|
 | 
						|
- Issue #16499: Add command line option for isolated mode.
 | 
						|
 | 
						|
- Issue #15301: Parsing fd, uid, and gid parameters for builtins
 | 
						|
  in Modules/posixmodule.c is now far more robust.
 | 
						|
 | 
						|
- Issue #18368: PyOS_StdioReadline() no longer leaks memory when realloc()
 | 
						|
  fail.
 | 
						|
 | 
						|
- Issue #17934: Add a clear() method to frame objects, to help clean up
 | 
						|
  expensive details (local variables) and break reference cycles.
 | 
						|
 | 
						|
- Issue #18780: %-formatting codes %d, %i, and %u now treat int-subclasses
 | 
						|
  as int (displays value of int-subclass instead of str(int-subclass) ).
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #18808: Thread.join() now waits for the underlying thread state to
 | 
						|
  be destroyed before returning.  This prevents unpredictable aborts in
 | 
						|
  Py_EndInterpreter() when some non-daemon threads are still running.
 | 
						|
 | 
						|
- Issue #18458: Prevent crashes with newer versions of libedit.  Its readline
 | 
						|
  emulation has changed from 0-based indexing to 1-based like gnu readline.
 | 
						|
 | 
						|
- Issue #18852: Handle case of ``readline.__doc__`` being ``None`` in the new
 | 
						|
  readline activation code in ``site.py``.
 | 
						|
 | 
						|
- Issue #18672: Fixed format specifiers for Py_ssize_t in debugging output in
 | 
						|
  the _sre module.
 | 
						|
 | 
						|
- Issue #18830: inspect.getclasstree() no longer produces duplicate entries even
 | 
						|
  when input list contains duplicates.
 | 
						|
 | 
						|
- Issue #18878: sunau.open now supports the context management protocol.  Based on
 | 
						|
  patches by Claudiu Popa and R. David Murray.
 | 
						|
 | 
						|
- Issue #18909: Fix _tkinter.tkapp.interpaddr() on Windows 64-bit, don't cast
 | 
						|
  64-bit pointer to long (32 bits).
 | 
						|
 | 
						|
- Issue #18876: The FileIO.mode attribute now better reflects the actual mode
 | 
						|
  under which the file was opened.  Patch by Erik Bray.
 | 
						|
 | 
						|
- Issue #16853: Add new selectors module.
 | 
						|
 | 
						|
- Issue #18882: Add threading.main_thread() function.
 | 
						|
 | 
						|
- Issue #18901: The sunau getparams method now returns a namedtuple rather than
 | 
						|
  a plain tuple.  Patch by Claudiu Popa.
 | 
						|
 | 
						|
- Issue #17487: The result of the wave getparams method now is pickleable again.
 | 
						|
  Patch by Claudiu Popa.
 | 
						|
 | 
						|
- Issue #18756: os.urandom() now uses a lazily-opened persistent file
 | 
						|
  descriptor, so as to avoid using many file descriptors when run in
 | 
						|
  parallel from multiple threads.
 | 
						|
 | 
						|
- Issue #18418: After fork(), reinit all threads states, not only active ones.
 | 
						|
  Patch by A. Jesse Jiryu Davis.
 | 
						|
 | 
						|
- Issue #17974: Switch unittest from using getopt to using argparse.
 | 
						|
 | 
						|
- Issue #11798: TestSuite now drops references to own tests after execution.
 | 
						|
 | 
						|
- Issue #16611: http.cookie now correctly parses the 'secure' and 'httponly'
 | 
						|
  cookie flags.
 | 
						|
 | 
						|
- Issue #11973: Fix a problem in kevent. The flags and fflags fields are now
 | 
						|
  properly handled as unsigned.
 | 
						|
 | 
						|
- Issue #18807: ``pyvenv`` now takes a --copies argument allowing copies
 | 
						|
  instead of symlinks even where symlinks are available and the default.
 | 
						|
 | 
						|
- Issue #18538: ``python -m dis`` now uses argparse for argument processing.
 | 
						|
  Patch by Michele Orrù.
 | 
						|
 | 
						|
- Issue #18394: Close cgi.FieldStorage's optional file.
 | 
						|
 | 
						|
- Issue #17702: On error, os.environb now suppresses the exception context
 | 
						|
  when raising a new KeyError with the original key.
 | 
						|
 | 
						|
- Issue #16809: Fixed some tkinter incompabilities with Tcl/Tk 8.6.
 | 
						|
 | 
						|
- Issue #16809: Tkinter's splitlist() and split() methods now accept Tcl_Obj
 | 
						|
  argument.
 | 
						|
 | 
						|
- Issue #18324: set_payload now correctly handles binary input.  This also
 | 
						|
  supersedes the previous fixes for #14360, #1717, and #16564.
 | 
						|
 | 
						|
- Issue #18794: Add a fileno() method and a closed attribute to select.devpoll
 | 
						|
  objects.
 | 
						|
 | 
						|
- Issue #17119: Fixed integer overflows when processing large strings and tuples
 | 
						|
  in the tkinter module.
 | 
						|
 | 
						|
- Issue #18747: Re-seed OpenSSL's pseudo-random number generator after fork.
 | 
						|
  A pthread_atfork() parent handler is used to seed the PRNG with pid, time
 | 
						|
  and some stack data.
 | 
						|
 | 
						|
- Issue #8865: Concurrent invocation of select.poll.poll() now raises a
 | 
						|
  RuntimeError exception.  Patch by Christian Schubert.
 | 
						|
 | 
						|
- Issue #18777: The ssl module now uses the new CRYPTO_THREADID API of
 | 
						|
  OpenSSL 1.0.0+ instead of the deprecated CRYPTO id callback function.
 | 
						|
 | 
						|
- Issue #18768: Correct doc string of RAND_edg(). Patch by Vajrasky Kok.
 | 
						|
 | 
						|
- Issue #18178: Fix ctypes on BSD. dlmalloc.c was compiled twice which broke
 | 
						|
  malloc weak symbols.
 | 
						|
 | 
						|
- Issue #18709: Fix CVE-2013-4238. The SSL module now handles NULL bytes
 | 
						|
  inside subjectAltName correctly. Formerly the module has used OpenSSL's
 | 
						|
  GENERAL_NAME_print() function to get the string represention of ASN.1
 | 
						|
  strings for ``rfc822Name`` (email), ``dNSName`` (DNS) and
 | 
						|
  ``uniformResourceIdentifier`` (URI).
 | 
						|
 | 
						|
- Issue #18701: Remove support of old CPython versions (<3.0) from C code.
 | 
						|
 | 
						|
- Issue #18756: Improve error reporting in os.urandom() when the failure
 | 
						|
  is due to something else than /dev/urandom not existing (for example,
 | 
						|
  exhausting the file descriptor limit).
 | 
						|
 | 
						|
- Issue #18673: Add O_TMPFILE to os module. O_TMPFILE requires Linux kernel
 | 
						|
  3.11 or newer. It's only defined on system with 3.11 uapi headers, too.
 | 
						|
 | 
						|
- Issue #18532: Change the builtin hash algorithms' names to lower case names
 | 
						|
  as promised by hashlib's documentation.
 | 
						|
 | 
						|
- Issue #8713: add new spwan and forkserver start methods, and new functions
 | 
						|
  get_all_start_methods, get_start_method, and set_start_method, to
 | 
						|
  multiprocessing.
 | 
						|
 | 
						|
- Issue #18405: Improve the entropy of crypt.mksalt().
 | 
						|
 | 
						|
- Issue #12015: The tempfile module now uses a suffix of 8 random characters
 | 
						|
  instead of 6, to reduce the risk of filename collision. The entropy was
 | 
						|
  reduced when uppercase letters were removed from the charset used to generate
 | 
						|
  random characters.
 | 
						|
 | 
						|
- Issue #18585: Add :func:`textwrap.shorten` to collapse and truncate a
 | 
						|
  piece of text to a given length.
 | 
						|
 | 
						|
- Issue #18598: Tweak exception message for importlib.import_module() to
 | 
						|
  include the module name when a key argument is missing.
 | 
						|
 | 
						|
- Issue #19151: Fix docstring and use of _get_supported_file_loaders() to
 | 
						|
  reflect 2-tuples.
 | 
						|
 | 
						|
- Issue #19152: Add ExtensionFileLoader.get_filename().
 | 
						|
 | 
						|
- Issue #18676: Change 'positive' to 'non-negative' in queue.py put and get
 | 
						|
  docstrings and ValueError messages. Patch by Zhongyue Luo
 | 
						|
 | 
						|
- Fix refcounting issue with extension types in tkinter.
 | 
						|
 | 
						|
- Issue #8112: xlmrpc.server's DocXMLRPCServer server no longer raises an error
 | 
						|
  if methods have annotations; it now correctly displays the annotations.
 | 
						|
 | 
						|
- Issue #18600: Added policy argument to email.message.Message.as_string,
 | 
						|
  and as_bytes and __bytes__ methods to Message.
 | 
						|
 | 
						|
- Issue #18671: Output more information when logging exceptions occur.
 | 
						|
 | 
						|
- Issue #18621: Prevent the site module's patched builtins from keeping
 | 
						|
  too many references alive for too long.
 | 
						|
 | 
						|
- Issue #4885: Add weakref support to mmap objects.  Patch by Valerie Lambert.
 | 
						|
 | 
						|
- Issue #8860: Fixed rounding in timedelta constructor.
 | 
						|
 | 
						|
- Issue #18849: Fixed a Windows-specific tempfile bug where collision with an
 | 
						|
  existing directory caused mkstemp and related APIs to fail instead of
 | 
						|
  retrying. Report and fix by Vlad Shcherbina.
 | 
						|
 | 
						|
- Issue #18920: argparse's default destination for the version action (-v,
 | 
						|
  --version) has also been changed to stdout, to match the Python executable.
 | 
						|
 | 
						|
Tests
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #18623: Factor out the _SuppressCoreFiles context manager into
 | 
						|
  test.support.  Patch by Valerie Lambert.
 | 
						|
 | 
						|
- Issue #12037: Fix test_email for desktop Windows.
 | 
						|
 | 
						|
- Issue #15507: test_subprocess's test_send_signal could fail if the test
 | 
						|
  runner were run in an environment where the process inherited an ignore
 | 
						|
  setting for SIGINT.  Restore the SIGINT handler to the desired
 | 
						|
  KeyboardInterrupt raising one during that test.
 | 
						|
 | 
						|
- Issue #16799: Switched from getopt to argparse style in regrtest's argument
 | 
						|
  parsing.  Added more tests for regrtest's argument parsing.
 | 
						|
 | 
						|
- Issue #18792: Use "127.0.0.1" or "::1" instead of "localhost" as much as
 | 
						|
  possible, since "localhost" goes through a DNS lookup under recent Windows
 | 
						|
  versions.
 | 
						|
 | 
						|
IDLE
 | 
						|
----
 | 
						|
 | 
						|
- Issue #18489: Add tests for SearchEngine. Original patch by Phil Webster.
 | 
						|
 | 
						|
Documentation
 | 
						|
-------------
 | 
						|
 | 
						|
- Issue #18743: Fix references to non-existant "StringIO" module.
 | 
						|
 | 
						|
- Issue #18783: Removed existing mentions of Python long type in docstrings,
 | 
						|
  error messages and comments.
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #1584: Provide configure options to override default search paths for
 | 
						|
  Tcl and Tk when building _tkinter.
 | 
						|
 | 
						|
- Issue #15663: Tcl/Tk 8.5.14 is now included with the OS X 10.6+ 64-/32-bit
 | 
						|
  installer.  It is no longer necessary to install a third-party version of
 | 
						|
  Tcl/Tk 8.5 to work around the problems in the Apple-supplied Tcl/Tk 8.5
 | 
						|
  shipped in OS X 10.6 and later releases.
 | 
						|
 | 
						|
Tools/Demos
 | 
						|
-----------
 | 
						|
 | 
						|
- Issue #18922: Now The Lib/smtpd.py and Tools/i18n/msgfmt.py scripts write
 | 
						|
  their version strings to stdout, and not to sderr.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.4.0 Alpha 1?
 | 
						|
===================================
 | 
						|
 | 
						|
Release date: 2013-08-03
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #16741: Fix an error reporting in int().
 | 
						|
 | 
						|
- Issue #17899: Fix rare file descriptor leak in os.listdir().
 | 
						|
 | 
						|
- Issue #10241: Clear extension module dict copies at interpreter shutdown.
 | 
						|
  Patch by Neil Schemenauer, minimally modified.
 | 
						|
 | 
						|
- Issue #9035: ismount now recognises volumes mounted below a drive root
 | 
						|
  on Windows. Original patch by Atsuo Ishimoto.
 | 
						|
 | 
						|
- Issue #18214: Improve finalization of Python modules to avoid setting
 | 
						|
  their globals to None, in most cases.
 | 
						|
 | 
						|
- Issue #18112: PEP 442 implementation (safe object finalization).
 | 
						|
 | 
						|
- Issue #18552: Check return value of PyArena_AddPyObject() in
 | 
						|
  obj2ast_object().
 | 
						|
 | 
						|
- Issue #18560: Fix potential NULL pointer dereference in sum().
 | 
						|
 | 
						|
- Issue #18520: Add a new PyStructSequence_InitType2() function, same than
 | 
						|
  PyStructSequence_InitType() except that it has a return value (0 on success,
 | 
						|
  -1 on error).
 | 
						|
 | 
						|
- Issue #15905: Fix theoretical buffer overflow in handling of sys.argv[0],
 | 
						|
  prefix and exec_prefix if the operation system does not obey MAXPATHLEN.
 | 
						|
 | 
						|
- Issue #18408: Fix many various bugs in code handling errors, especially
 | 
						|
  on memory allocation failure (MemoryError).
 | 
						|
 | 
						|
- Issue #18344: Fix potential ref-leaks in _bufferedreader_read_all().
 | 
						|
 | 
						|
- Issue #18342: Use the repr of a module name when an import fails when using
 | 
						|
  ``from ... import ...``.
 | 
						|
 | 
						|
- Issue #17872: Fix a segfault in marshal.load() when input stream returns
 | 
						|
  more bytes than requested.
 | 
						|
 | 
						|
- Issue #18338: `python --version` now prints version string to stdout, and
 | 
						|
  not to stderr.  Patch by Berker Peksag and Michael Dickens.
 | 
						|
 | 
						|
- Issue #18426: Fix NULL pointer dereference in C extension import when
 | 
						|
  PyModule_GetDef() returns an error.
 | 
						|
 | 
						|
- Issue #17206: On Windows, increase the stack size from 2 MB to 4.2 MB to fix
 | 
						|
  a stack overflow in the marshal module (fix a crash in test_marshal).
 | 
						|
  Patch written by Jeremy Kloth.
 | 
						|
 | 
						|
- Issue #3329: Implement the PEP 445: Add new APIs to customize Python memory
 | 
						|
  allocators.
 | 
						|
 | 
						|
- Issue #18328: Reorder ops in PyThreadState_Delete*() functions. Now the
 | 
						|
  tstate is first removed from TLS and then deallocated.
 | 
						|
 | 
						|
- Issue #13483: Use VirtualAlloc in obmalloc on Windows.
 | 
						|
 | 
						|
- Issue #18184: PyUnicode_FromFormat() and PyUnicode_FromFormatV() now raise
 | 
						|
  OverflowError when an argument of %c format is out of range.
 | 
						|
 | 
						|
- Issue #18111: The min() and max() functions now support a default argument
 | 
						|
  to be returned instead of raising a ValueError on an empty sequence.
 | 
						|
  (Contributed by Julian Berman.)
 | 
						|
 | 
						|
- Issue #18137: Detect integer overflow on precision in float.__format__()
 | 
						|
  and complex.__format__().
 | 
						|
 | 
						|
- Issue #18183: Fix various unicode operations on strings with large unicode
 | 
						|
  codepoints.
 | 
						|
 | 
						|
- Issue #18180: Fix ref leak in _PyImport_GetDynLoadWindows().
 | 
						|
 | 
						|
- Issue #18038: SyntaxError raised during compilation sources with illegal
 | 
						|
  encoding now always contains an encoding name.
 | 
						|
 | 
						|
- Issue #17931: Resolve confusion on Windows between pids and process
 | 
						|
  handles.
 | 
						|
 | 
						|
- Tweak the exception message when the magic number or size value in a bytecode
 | 
						|
  file is truncated.
 | 
						|
 | 
						|
- Issue #17932: Fix an integer overflow issue on Windows 64-bit in iterators:
 | 
						|
  change the C type of seqiterobject.it_index from long to Py_ssize_t.
 | 
						|
 | 
						|
- Issue #18065: Don't set __path__ to the package name for frozen packages.
 | 
						|
 | 
						|
- Issue #18088: When reloading a module, unconditionally reset all relevant
 | 
						|
  attributes on the module (e.g. __name__, __loader__, __package__, __file__,
 | 
						|
  __cached__).
 | 
						|
 | 
						|
- Issue #17937: Try harder to collect cyclic garbage at shutdown.
 | 
						|
 | 
						|
- Issue #12370: Prevent class bodies from interfering with the __class__
 | 
						|
  closure.
 | 
						|
 | 
						|
- Issue #17644: Fix a crash in str.format when curly braces are used in square
 | 
						|
  brackets.
 | 
						|
 | 
						|
- Issue #17237: Fix crash in the ASCII decoder on m68k.
 | 
						|
 | 
						|
- Issue #17927: Frame objects kept arguments alive if they had been
 | 
						|
  copied into a cell, even if the cell was cleared.
 | 
						|
 | 
						|
- Issue #1545463: At shutdown, defer finalization of codec modules so
 | 
						|
  that stderr remains usable.
 | 
						|
 | 
						|
- Issue #7330: Implement width and precision (ex: "%5.3s") for the format
 | 
						|
  string of PyUnicode_FromFormat() function, original patch written by Ysj Ray.
 | 
						|
 | 
						|
- Issue #1545463: Global variables caught in reference cycles are now
 | 
						|
  garbage-collected at shutdown.
 | 
						|
 | 
						|
- Issue #17094: Clear stale thread states after fork().  Note that this
 | 
						|
  is a potentially disruptive change since it may release some system
 | 
						|
  resources which would otherwise remain perpetually alive (e.g. database
 | 
						|
  connections kept in thread-local storage).
 | 
						|
 | 
						|
- Issue #17408: Avoid using an obsolete instance of the copyreg module when
 | 
						|
  the interpreter is shutdown and then started again.
 | 
						|
 | 
						|
- Issue #5845: Enable tab-completion in the interactive interpreter by
 | 
						|
  default, thanks to a new sys.__interactivehook__.
 | 
						|
 | 
						|
- Issue #17115,17116: Module initialization now includes setting __package__ and
 | 
						|
  __loader__ attributes to None.
 | 
						|
 | 
						|
- Issue #17853: Ensure locals of a class that shadow free variables always win
 | 
						|
  over the closures.
 | 
						|
 | 
						|
- Issue #17863: In the interactive console, don't loop forever if the encoding
 | 
						|
  can't be fetched from stdin.
 | 
						|
 | 
						|
- Issue #17867: Raise an ImportError if __import__ is not found in __builtins__.
 | 
						|
 | 
						|
- Issue #18698: Ensure importlib.reload() returns the module out of sys.modules.
 | 
						|
 | 
						|
- Issue #17857: Prevent build failures with pre-3.5.0 versions of sqlite3,
 | 
						|
  such as was shipped with Centos 5 and Mac OS X 10.4.
 | 
						|
 | 
						|
- Issue #17413: sys.settrace callbacks were being passed a string instead of an
 | 
						|
  exception instance for the 'value' element of the arg tuple if the exception
 | 
						|
  originated from C code; now an exception instance is always provided.
 | 
						|
 | 
						|
- Issue #17782: Fix undefined behaviour on platforms where
 | 
						|
  ``struct timespec``'s "tv_nsec" member is not a C long.
 | 
						|
 | 
						|
- Issue #17722: When looking up __round__, resolve descriptors.
 | 
						|
 | 
						|
- Issue #16061: Speed up str.replace() for replacing 1-character strings.
 | 
						|
 | 
						|
- Issue #17715: Fix segmentation fault from raising an exception in a __trunc__
 | 
						|
  method.
 | 
						|
 | 
						|
- Issue #17643: Add __callback__ attribute to weakref.ref.
 | 
						|
 | 
						|
- Issue #16447: Fixed potential segmentation fault when setting __name__ on a
 | 
						|
  class.
 | 
						|
 | 
						|
- Issue #17669: Fix crash involving finalization of generators using yield from.
 | 
						|
 | 
						|
- Issue #14439: Python now prints the traceback on runpy failure at startup.
 | 
						|
 | 
						|
- Issue #17469: Fix _Py_GetAllocatedBlocks() and sys.getallocatedblocks()
 | 
						|
  when running on valgrind.
 | 
						|
 | 
						|
- Issue #17619: Make input() check for Ctrl-C correctly on Windows.
 | 
						|
 | 
						|
- Issue #17357: Add missing verbosity messages for -v/-vv that were lost during
 | 
						|
  the importlib transition.
 | 
						|
 | 
						|
- Issue #17610: Don't rely on non-standard behavior of the C qsort() function.
 | 
						|
 | 
						|
- Issue #17323: The "[X refs, Y blocks]" printed by debug builds has been
 | 
						|
  disabled by default.  It can be re-enabled with the `-X showrefcount` option.
 | 
						|
 | 
						|
- Issue #17328: Fix possible refleak in dict.setdefault.
 | 
						|
 | 
						|
- Issue #17275: Corrected class name in init error messages of the C version of
 | 
						|
  BufferedWriter and BufferedRandom.
 | 
						|
 | 
						|
- Issue #7963: Fixed misleading error message that issued when object is
 | 
						|
  called without arguments.
 | 
						|
 | 
						|
- Issue #8745: Small speed up zipimport on Windows. Patch by Catalin Iacob.
 | 
						|
 | 
						|
- Issue #5308: Raise ValueError when marshalling too large object (a sequence
 | 
						|
  with size >= 2**31), instead of producing illegal marshal data.
 | 
						|
 | 
						|
- Issue #12983: Bytes literals with invalid \x escape now raise a SyntaxError
 | 
						|
  and a full traceback including line number.
 | 
						|
 | 
						|
- Issue #16967: In function definition, evaluate positional defaults before
 | 
						|
  keyword-only defaults.
 | 
						|
 | 
						|
- Issue #17173: Remove uses of locale-dependent C functions (isalpha() etc.)
 | 
						|
  in the interpreter.
 | 
						|
 | 
						|
- Issue #17137: When an Unicode string is resized, the internal wide character
 | 
						|
  string (wstr) format is now cleared.
 | 
						|
 | 
						|
- Issue #17043: The unicode-internal decoder no longer read past the end of
 | 
						|
  input buffer.
 | 
						|
 | 
						|
- Issue #17098: All modules now have __loader__ set even if they pre-exist the
 | 
						|
  bootstrapping of importlib.
 | 
						|
 | 
						|
- Issue #16979: Fix error handling bugs in the unicode-escape-decode decoder.
 | 
						|
 | 
						|
- Issue #16772: The base argument to the int constructor no longer accepts
 | 
						|
  floats, or other non-integer objects with an __int__ method.  Objects
 | 
						|
  with an __index__ method are now accepted.
 | 
						|
 | 
						|
- Issue #10156: In the interpreter's initialization phase, unicode globals
 | 
						|
  are now initialized dynamically as needed.
 | 
						|
 | 
						|
- Issue #16980: Fix processing of escaped non-ascii bytes in the
 | 
						|
  unicode-escape-decode decoder.
 | 
						|
 | 
						|
- Issue #16975: Fix error handling bug in the escape-decode bytes decoder.
 | 
						|
 | 
						|
- Issue #14850: Now a charmap decoder treats U+FFFE as "undefined mapping"
 | 
						|
  in any mapping, not only in a string.
 | 
						|
 | 
						|
- Issue #16613: Add *m* argument to ``collections.Chainmap.new_child`` to
 | 
						|
  allow the new child map to be specified explicitly.
 | 
						|
 | 
						|
- Issue #16730: importlib.machinery.FileFinder now no longers raises an
 | 
						|
  exception when trying to populate its cache and it finds out the directory is
 | 
						|
  unreadable or has turned into a file. Reported and diagnosed by
 | 
						|
  David Pritchard.
 | 
						|
 | 
						|
- Issue #16906: Fix a logic error that prevented most static strings from being
 | 
						|
  cleared.
 | 
						|
 | 
						|
- Issue #11461: Fix the incremental UTF-16 decoder. Original patch by
 | 
						|
  Amaury Forgeot d'Arc.
 | 
						|
 | 
						|
- Issue #16856: Fix a segmentation fault from calling repr() on a dict with
 | 
						|
  a key whose repr raise an exception.
 | 
						|
 | 
						|
- Issue #16367: Fix FileIO.readall() on Windows for files larger than 2 GB.
 | 
						|
 | 
						|
- Issue #16761: Calling int() with base argument only now raises TypeError.
 | 
						|
 | 
						|
- Issue #16759: Support the full DWORD (unsigned long) range in Reg2Py
 | 
						|
  when retrieving a REG_DWORD value. This corrects functions like
 | 
						|
  winreg.QueryValueEx that may have been returning truncated values.
 | 
						|
 | 
						|
- Issue #14420: Support the full DWORD (unsigned long) range in Py2Reg
 | 
						|
  when passed a REG_DWORD value. Fixes OverflowError in winreg.SetValueEx.
 | 
						|
 | 
						|
- Issue #11939: Set the st_dev attribute of stat_result to allow Windows to
 | 
						|
  take advantage of the os.path.samefile/sameopenfile/samestat implementations
 | 
						|
  used by other platforms.
 | 
						|
 | 
						|
- Issue #16772: The int() constructor's second argument (base) no longer
 | 
						|
  accepts non integer values.  Consistent with the behavior in Python 2.
 | 
						|
 | 
						|
- Issue #14470: Remove w9xpopen support per PEP 11.
 | 
						|
 | 
						|
- Issue #9856: Replace deprecation warning with raising TypeError
 | 
						|
  in object.__format__. Patch by Florent Xicluna.
 | 
						|
 | 
						|
- Issue #16597: In buffered and text IO, call close() on the underlying stream
 | 
						|
  if invoking flush() fails.
 | 
						|
 | 
						|
- Issue #16722: In the bytes() constructor, try to call __bytes__ on the
 | 
						|
  argument before __index__.
 | 
						|
 | 
						|
- Issue #16421: loading multiple modules from one shared object is now
 | 
						|
  handled correctly (previously, the first module loaded from that file
 | 
						|
  was silently returned). Patch by Václav Šmilauer.
 | 
						|
 | 
						|
- Issue #16602: When a weakref's target was part of a long deallocation
 | 
						|
  chain, the object could remain reachable through its weakref even though
 | 
						|
  its refcount had dropped to zero.
 | 
						|
 | 
						|
- Issue #16495: Remove extraneous NULL encoding check from bytes_decode().
 | 
						|
 | 
						|
- Issue #16619: Create NameConstant AST class to represent None, True, and False
 | 
						|
  literals. As a result, these constants are never loaded at runtime from
 | 
						|
  builtins.
 | 
						|
 | 
						|
- Issue #16455: On FreeBSD and Solaris, if the locale is C, the
 | 
						|
  ASCII/surrogateescape codec is now used (instead of the locale encoding) to
 | 
						|
  decode the command line arguments. This change fixes inconsistencies with
 | 
						|
  os.fsencode() and os.fsdecode(), because these operating systems announce an
 | 
						|
  ASCII locale encoding, but actually use the ISO-8859-1 encoding in practice.
 | 
						|
 | 
						|
- Issue #16562: Optimize dict equality testing.  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #16588: Silence unused-but-set warnings in Python/thread_pthread
 | 
						|
 | 
						|
- Issue #16592: stringlib_bytes_join doesn't raise MemoryError on allocation
 | 
						|
  failure.
 | 
						|
 | 
						|
- Issue #16546: Fix: ast.YieldFrom argument is now mandatory.
 | 
						|
 | 
						|
- Issue #16514: Fix regression causing a traceback when sys.path[0] is None
 | 
						|
  (actually, any non-string or non-bytes type).
 | 
						|
 | 
						|
- Issue #16306: Fix multiple error messages when unknown command line
 | 
						|
  parameters where passed to the interpreter.  Patch by Hieu Nguyen.
 | 
						|
 | 
						|
- Issue #16215: Fix potential double memory free in str.replace().  Patch
 | 
						|
  by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #16290: A float return value from the __complex__ special method is no
 | 
						|
  longer accepted in the complex() constructor.
 | 
						|
 | 
						|
- Issue #16416: On Mac OS X, operating system data are now always
 | 
						|
  encoded/decoded to/from UTF-8/surrogateescape, instead of the locale encoding
 | 
						|
  (which may be ASCII if no locale environment variable is set), to avoid
 | 
						|
  inconsistencies with os.fsencode() and os.fsdecode() functions which are
 | 
						|
  already using UTF-8/surrogateescape.
 | 
						|
 | 
						|
- Issue #16453: Fix equality testing of dead weakref objects.
 | 
						|
 | 
						|
- Issue #9535: Fix pending signals that have been received but not yet
 | 
						|
  handled by Python to not persist after os.fork() in the child process.
 | 
						|
 | 
						|
- Issue #14794: Fix slice.indices to return correct results for huge values,
 | 
						|
  rather than raising OverflowError.
 | 
						|
 | 
						|
- Issue #15001: fix segfault on "del sys.modules['__main__']". Patch by Victor
 | 
						|
  Stinner.
 | 
						|
 | 
						|
- Issue #8271: the utf-8 decoder now outputs the correct number of U+FFFD
 | 
						|
  characters when used with the 'replace' error handler on invalid utf-8
 | 
						|
  sequences.  Patch by Serhiy Storchaka, tests by Ezio Melotti.
 | 
						|
 | 
						|
- Issue #5765: Apply a hard recursion limit in the compiler instead of
 | 
						|
  blowing the stack and segfaulting. Initial patch by Andrea Griffini.
 | 
						|
 | 
						|
- Issue #16402: When slicing a range, fix shadowing of exceptions from
 | 
						|
  __index__.
 | 
						|
 | 
						|
- Issue #16336: fix input checking in the surrogatepass error handler.
 | 
						|
  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #8401: assigning an int to a bytearray slice (e.g. b[3:4] = 5) now
 | 
						|
  raises an error.
 | 
						|
 | 
						|
- Issue #7317: Display full tracebacks when an error occurs asynchronously.
 | 
						|
  Patch by Alon Horev with update by Alexey Kachayev.
 | 
						|
 | 
						|
- Issue #16309: Make PYTHONPATH="" behavior the same as if PYTHONPATH
 | 
						|
  not set at all.
 | 
						|
 | 
						|
- Issue #10189: Improve the error reporting of SyntaxErrors related to global
 | 
						|
  and nonlocal statements.
 | 
						|
 | 
						|
- Fix segfaults on setting __qualname__ on builtin types and attempting to
 | 
						|
  delete it on any type.
 | 
						|
 | 
						|
- Issue #14625: Rewrite the UTF-32 decoder. It is now 3x to 4x faster. Patch
 | 
						|
  written by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #16345: Fix an infinite loop when ``fromkeys`` on a dict subclass
 | 
						|
  received a nonempty dict from the constructor.
 | 
						|
 | 
						|
- Issue #16271: Fix strange bugs that resulted from __qualname__ appearing in a
 | 
						|
  class's __dict__ and on type.
 | 
						|
 | 
						|
- Issue #12805: Make bytes.join and bytearray.join faster when the separator
 | 
						|
  is empty.  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #6074: Ensure cached bytecode files can always be updated by the
 | 
						|
  user that created them, even when the source file is read-only.
 | 
						|
 | 
						|
- Issue #15958: bytes.join and bytearray.join now accept arbitrary buffer
 | 
						|
  objects.
 | 
						|
 | 
						|
- Issue #14783: Improve int() docstring and switch docstrings for str(),
 | 
						|
  range(), and slice() to use multi-line signatures.
 | 
						|
 | 
						|
- Issue #16160: Subclass support now works for types.SimpleNamespace.
 | 
						|
 | 
						|
- Issue #16148: Implement PEP 424, adding operator.length_hint and
 | 
						|
  PyObject_LengthHint.
 | 
						|
 | 
						|
- Upgrade Unicode data (UCD) to version 6.2.
 | 
						|
 | 
						|
- Issue #15379: Fix passing of non-BMP characters as integers for the charmap
 | 
						|
  decoder (already working as unicode strings).  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #15144: Fix possible integer overflow when handling pointers as integer
 | 
						|
  values, by using `Py_uintptr_t` instead of `size_t`.  Patch by Serhiy
 | 
						|
  Storchaka.
 | 
						|
 | 
						|
- Issue #15965: Explicitly cast `AT_FDCWD` as (int).  Required on Solaris 10
 | 
						|
  (which defines `AT_FDCWD` as ``0xffd19553``), harmless on other platforms.
 | 
						|
 | 
						|
- Issue #15839: Convert SystemErrors in `super()` to RuntimeErrors.
 | 
						|
 | 
						|
- Issue #15448: Buffered IO now frees the buffer when closed, instead
 | 
						|
  of when deallocating.
 | 
						|
 | 
						|
- Issue #15846: Fix SystemError which happened when using `ast.parse()` in an
 | 
						|
  exception handler on code with syntax errors.
 | 
						|
 | 
						|
- Issue #15897: zipimport.c doesn't check return value of fseek().
 | 
						|
  Patch by Felipe Cruz.
 | 
						|
 | 
						|
- Issue #15801: Make sure mappings passed to '%' formatting are actually
 | 
						|
  subscriptable.
 | 
						|
 | 
						|
- Issue #15111: __import__ should propagate ImportError when raised as a
 | 
						|
  side-effect of a module triggered from using fromlist.
 | 
						|
 | 
						|
- Issue #15022: Add pickle and comparison support to types.SimpleNamespace.
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #4331: Added functools.partialmethod (Initial patch by Alon Horev)
 | 
						|
 | 
						|
- Issue #13461: Fix a crash in the TextIOWrapper.tell method on 64-bit
 | 
						|
  platforms.  Patch by Yogesh Chaudhari.
 | 
						|
 | 
						|
- Issue #18681: Fix a NameError in importlib.reload() (noticed by Weizhao Li).
 | 
						|
 | 
						|
- Issue #14323: Expanded the number of digits in the coefficients for the
 | 
						|
  RGB -- YIQ conversions so that they match the FCC NTSC versions.
 | 
						|
 | 
						|
- Issue #17998: Fix an internal error in regular expression engine.
 | 
						|
 | 
						|
- Issue #17557: Fix os.getgroups() to work with the modified behavior of
 | 
						|
  getgroups(2) on OS X 10.8.  Original patch by Mateusz Lenik.
 | 
						|
 | 
						|
- Issue #18608: Avoid keeping a strong reference to the locale module
 | 
						|
  inside the _io module.
 | 
						|
 | 
						|
- Issue #18619: Fix atexit leaking callbacks registered from sub-interpreters,
 | 
						|
  and make it GC-aware.
 | 
						|
 | 
						|
- Issue #15699: The readline module now uses PEP 3121-style module
 | 
						|
  initialization, so as to reclaim allocated resources (Python callbacks)
 | 
						|
  at shutdown.  Original patch by Robin Schreiber.
 | 
						|
 | 
						|
- Issue #17616: wave.open now supports the context management protocol.
 | 
						|
 | 
						|
- Issue #18599: Fix name attribute of _sha1.sha1() object. It now returns
 | 
						|
  'SHA1' instead of 'SHA'.
 | 
						|
 | 
						|
- Issue #13266: Added inspect.unwrap to easily unravel __wrapped__ chains
 | 
						|
  (initial patch by Daniel Urban and Aaron Iles)
 | 
						|
 | 
						|
- Issue #18561: Skip name in ctypes' _build_callargs() if name is NULL.
 | 
						|
 | 
						|
- Issue #18559: Fix NULL pointer dereference error in _pickle module
 | 
						|
 | 
						|
- Issue #18556: Check the return type of PyUnicode_AsWideChar() in ctype's
 | 
						|
  U_set().
 | 
						|
 | 
						|
- Issue #17818: aifc.getparams now returns a namedtuple.
 | 
						|
 | 
						|
- Issue #18549: Eliminate dead code in socket_ntohl()
 | 
						|
 | 
						|
- Issue #18530: Remove additional stat call from posixpath.ismount.
 | 
						|
  Patch by Alex Gaynor.
 | 
						|
 | 
						|
- Issue #18514: Fix unreachable Py_DECREF() call in PyCData_FromBaseObj()
 | 
						|
 | 
						|
- Issue #9177: Calling read() or write() now raises ValueError, not
 | 
						|
  AttributeError, on a closed SSL socket.  Patch by Senko Rasic.
 | 
						|
 | 
						|
- Issue #18513: Fix behaviour of cmath.rect w.r.t. signed zeros on OS X 10.8 +
 | 
						|
  gcc.
 | 
						|
 | 
						|
- Issue #18479: Changed venv Activate.ps1 to make deactivate a function, and
 | 
						|
  removed Deactivate.ps1.
 | 
						|
 | 
						|
- Issue #18480: Add missing call to PyType_Ready to the _elementtree extension.
 | 
						|
 | 
						|
- Issue #17778: Fix test discovery for test_multiprocessing. (Patch by
 | 
						|
  Zachary Ware.)
 | 
						|
 | 
						|
- Issue #18393: The private module _gestalt and private functions
 | 
						|
  platform._mac_ver_gestalt, platform._mac_ver_lookup and
 | 
						|
  platform._bcd2str have been removed. This does not affect the public
 | 
						|
  interface of the platform module.
 | 
						|
 | 
						|
- Issue #17482: functools.update_wrapper (and functools.wraps) now set the
 | 
						|
  __wrapped__ attribute correctly even if the underlying function has a
 | 
						|
  __wrapped__ attribute set.
 | 
						|
 | 
						|
- Issue #18431: The new email header parser now decodes RFC2047 encoded words
 | 
						|
  in structured headers.
 | 
						|
 | 
						|
- Issue #18432: The sched module's queue method was incorrectly returning
 | 
						|
  an iterator instead of a list.
 | 
						|
 | 
						|
- Issue #18044: The new email header parser was mis-parsing encoded words where
 | 
						|
  an encoded character immediately followed the '?' that follows the CTE
 | 
						|
  character, resulting in a decoding failure.  They are now decoded correctly.
 | 
						|
 | 
						|
- Issue #18101: Tcl.split() now process strings nested in a tuple as it
 | 
						|
  do with byte strings.
 | 
						|
 | 
						|
- Issue #18116: getpass was always getting an error when testing /dev/tty,
 | 
						|
  and thus was always falling back to stdin, and would then raise an exception
 | 
						|
  if stdin could not be used (such as /dev/null).  It also leaked an open file.
 | 
						|
  All of these issues are now fixed.
 | 
						|
 | 
						|
- Issue #17198: Fix a NameError in the dbm module.  Patch by Valentina
 | 
						|
  Mukhamedzhanova.
 | 
						|
 | 
						|
- Issue #18013: Fix cgi.FieldStorage to parse the W3C sample form.
 | 
						|
 | 
						|
- Issue #18020: improve html.escape speed by an order of magnitude.
 | 
						|
  Patch by Matt Bryant.
 | 
						|
 | 
						|
- Issue #18347: ElementTree's html serializer now preserves the case of
 | 
						|
  closing tags.
 | 
						|
 | 
						|
- Issue #17261: Ensure multiprocessing's proxies use proper address.
 | 
						|
 | 
						|
- Issue #18343: faulthandler.register() now keeps the previous signal handler
 | 
						|
  when the function is called twice, so faulthandler.unregister() restores
 | 
						|
  correctly the original signal handler.
 | 
						|
 | 
						|
- Issue #17097: Make multiprocessing ignore EINTR.
 | 
						|
 | 
						|
- Issue #18339: Negative ints keys in unpickler.memo dict no longer cause a
 | 
						|
  segfault inside the _pickle C extension.
 | 
						|
 | 
						|
- Issue #18240: The HMAC module is no longer restricted to bytes and accepts
 | 
						|
  any bytes-like object, e.g. memoryview. Original patch by Jonas Borgström.
 | 
						|
 | 
						|
- Issue #18224: Removed pydoc script from created venv, as it causes problems
 | 
						|
  on Windows and adds no value over and above python -m pydoc ...
 | 
						|
 | 
						|
- Issue #18155: The csv module now correctly handles csv files that use
 | 
						|
  a delimter character that has a special meaning in regexes, instead of
 | 
						|
  throwing an exception.
 | 
						|
 | 
						|
- Issue #14360: encode_quopri can now be successfully used as an encoder
 | 
						|
  when constructing a MIMEApplication object.
 | 
						|
 | 
						|
- Issue #11390: Add -o and -f command line options to the doctest CLI to
 | 
						|
  specify doctest options (and convert it to using argparse).
 | 
						|
 | 
						|
- Issue #18135: ssl.SSLSocket.write() now raises an OverflowError if the input
 | 
						|
  string in longer than 2 gigabytes, and ssl.SSLContext.load_cert_chain()
 | 
						|
  raises a ValueError if the password is longer than 2 gigabytes. The ssl
 | 
						|
  module does not support partial write.
 | 
						|
 | 
						|
- Issue #11016: Add C implementation of the stat module as _stat.
 | 
						|
 | 
						|
- Issue #18248: Fix libffi build on AIX.
 | 
						|
 | 
						|
- Issue #18259: Declare sethostname in socketmodule.c for AIX
 | 
						|
 | 
						|
- Issue #18147: Add diagnostic functions to ssl.SSLContext(). get_ca_list()
 | 
						|
  lists all loaded CA certificates and cert_store_stats() returns amount of
 | 
						|
  loaded X.509 certs, X.509 CA certs and CRLs.
 | 
						|
 | 
						|
- Issue #18167: cgi.FieldStorage no longer fails to handle multipart/form-data
 | 
						|
  when \r\n appears at end of 65535 bytes without other newlines.
 | 
						|
 | 
						|
- Issue #18076: Introduce importlib.util.decode_source().
 | 
						|
 | 
						|
- Issue #18357: add tests for dictview set difference.
 | 
						|
  Patch by Fraser Tweedale.
 | 
						|
 | 
						|
- importlib.abc.SourceLoader.get_source() no longer changes SyntaxError or
 | 
						|
  UnicodeDecodeError into ImportError.
 | 
						|
 | 
						|
- Issue #18058, 18057: Make the namespace package loader meet the
 | 
						|
  importlib.abc.InspectLoader ABC, allowing for namespace packages to work with
 | 
						|
  runpy.
 | 
						|
 | 
						|
- Issue #17177: The imp module is pending deprecation.
 | 
						|
 | 
						|
- subprocess: Prevent a possible double close of parent pipe fds when the
 | 
						|
  subprocess exec runs into an error.  Prevent a regular multi-close of the
 | 
						|
  /dev/null fd when any of stdin, stdout and stderr was set to DEVNULL.
 | 
						|
 | 
						|
- Issue #18194: Introduce importlib.util.cache_from_source() and
 | 
						|
  source_from_cache() while documenting the equivalent functions in imp as
 | 
						|
  deprecated.
 | 
						|
 | 
						|
- Issue #17907: Document imp.new_module() as deprecated in favour of
 | 
						|
  types.ModuleType.
 | 
						|
 | 
						|
- Issue #18192: Introduce importlib.util.MAGIC_NUMBER and document as deprecated
 | 
						|
  imp.get_magic().
 | 
						|
 | 
						|
- Issue #18149: Add filecmp.clear_cache() to manually clear the filecmp cache.
 | 
						|
  Patch by Mark Levitt
 | 
						|
 | 
						|
- Issue #18193: Add importlib.reload().
 | 
						|
 | 
						|
- Issue #18157: Stop using imp.load_module() in pydoc.
 | 
						|
 | 
						|
- Issue #16102: Make uuid._netbios_getnode() work again on Python 3.
 | 
						|
 | 
						|
- Issue #17134: Add ssl.enum_cert_store() as interface to Windows' cert store.
 | 
						|
 | 
						|
- Issue #18143: Implement ssl.get_default_verify_paths() in order to debug
 | 
						|
  the default locations for cafile and capath.
 | 
						|
 | 
						|
- Issue #17314: Move multiprocessing.forking over to importlib.
 | 
						|
 | 
						|
- Issue #11959: SMTPServer and SMTPChannel now take an optional map, use of
 | 
						|
  which avoids affecting global state.
 | 
						|
 | 
						|
- Issue #18109: os.uname() now decodes fields from the locale encoding, and
 | 
						|
  socket.gethostname() now decodes the hostname from the locale encoding,
 | 
						|
  instead of using the UTF-8 encoding in strict mode.
 | 
						|
 | 
						|
- Issue #18089: Implement importlib.abc.InspectLoader.load_module.
 | 
						|
 | 
						|
- Issue #18088: Introduce importlib.abc.Loader.init_module_attrs for setting
 | 
						|
  module attributes. Leads to the pending deprecation of
 | 
						|
  importlib.util.module_for_loader.
 | 
						|
 | 
						|
- Issue #17403: urllib.parse.robotparser normalizes the urls before adding to
 | 
						|
  ruleline. This helps in handling certain types invalid urls in a conservative
 | 
						|
  manner. Patch contributed by Mher Movsisyan.
 | 
						|
 | 
						|
- Issue #18070: Have importlib.util.module_for_loader() set attributes
 | 
						|
  unconditionally in order to properly support reloading.
 | 
						|
 | 
						|
- Added importlib.util.module_to_load to return a context manager to provide the
 | 
						|
  proper module object to load.
 | 
						|
 | 
						|
- Issue #18025: Fixed a segfault in io.BufferedIOBase.readinto() when raw
 | 
						|
  stream's read() returns more bytes than requested.
 | 
						|
 | 
						|
- Issue #18011: As was originally intended, base64.b32decode() now raises a
 | 
						|
  binascii.Error if there are non-b32-alphabet characters present in the input
 | 
						|
  string, instead of a TypeError.
 | 
						|
 | 
						|
- Issue #18072: Implement importlib.abc.InspectLoader.get_code() and
 | 
						|
  importlib.abc.ExecutionLoader.get_code().
 | 
						|
 | 
						|
- Issue #8240: Set the SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER flag on SSL
 | 
						|
  sockets.
 | 
						|
 | 
						|
- Issue #17269: Workaround for socket.getaddrinfo crash on MacOS X
 | 
						|
  with port None or "0" and flags AI_NUMERICSERV.
 | 
						|
 | 
						|
- Issue #16986: ElementTree now correctly works with string input when the
 | 
						|
  internal XML encoding is not UTF-8 or US-ASCII.
 | 
						|
 | 
						|
- Issue #17996: socket module now exposes AF_LINK constant on BSD and OSX.
 | 
						|
 | 
						|
- Issue #17900: Allowed pickling of recursive OrderedDicts.  Decreased pickled
 | 
						|
  size and pickling time.
 | 
						|
 | 
						|
- Issue #17914: Add os.cpu_count(). Patch by Yogesh Chaudhari, based on an
 | 
						|
  initial patch by Trent Nelson.
 | 
						|
 | 
						|
- Issue #17812: Fixed quadratic complexity of base64.b32encode().
 | 
						|
  Optimize base64.b32encode() and base64.b32decode() (speed up to 3x).
 | 
						|
 | 
						|
- Issue #17980: Fix possible abuse of ssl.match_hostname() for denial of
 | 
						|
  service using certificates with many wildcards (CVE-2013-2099).
 | 
						|
 | 
						|
- Issue #15758: Fix FileIO.readall() so it no longer has O(n**2) complexity.
 | 
						|
 | 
						|
- Issue #14596: The struct.Struct() objects now use a more compact
 | 
						|
  implementation.
 | 
						|
 | 
						|
- Issue #17981: logging's SysLogHandler now closes the socket when it catches
 | 
						|
  socket OSErrors.
 | 
						|
 | 
						|
- Issue #17964: Fix os.sysconf(): the return type of the C sysconf() function
 | 
						|
  is long, not int.
 | 
						|
 | 
						|
- Fix typos in the multiprocessing module.
 | 
						|
 | 
						|
- Issue #17754: Make ctypes.util.find_library() independent of the locale.
 | 
						|
 | 
						|
- Issue #17968: Fix memory leak in os.listxattr().
 | 
						|
 | 
						|
- Issue #17606: Fixed support of encoded byte strings in the XMLGenerator
 | 
						|
  characters() and ignorableWhitespace() methods.  Original patch by Sebastian
 | 
						|
  Ortiz Vasquez.
 | 
						|
 | 
						|
- Issue #17732: Ignore distutils.cfg options pertaining to install paths if a
 | 
						|
  virtual environment is active.
 | 
						|
 | 
						|
- Issue #17915: Fix interoperability of xml.sax with file objects returned by
 | 
						|
  codecs.open().
 | 
						|
 | 
						|
- Issue #16601: Restarting iteration over tarfile really restarts rather
 | 
						|
  than continuing from where it left off.  Patch by Michael Birtwell.
 | 
						|
 | 
						|
- Issue #17289: The readline module now plays nicer with external modules
 | 
						|
  or applications changing the rl_completer_word_break_characters global
 | 
						|
  variable.  Initial patch by Bradley Froehle.
 | 
						|
 | 
						|
- Issue #12181: select module: Fix struct kevent definition on OpenBSD 64-bit
 | 
						|
  platforms. Patch by Federico Schwindt.
 | 
						|
 | 
						|
- Issue #11816: multiple improvements to the dis module: get_instructions
 | 
						|
  generator, ability to redirect output to a file, Bytecode and Instruction
 | 
						|
  abstractions. Patch by Nick Coghlan, Ryan Kelly and Thomas Kluyver.
 | 
						|
 | 
						|
- Issue #13831: Embed stringification of remote traceback in local
 | 
						|
  traceback raised when pool task raises an exception.
 | 
						|
 | 
						|
- Issue #15528: Add weakref.finalize to support finalization using
 | 
						|
  weakref callbacks.
 | 
						|
 | 
						|
- Issue #14173: Avoid crashing when reading a signal handler during
 | 
						|
  interpreter shutdown.
 | 
						|
 | 
						|
- Issue #15902: Fix imp.load_module() accepting None as a file when loading an
 | 
						|
  extension module.
 | 
						|
 | 
						|
- Issue #13721: SSLSocket.getpeercert() and SSLSocket.do_handshake() now
 | 
						|
  raise an OSError with ENOTCONN, instead of an AttributeError, when the
 | 
						|
  SSLSocket is not connected.
 | 
						|
 | 
						|
- Issue #14679: add an __all__ (that contains only HTMLParser) to html.parser.
 | 
						|
 | 
						|
- Issue #17802: Fix an UnboundLocalError in html.parser.  Initial tests by
 | 
						|
  Thomas Barlow.
 | 
						|
 | 
						|
- Issue #17358: Modules loaded by imp.load_source() and load_compiled() (and by
 | 
						|
  extention load_module()) now have a better chance of working when reloaded.
 | 
						|
 | 
						|
- Issue #17804: New function ``struct.iter_unpack`` allows for streaming
 | 
						|
  struct unpacking.
 | 
						|
 | 
						|
- Issue #17830: When keyword.py is used to update a keyword file, it now
 | 
						|
  preserves the line endings of the original file.
 | 
						|
 | 
						|
- Issue #17272: Making the urllib.request's Request.full_url a descriptor.
 | 
						|
  Fixes bugs with assignment to full_url. Patch by Demian Brecht.
 | 
						|
 | 
						|
- Issue #17353: Plistlib emitted empty data tags with deeply nested datastructures
 | 
						|
 | 
						|
- Issue #11714: Use 'with' statements to assure a Semaphore releases a
 | 
						|
  condition variable.  Original patch by Thomas Rachel.
 | 
						|
 | 
						|
- Issue #16624: `subprocess.check_output` now accepts an `input` argument,
 | 
						|
  allowing the subprocess's stdin to be provided as a (byte) string.
 | 
						|
  Patch by Zack Weinberg.
 | 
						|
 | 
						|
- Issue #17795: Reverted backwards-incompatible change in SysLogHandler with
 | 
						|
  Unix domain sockets.
 | 
						|
 | 
						|
- Issue #16694: Add a pure Python implementation of the operator module.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #11182: remove the unused and undocumented pydoc.Scanner class.
 | 
						|
  Patch by Martin Morrison.
 | 
						|
 | 
						|
- Issue #17741: Add ElementTree.XMLPullParser, an event-driven parser for
 | 
						|
  non-blocking applications.
 | 
						|
 | 
						|
- Issue #17555: Fix ForkAwareThreadLock so that size of after fork
 | 
						|
  registry does not grow exponentially with generation of process.
 | 
						|
 | 
						|
- Issue #17707: fix regression in multiprocessing.Queue's get() method where
 | 
						|
  it did not block for short timeouts.
 | 
						|
 | 
						|
- Issue #17720: Fix the Python implementation of pickle.Unpickler to correctly
 | 
						|
  process the APPENDS opcode when it is used on non-list objects.
 | 
						|
 | 
						|
- Issue #17012: shutil.which() no longer falls back to the PATH environment
 | 
						|
  variable if an empty path argument is specified.  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #17710: Fix pickle raising a SystemError on bogus input.
 | 
						|
 | 
						|
- Issue #17341: Include the invalid name in the error messages from re about
 | 
						|
  invalid group names.
 | 
						|
 | 
						|
- Issue #17702: os.environ now raises KeyError with the original environment
 | 
						|
  variable name (str on UNIX), instead of using the encoded name (bytes on
 | 
						|
  UNIX).
 | 
						|
 | 
						|
- Issue #16163: Make the importlib based version of pkgutil.iter_importers
 | 
						|
  work for submodules. Initial patch by Berker Peksag.
 | 
						|
 | 
						|
- Issue #16804: Fix a bug in the 'site' module that caused running
 | 
						|
  'python -S -m site' to incorrectly throw an exception.
 | 
						|
 | 
						|
- Issue #15480: Remove the deprecated and unused TYPE_INT64 code from marshal.
 | 
						|
  Initial patch by Daniel Riti.
 | 
						|
 | 
						|
- Issue #2118: SMTPException is now a subclass of OSError.
 | 
						|
 | 
						|
- Issue #17016: Get rid of possible pointer wraparounds and integer overflows
 | 
						|
  in the re module.  Patch by Nickolai Zeldovich.
 | 
						|
 | 
						|
- Issue #16658: add missing return to HTTPConnection.send()
 | 
						|
  Patch by Jeff Knupp.
 | 
						|
 | 
						|
- Issue #9556: the logging package now allows specifying a time-of-day for a
 | 
						|
  TimedRotatingFileHandler to rotate.
 | 
						|
 | 
						|
- Issue #14971: unittest test discovery no longer gets confused when a function
 | 
						|
  has a different __name__ than its name in the TestCase class dictionary.
 | 
						|
 | 
						|
- Issue #17487: The wave getparams method now returns a namedtuple rather than
 | 
						|
  a plain tuple.
 | 
						|
 | 
						|
- Issue #17675: socket repr() provides local and remote addresses (if any).
 | 
						|
  Patch by Giampaolo Rodola'
 | 
						|
 | 
						|
- Issue #17093: Make the ABCs in importlib.abc provide default values or raise
 | 
						|
  reasonable exceptions for their methods to make them more amenable to super()
 | 
						|
  calls.
 | 
						|
 | 
						|
- Issue #17566: Make importlib.abc.Loader.module_repr() optional instead of an
 | 
						|
  abstractmethod; now it raises NotImplementedError so as to be ignored by default.
 | 
						|
 | 
						|
- Issue #17678: Remove the use of deprecated method in http/cookiejar.py by
 | 
						|
  changing the call to get_origin_req_host() to origin_req_host.
 | 
						|
 | 
						|
- Issue #17666: Fix reading gzip files with an extra field.
 | 
						|
 | 
						|
- Issue #16475: Support object instancing, recursion and interned strings
 | 
						|
  in marshal
 | 
						|
 | 
						|
- Issue #17502: Process DEFAULT values in mock side_effect that returns iterator.
 | 
						|
 | 
						|
- Issue #16795: On the ast.arguments object, unify vararg with varargannotation
 | 
						|
  and kwarg and kwargannotation. Change the column offset of ast.Attribute to be
 | 
						|
  at the attribute name.
 | 
						|
 | 
						|
- Issue #17434: Properly raise a SyntaxError when a string occurs between future
 | 
						|
  imports.
 | 
						|
 | 
						|
- Issue #17117: Import and @importlib.util.set_loader now set __loader__ when
 | 
						|
  it has a value of None or the attribute doesn't exist.
 | 
						|
 | 
						|
- Issue #17032: The "global" in the "NameError: global name 'x' is not defined"
 | 
						|
  error message has been removed.  Patch by Ram Rachum.
 | 
						|
 | 
						|
- Issue #18080: When building a C extension module on OS X, if the compiler
 | 
						|
  is overriden with the CC environment variable, use the new compiler as
 | 
						|
  the default for linking if LDSHARED is not also overriden.  This restores
 | 
						|
  Distutils behavior introduced in 3.2.3 and inadvertently dropped in 3.3.0.
 | 
						|
 | 
						|
- Issue #18113: Fixed a refcount leak in the curses.panel module's
 | 
						|
  set_userptr() method.  Reported by Atsuo Ishimoto.
 | 
						|
 | 
						|
- Implement PEP 443 "Single-dispatch generic functions".
 | 
						|
 | 
						|
- Implement PEP 435 "Adding an Enum type to the Python standard library".
 | 
						|
 | 
						|
- Issue #15596: Faster pickling of unicode strings.
 | 
						|
 | 
						|
- Issue #17572: Avoid chained exceptions when passing bad directives to
 | 
						|
  time.strptime().  Initial patch by Claudiu Popa.
 | 
						|
 | 
						|
- Issue #17435: threading.Timer's __init__ method no longer uses mutable
 | 
						|
  default values for the args and kwargs parameters.
 | 
						|
 | 
						|
- Issue #17526: fix an IndexError raised while passing code without filename to
 | 
						|
  inspect.findsource().  Initial patch by Tyler Doyle.
 | 
						|
 | 
						|
- Issue #17540: Added style parameter to logging formatter configuration by dict.
 | 
						|
 | 
						|
- Issue #16692: The ssl module now supports TLS 1.1 and TLS 1.2.  Initial
 | 
						|
  patch by Michele Orrù.
 | 
						|
 | 
						|
- Issue #17025: multiprocessing: Reduce Queue and SimpleQueue contention.
 | 
						|
 | 
						|
- Issue #17536: Add to webbrowser's browser list: www-browser, x-www-browser,
 | 
						|
  iceweasel, iceape.
 | 
						|
 | 
						|
- Issue #17150: pprint now uses line continuations to wrap long string
 | 
						|
  literals.
 | 
						|
 | 
						|
- Issue #17488: Change the subprocess.Popen bufsize parameter default value
 | 
						|
  from unbuffered (0) to buffering (-1) to match the behavior existing code
 | 
						|
  expects and match the behavior of the subprocess module in Python 2 to avoid
 | 
						|
  introducing hard to track down bugs.
 | 
						|
 | 
						|
- Issue #17521: Corrected non-enabling of logger following two calls to
 | 
						|
  fileConfig().
 | 
						|
 | 
						|
- Issue #17508: Corrected logging MemoryHandler configuration in dictConfig()
 | 
						|
  where the target handler wasn't configured first.
 | 
						|
 | 
						|
- Issue #17209: curses.window.get_wch() now correctly handles KeyboardInterrupt
 | 
						|
  (CTRL+c).
 | 
						|
 | 
						|
- Issue #5713: smtplib now handles 421 (closing connection) error codes when
 | 
						|
  sending mail by closing the socket and reporting the 421 error code via the
 | 
						|
  exception appropriate to the command that received the error response.
 | 
						|
 | 
						|
- Issue #16997: unittest.TestCase now provides a subTest() context manager
 | 
						|
  to procedurally generate, in an easy way, small test instances.
 | 
						|
 | 
						|
- Issue #17485: Also delete the Request Content-Length header if the data
 | 
						|
  attribute is deleted.  (Follow on to issue Issue #16464).
 | 
						|
 | 
						|
- Issue #15927: CVS now correctly parses escaped newlines and carriage
 | 
						|
  when parsing with quoting turned off.
 | 
						|
 | 
						|
- Issue #17467: add readline and readlines support to mock_open in
 | 
						|
  unittest.mock.
 | 
						|
 | 
						|
- Issue #13248: removed deprecated and undocumented difflib.isbjunk,
 | 
						|
  isbpopular.
 | 
						|
 | 
						|
- Issue #17192: Update the ctypes module's libffi to v3.0.13.  This
 | 
						|
  specifically addresses a stack misalignment issue on x86 and issues on
 | 
						|
  some more recent platforms.
 | 
						|
 | 
						|
- Issue #8862: Fixed curses cleanup when getkey is interrputed by a signal.
 | 
						|
 | 
						|
- Issue #17443: imaplib.IMAP4_stream was using the default unbuffered IO
 | 
						|
  in subprocess, but the imap code assumes buffered IO.  In Python2 this
 | 
						|
  worked by accident.  IMAP4_stream now explicitly uses buffered IO.
 | 
						|
 | 
						|
- Issue #17476: Fixed regression relative to Python2 in undocumented pydoc
 | 
						|
  'allmethods'; it was missing unbound methods on the class.
 | 
						|
 | 
						|
- Issue #17474: Remove the deprecated methods of Request class.
 | 
						|
 | 
						|
- Issue #16709: unittest discover order is no-longer filesystem specific. Patch
 | 
						|
  by Jeff Ramnani.
 | 
						|
 | 
						|
- Use the HTTPS PyPI url for upload, overriding any plain HTTP URL in pypirc.
 | 
						|
 | 
						|
- Issue #5024: sndhdr.whichhdr now returns the frame count for WAV files
 | 
						|
  rather than -1.
 | 
						|
 | 
						|
- Issue #17460: Remove the strict argument of HTTPConnection and removing the
 | 
						|
  DeprecationWarning being issued from 3.2 onwards.
 | 
						|
 | 
						|
- Issue #16880: Do not assume _imp.load_dynamic() is defined in the imp module.
 | 
						|
 | 
						|
- Issue #16389: Fixed a performance regression relative to Python 3.1 in the
 | 
						|
  caching of compiled regular expressions.
 | 
						|
 | 
						|
- Added missing FeedParser and BytesFeedParser to email.parser.__all__.
 | 
						|
 | 
						|
- Issue #17431: Fix missing import of BytesFeedParser in email.parser.
 | 
						|
 | 
						|
- Issue #12921: http.server's send_error takes an explain argument to send more
 | 
						|
  information in response. Patch contributed by Karl.
 | 
						|
 | 
						|
- Issue #17414: Add timeit, repeat, and default_timer to timeit.__all__.
 | 
						|
 | 
						|
- Issue #1285086: Get rid of the refcounting hack and speed up
 | 
						|
  urllib.parse.unquote() and urllib.parse.unquote_to_bytes().
 | 
						|
 | 
						|
- Issue #17099: Have importlib.find_loader() raise ValueError when __loader__
 | 
						|
  is not set, harmonizing with what happens when the attribute is set to None.
 | 
						|
 | 
						|
- Expose the O_PATH constant in the os module if it is available.
 | 
						|
 | 
						|
- Issue #17368: Fix an off-by-one error in the Python JSON decoder that caused
 | 
						|
  a failure while decoding empty object literals when object_pairs_hook was
 | 
						|
  specified.
 | 
						|
 | 
						|
- Issue #17385: Fix quadratic behavior in threading.Condition.  The FIFO
 | 
						|
  queue now uses a deque instead of a list.
 | 
						|
 | 
						|
- Issue #15806: Add contextlib.ignore().  This creates a context manager to
 | 
						|
  ignore specified exceptions, replacing the "except SomeException: pass" idiom.
 | 
						|
 | 
						|
- Issue #14645: The email generator classes now produce output using the
 | 
						|
  specified linesep throughout.  Previously if the prolog, epilog, or
 | 
						|
  body were stored with a different linesep, that linesep was used.  This
 | 
						|
  fix corrects an RFC non-compliance issue with smtplib.send_message.
 | 
						|
 | 
						|
- Issue #17278: Fix a crash in heapq.heappush() and heapq.heappop() when
 | 
						|
  the list is being resized concurrently.
 | 
						|
 | 
						|
- Issue #16962: Use getdents64 instead of the obsolete getdents syscall
 | 
						|
  in the subprocess module on Linux.
 | 
						|
 | 
						|
- Issue #16935: unittest now counts the module as skipped if it raises SkipTest,
 | 
						|
  instead of counting it as an error.  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #17018: Make Process.join() retry if os.waitpid() fails with EINTR.
 | 
						|
 | 
						|
- Issue #17223: array module: Fix a crasher when converting an array containing
 | 
						|
  invalid characters (outside range [U+0000; U+10ffff]) to Unicode:
 | 
						|
  repr(array), str(array) and array.tounicode(). Patch written by Manuel Jacob.
 | 
						|
 | 
						|
- Issue #17197: profile/cProfile modules refactored so that code of run() and
 | 
						|
  runctx() utility functions is not duplicated in both modules.
 | 
						|
 | 
						|
- Issue #14720: sqlite3: Convert datetime microseconds correctly.
 | 
						|
  Patch by Lowe Thiderman.
 | 
						|
 | 
						|
- Issue #15132: Allow a list for the defaultTest argument of
 | 
						|
  unittest.TestProgram. Patch by Jyrki Pulliainen.
 | 
						|
 | 
						|
- Issue #17225: JSON decoder now counts columns in the first line starting
 | 
						|
  with 1, as in other lines.
 | 
						|
 | 
						|
- Issue #6623: Added explicit DeprecationWarning for ftplib.netrc, which has
 | 
						|
  been deprecated and undocumented for a long time.
 | 
						|
 | 
						|
- Issue #13700: Fix byte/string handling in imaplib authentication when an
 | 
						|
  authobject is specified.
 | 
						|
 | 
						|
- Issue #13153: Tkinter functions now raise TclError instead of ValueError when
 | 
						|
  a string argument contains non-BMP character.
 | 
						|
 | 
						|
- Issue #9669: Protect re against infinite loops on zero-width matching in
 | 
						|
  non-greedy repeat.  Patch by Matthew Barnett.
 | 
						|
 | 
						|
- Issue #13169: The maximal repetition number in a regular expression has been
 | 
						|
  increased from 65534 to 2147483647 (on 32-bit platform) or 4294967294 (on
 | 
						|
  64-bit).
 | 
						|
 | 
						|
- Issue #17143: Fix a missing import in the trace module.  Initial patch by
 | 
						|
  Berker Peksag.
 | 
						|
 | 
						|
- Issue #15220: email.feedparser's line splitting algorithm is now simpler and
 | 
						|
  faster.
 | 
						|
 | 
						|
- Issue #16743: Fix mmap overflow check on 32 bit Windows.
 | 
						|
 | 
						|
- Issue #16996: webbrowser module now uses shutil.which() to find a
 | 
						|
  web-browser on the executable search path.
 | 
						|
 | 
						|
- Issue #16800: tempfile.gettempdir() no longer left temporary files when
 | 
						|
  the disk is full.  Original patch by Amir Szekely.
 | 
						|
 | 
						|
- Issue #17192: Import libffi-3.0.12.
 | 
						|
 | 
						|
- Issue #16564: Fixed regression relative to Python2 in the operation of
 | 
						|
  email.encoders.encode_7or8bit when used with binary data.
 | 
						|
 | 
						|
- Issue #17052: unittest discovery should use self.testLoader.
 | 
						|
 | 
						|
- Issue #4591: Uid and gid values larger than 2**31 are supported now.
 | 
						|
 | 
						|
- Issue #17141: random.vonmisesvariate() no longer hangs for large kappas.
 | 
						|
 | 
						|
- Issue #17149: Fix random.vonmisesvariate to always return results in
 | 
						|
  [0, 2*math.pi].
 | 
						|
 | 
						|
- Issue #1470548: XMLGenerator now works with binary output streams.
 | 
						|
 | 
						|
- Issue #6975: os.path.realpath() now correctly resolves multiple nested
 | 
						|
  symlinks on POSIX platforms.
 | 
						|
 | 
						|
- Issue #13773: sqlite3.connect() gets a new `uri` parameter to pass the
 | 
						|
  filename as a URI, allowing to pass custom options.
 | 
						|
 | 
						|
- Issue #16564: Fixed regression relative to Python2 in the operation of
 | 
						|
  email.encoders.encode_noop when used with binary data.
 | 
						|
 | 
						|
- Issue #10355: The mode, name, encoding and newlines properties now work on
 | 
						|
  SpooledTemporaryFile objects even when they have not yet rolled over.
 | 
						|
  Obsolete method xreadline (which has never worked in Python 3) has been
 | 
						|
  removed.
 | 
						|
 | 
						|
- Issue #16686: Fixed a lot of bugs in audioop module.  Fixed crashes in
 | 
						|
  avgpp(), maxpp() and ratecv().  Fixed an integer overflow in add(), bias(),
 | 
						|
  and ratecv().  reverse(), lin2lin() and ratecv() no more lose precision for
 | 
						|
  32-bit samples.  max() and rms() no more returns a negative result and
 | 
						|
  various other functions now work correctly with 32-bit sample -0x80000000.
 | 
						|
 | 
						|
- Issue #17073: Fix some integer overflows in sqlite3 module.
 | 
						|
 | 
						|
- Issue #16723: httplib.HTTPResponse no longer marked closed when the connection
 | 
						|
  is automatically closed.
 | 
						|
 | 
						|
- Issue #15359: Add CAN_BCM protocol support to the socket module. Patch by
 | 
						|
  Brian Thorne.
 | 
						|
 | 
						|
- Issue #16948: Fix quoted printable body encoding for non-latin1 character
 | 
						|
  sets in the email package.
 | 
						|
 | 
						|
- Issue #16811: Fix folding of headers with no value in the provisional email
 | 
						|
  policies.
 | 
						|
 | 
						|
- Issue #17132: Update symbol for "yield from" grammar changes.
 | 
						|
 | 
						|
- Issue #17076: Make copying of xattrs more tolerant of missing FS support.
 | 
						|
  Patch by Thomas Wouters.
 | 
						|
 | 
						|
- Issue #17089: Expat parser now correctly works with string input when the
 | 
						|
  internal XML encoding is not UTF-8 or US-ASCII.  It also now accepts bytes
 | 
						|
  and strings larger than 2 GiB.
 | 
						|
 | 
						|
- Issue #6083: Fix multiple segmentation faults occured when PyArg_ParseTuple
 | 
						|
  parses nested mutating sequence.
 | 
						|
 | 
						|
- Issue #5289: Fix ctypes.util.find_library on Solaris.
 | 
						|
 | 
						|
- Issue #17106: Fix a segmentation fault in io.TextIOWrapper when an underlying
 | 
						|
  stream or a decoder produces data of an unexpected type (i.e. when
 | 
						|
  io.TextIOWrapper initialized with text stream or use bytes-to-bytes codec).
 | 
						|
 | 
						|
- Issue #17015: When it has a spec, a Mock object now inspects its signature
 | 
						|
  when matching calls, so that arguments can be matched positionally or
 | 
						|
  by name.
 | 
						|
 | 
						|
- Issue #15633: httplib.HTTPResponse is now mark closed when the server
 | 
						|
  sends less than the advertised Content-Length.
 | 
						|
 | 
						|
- Issue #12268: The io module file object write methods no longer abort early
 | 
						|
  when one of its write system calls is interrupted (EINTR).
 | 
						|
 | 
						|
- Issue #6972: The zipfile module no longer overwrites files outside of
 | 
						|
  its destination path when extracting malicious zip files.
 | 
						|
 | 
						|
- Issue #4844: ZipFile now raises BadZipFile when opens a ZIP file with an
 | 
						|
  incomplete "End of Central Directory" record.  Original patch by Guilherme
 | 
						|
  Polo and Alan McIntyre.
 | 
						|
 | 
						|
- Issue #17071: Signature.bind() now works when one of the keyword arguments
 | 
						|
  is named ``self``.
 | 
						|
 | 
						|
- Issue #12004: Fix an internal error in PyZipFile when writing an invalid
 | 
						|
  Python file.  Patch by Ben Morgan.
 | 
						|
 | 
						|
- Have py_compile use importlib as much as possible to avoid code duplication.
 | 
						|
  Code now raises FileExistsError if the file path to be used for the
 | 
						|
  byte-compiled file is a symlink or non-regular file as a warning that import
 | 
						|
  will not keep the file path type if it writes to that path.
 | 
						|
 | 
						|
- Issue #16972: Have site.addpackage() consider already known paths even when
 | 
						|
  none are explicitly passed in. Bug report and fix by Kirill.
 | 
						|
 | 
						|
- Issue #1602133: on Mac OS X a shared library build (``--enable-shared``)
 | 
						|
  now fills the ``os.environ`` variable correctly.
 | 
						|
 | 
						|
- Issue #15505: `unittest.installHandler` no longer assumes SIGINT handler is
 | 
						|
  set to a callable object.
 | 
						|
 | 
						|
- Issue #13454: Fix a crash when deleting an iterator created by itertools.tee()
 | 
						|
  if all other iterators were very advanced before.
 | 
						|
 | 
						|
- Issue #12411: Fix to cgi.parse_multipart to correctly use bytes boundaries
 | 
						|
  and bytes data. Patch by Jonas Wagner.
 | 
						|
 | 
						|
- Issue #16957: shutil.which() no longer searches a bare file name in the
 | 
						|
  current directory on Unix and no longer searches a relative file path with
 | 
						|
  a directory part in PATH directories.  Patch by Thomas Kluyver.
 | 
						|
 | 
						|
- Issue #1159051: GzipFile now raises EOFError when reading a corrupted file
 | 
						|
  with truncated header or footer.
 | 
						|
 | 
						|
- Issue #16993: shutil.which() now preserves the case of the path and extension
 | 
						|
  on Windows.
 | 
						|
 | 
						|
- Issue #16992: On Windows in signal.set_wakeup_fd, validate the file
 | 
						|
  descriptor argument.
 | 
						|
 | 
						|
- Issue #16422: For compatibility with the Python version, the C version of
 | 
						|
  decimal now uses strings instead of integers for rounding mode constants.
 | 
						|
 | 
						|
- Issue #15861: tkinter now correctly works with lists and tuples containing
 | 
						|
  strings with whitespaces, backslashes or unbalanced braces.
 | 
						|
 | 
						|
- Issue #9720: zipfile now writes correct local headers for files larger than
 | 
						|
  4 GiB.
 | 
						|
 | 
						|
- Issue #16955: Fix the poll() method for multiprocessing's socket
 | 
						|
  connections on Windows.
 | 
						|
 | 
						|
- SSLContext.load_dh_params() now properly closes the input file.
 | 
						|
 | 
						|
- Issue #15031: Refactor some .pyc management code to cut down on code
 | 
						|
  duplication. Thanks to Ronan Lamy for the report and taking an initial stab
 | 
						|
  at the problem.
 | 
						|
 | 
						|
- Issue #16398: Optimize deque.rotate() so that it only moves pointers
 | 
						|
  and doesn't touch the underlying data with increfs and decrefs.
 | 
						|
 | 
						|
- Issue #16900: Issue a ResourceWarning when an ssl socket is left unclosed.
 | 
						|
 | 
						|
- Issue #13899: \A, \Z, and \B now correctly match the A, Z, and B literals
 | 
						|
  when used inside character classes (e.g. '[\A]').  Patch by Matthew Barnett.
 | 
						|
 | 
						|
- Issue #15545: Fix regression in sqlite3's iterdump method where it was
 | 
						|
  failing if the connection used a row factory (such as sqlite3.Row) that
 | 
						|
  produced unsortable objects. (Regression was introduced by fix for 9750).
 | 
						|
 | 
						|
- fcntl: add F_DUPFD_CLOEXEC constant, available on Linux 2.6.24+.
 | 
						|
 | 
						|
- Issue #15972: Fix error messages when os functions expecting a file name or
 | 
						|
  file descriptor receive the incorrect type.
 | 
						|
 | 
						|
- Issue #8109: The ssl module now has support for server-side SNI, thanks
 | 
						|
  to a :meth:`SSLContext.set_servername_callback` method.  Patch by Daniel
 | 
						|
  Black.
 | 
						|
 | 
						|
- Issue #16860: In tempfile, use O_CLOEXEC when available to set the
 | 
						|
  close-on-exec flag atomically.
 | 
						|
 | 
						|
- Issue #16674: random.getrandbits() is now 20-40% faster for small integers.
 | 
						|
 | 
						|
- Issue #16009: JSON error messages now provide more information.
 | 
						|
 | 
						|
- Issue #16828: Fix error incorrectly raised by bz2.compress(b'') and
 | 
						|
  bz2.BZ2Compressor.compress(b''). Initial patch by Martin Packman.
 | 
						|
 | 
						|
- Issue #16833: In http.client.HTTPConnection, do not concatenate the request
 | 
						|
  headers and body when the payload exceeds 16 KB, since it can consume more
 | 
						|
  memory for no benefit.  Patch by Benno Leslie.
 | 
						|
 | 
						|
- Issue #16541: tk_setPalette() now works with keyword arguments.
 | 
						|
 | 
						|
- Issue #16820: In configparser, `parser.popitem()` no longer raises ValueError.
 | 
						|
  This makes `parser.clean()` work correctly.
 | 
						|
 | 
						|
- Issue #16820: In configparser, ``parser['section'] = {}`` now preserves
 | 
						|
  section order within the parser. This makes `parser.update()` preserve section
 | 
						|
  order as well.
 | 
						|
 | 
						|
- Issue #16820: In configparser, ``parser['DEFAULT'] = {}`` now correctly
 | 
						|
  clears previous values stored in the default section. Same goes for
 | 
						|
  ``parser.update({'DEFAULT': {}})``.
 | 
						|
 | 
						|
- Issue #9586: Redefine SEM_FAILED on MacOSX to keep compiler happy.
 | 
						|
 | 
						|
- Issue #16787: Increase asyncore and asynchat default output buffers size, to
 | 
						|
  decrease CPU usage and increase throughput.
 | 
						|
 | 
						|
- Issue #10527: make multiprocessing use poll() instead of select() if available.
 | 
						|
 | 
						|
- Issue #16688: Now regexes contained backreferences correctly work with
 | 
						|
  non-ASCII strings.  Patch by Matthew Barnett.
 | 
						|
 | 
						|
- Issue #16486: Make aifc files act as context managers.
 | 
						|
 | 
						|
- Issue #16485: Now file descriptors are closed if file header patching failed
 | 
						|
  on closing an aifc file.
 | 
						|
 | 
						|
- Issue #16640: Run less code under a lock in sched module.
 | 
						|
 | 
						|
- Issue #16165: sched.scheduler.run() no longer blocks a scheduler for other
 | 
						|
  threads.
 | 
						|
 | 
						|
- Issue #16641: Default values of sched.scheduler.enter() are no longer
 | 
						|
  modifiable.
 | 
						|
 | 
						|
- Issue #16618: Make glob.glob match consistently across strings and bytes
 | 
						|
  regarding leading dots.  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #16788: Add samestat to Lib/ntpath.py
 | 
						|
 | 
						|
- Issue #16713: Parsing of 'tel' urls using urlparse separates params from
 | 
						|
  path.
 | 
						|
 | 
						|
- Issue #16443: Add docstrings to regular expression match objects.
 | 
						|
  Patch by Anton Kasyanov.
 | 
						|
 | 
						|
- Issue #15701: Fix HTTPError info method call to return the headers information.
 | 
						|
 | 
						|
- Issue #16752: Add a missing import to modulefinder. Patch by Berker Peksag.
 | 
						|
 | 
						|
- Issue #16646: ftplib.FTP.makeport() might lose socket error details.
 | 
						|
  (patch by Serhiy Storchaka)
 | 
						|
 | 
						|
- Issue #16626: Fix infinite recursion in glob.glob() on Windows when the
 | 
						|
  pattern contains a wildcard in the drive or UNC path.  Patch by Serhiy
 | 
						|
  Storchaka.
 | 
						|
 | 
						|
- Issue #15783: Except for the number methods, the C version of decimal now
 | 
						|
  supports all None default values present in decimal.py. These values were
 | 
						|
  largely undocumented.
 | 
						|
 | 
						|
- Issue #11175: argparse.FileType now accepts encoding and errors
 | 
						|
  arguments. Patch by Lucas Maystre.
 | 
						|
 | 
						|
- Issue #16488: epoll() objects now support the `with` statement.  Patch
 | 
						|
  by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #16298: In HTTPResponse.read(), close the socket when there is no
 | 
						|
  Content-Length and the incoming stream is finished.  Patch by Eran
 | 
						|
  Rundstein.
 | 
						|
 | 
						|
- Issue #16049: Add abc.ABC class to enable the use of inheritance to create
 | 
						|
  ABCs, rather than the more cumbersome metaclass=ABCMeta. Patch by Bruno
 | 
						|
  Dupuis.
 | 
						|
 | 
						|
- Expose the TCP_FASTOPEN and MSG_FASTOPEN flags in socket when they're
 | 
						|
  available.
 | 
						|
 | 
						|
- Issue #15701: Add a .headers attribute to urllib.error.HTTPError. Patch
 | 
						|
  contributed by Berker Peksag.
 | 
						|
 | 
						|
- Issue #15872: Fix 3.3 regression introduced by the new fd-based shutil.rmtree
 | 
						|
  that caused it to not ignore certain errors when ignore_errors was set.
 | 
						|
  Patch by Alessandro Moura and Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #16248: Disable code execution from the user's home directory by
 | 
						|
  tkinter when the -E flag is passed to Python.  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #13390: New function :func:`sys.getallocatedblocks()` returns the
 | 
						|
  number of memory blocks currently allocated.
 | 
						|
 | 
						|
- Issue #16628: Fix a memory leak in ctypes.resize().
 | 
						|
 | 
						|
- Issue #13614: Fix setup.py register failure with invalid rst in description.
 | 
						|
  Patch by Julien Courteau and Pierre Paul Lefebvre.
 | 
						|
 | 
						|
- Issue #13512: Create ~/.pypirc securely (CVE-2011-4944).  Initial patch by
 | 
						|
  Philip Jenvey, tested by Mageia and Debian.
 | 
						|
 | 
						|
- Issue #7719: Make distutils ignore ``.nfs*`` files instead of choking later
 | 
						|
  on.  Initial patch by SilentGhost and Jeff Ramnani.
 | 
						|
 | 
						|
- Issue #13120: Allow to call pdb.set_trace() from thread.
 | 
						|
  Patch by Ilya Sandler.
 | 
						|
 | 
						|
- Issue #16585: Make CJK encoders support error handlers that return bytes per
 | 
						|
  PEP 383.
 | 
						|
 | 
						|
- Issue #10182: The re module doesn't truncate indices to 32 bits anymore.
 | 
						|
  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #16333: use (",", ": ") as default separator in json when indent is
 | 
						|
  specified, to avoid trailing whitespace.  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #16573: In 2to3, treat enumerate() like a consuming call, so superfluous
 | 
						|
  list() calls aren't added to filter(), map(), and zip() which are directly
 | 
						|
  passed enumerate().
 | 
						|
 | 
						|
- Issue #16464: Reset the Content-Length header when a urllib Request is reused
 | 
						|
  with new data.
 | 
						|
 | 
						|
- Issue #12848: The pure Python pickle implementation now treats object
 | 
						|
  lengths as unsigned 32-bit integers, like the C implementation does.
 | 
						|
  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #16423: urllib.request now has support for ``data:`` URLs.  Patch by
 | 
						|
  Mathias Panzenböck.
 | 
						|
 | 
						|
- Issue #4473: Add a POP3.stls() to switch a clear-text POP3 session into
 | 
						|
  an encrypted POP3 session, on supported servers.  Patch by Lorenzo Catucci.
 | 
						|
 | 
						|
- Issue #4473: Add a POP3.capa() method to query the capabilities advertised
 | 
						|
  by the POP3 server.  Patch by Lorenzo Catucci.
 | 
						|
 | 
						|
- Issue #4473: Ensure the socket is shutdown cleanly in POP3.close().
 | 
						|
  Patch by Lorenzo Catucci.
 | 
						|
 | 
						|
- Issue #16522: added FAIL_FAST flag to doctest.
 | 
						|
 | 
						|
- Issue #15627: Add the importlib.abc.InspectLoader.source_to_code() method.
 | 
						|
 | 
						|
- Issue #16408: Fix file descriptors not being closed in error conditions
 | 
						|
  in the zipfile module.  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #14631: Add a new :class:`weakref.WeakMethod` to simulate weak
 | 
						|
  references to bound methods.
 | 
						|
 | 
						|
- Issue #16469: Fix exceptions from float -> Fraction and Decimal -> Fraction
 | 
						|
  conversions for special values to be consistent with those for float -> int
 | 
						|
  and Decimal -> int.  Patch by Alexey Kachayev.
 | 
						|
 | 
						|
- Issue #16481: multiprocessing no longer leaks process handles on Windows.
 | 
						|
 | 
						|
- Issue #12428: Add a pure Python implementation of functools.partial().
 | 
						|
  Patch by Brian Thorne.
 | 
						|
 | 
						|
- Issue #16140: The subprocess module no longer double closes its child
 | 
						|
  subprocess.PIPE parent file descriptors on child error prior to exec().
 | 
						|
 | 
						|
- Remove a bare print to stdout from the subprocess module that could have
 | 
						|
  happened if the child process wrote garbage to its pre-exec error pipe.
 | 
						|
 | 
						|
- The subprocess module now raises its own SubprocessError instead of a
 | 
						|
  RuntimeError in various error situations which should not normally happen.
 | 
						|
 | 
						|
- Issue #16327: The subprocess module no longer leaks file descriptors
 | 
						|
  used for stdin/stdout/stderr pipes to the child when fork() fails.
 | 
						|
 | 
						|
- Issue #14396: Handle the odd rare case of waitpid returning 0 when not
 | 
						|
  expected in subprocess.Popen.wait().
 | 
						|
 | 
						|
- Issue #16411: Fix a bug where zlib.decompressobj().flush() might try to access
 | 
						|
  previously-freed memory. Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #16357: fix calling accept() on a SSLSocket created through
 | 
						|
  SSLContext.wrap_socket().  Original patch by Jeff McNeil.
 | 
						|
 | 
						|
- Issue #16409: The reporthook callback made by the legacy
 | 
						|
  urllib.request.urlretrieve API now properly supplies a constant non-zero
 | 
						|
  block_size as it did in Python 3.2 and 2.7.  This matches the behavior of
 | 
						|
  urllib.request.URLopener.retrieve.
 | 
						|
 | 
						|
- Issue #16431: Use the type information when constructing a Decimal subtype
 | 
						|
  from a Decimal argument.
 | 
						|
 | 
						|
- Issue #15641: Clean up deprecated classes from importlib
 | 
						|
  Patch by Taras Lyapun.
 | 
						|
 | 
						|
- Issue #16350: zlib.decompressobj().decompress() now accumulates data from
 | 
						|
  successive calls after EOF in unused_data, instead of only saving the argument
 | 
						|
  to the last call. decompressobj().flush() now correctly sets unused_data and
 | 
						|
  unconsumed_tail. A bug in the handling of MemoryError when setting the
 | 
						|
  unconsumed_tail attribute has also been fixed. Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #12759: sre_parse now raises a proper error when the name of the group
 | 
						|
  is missing.  Initial patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #16152: fix tokenize to ignore whitespace at the end of the code when
 | 
						|
  no newline is found.  Patch by Ned Batchelder.
 | 
						|
 | 
						|
- Issue #16284: Prevent keeping unnecessary references to worker functions
 | 
						|
  in concurrent.futures ThreadPoolExecutor.
 | 
						|
 | 
						|
- Issue #16230: Fix a crash in select.select() when one the lists changes
 | 
						|
  size while iterated on.  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #16228: Fix a crash in the json module where a list changes size
 | 
						|
  while it is being encoded.  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #16351: New function gc.get_stats() returns per-generation collection
 | 
						|
  statistics.
 | 
						|
 | 
						|
- Issue #14897: Enhance error messages of struct.pack and
 | 
						|
  struct.pack_into. Patch by Matti Mäki.
 | 
						|
 | 
						|
- Issue #16316: mimetypes now recognizes the .xz and .txz (.tar.xz) extensions.
 | 
						|
  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #12890: cgitb no longer prints spurious <p> tags in text
 | 
						|
  mode when the logdir option is specified.
 | 
						|
 | 
						|
- Issue #16307: Fix multiprocessing.Pool.map_async not calling its callbacks.
 | 
						|
  Patch by Janne Karila.
 | 
						|
 | 
						|
- Issue #16305: Fix a segmentation fault occurring when interrupting
 | 
						|
  math.factorial.
 | 
						|
 | 
						|
- Issue #16116: Fix include and library paths to be correct when building C
 | 
						|
  extensions in venvs.
 | 
						|
 | 
						|
- Issue #16245: Fix the value of a few entities in html.entities.html5.
 | 
						|
 | 
						|
- Issue #16301: Fix the localhost verification in urllib/request.py for file://
 | 
						|
  urls.
 | 
						|
 | 
						|
- Issue #16250: Fix the invocations of URLError which had misplaced filename
 | 
						|
  attribute for exception.
 | 
						|
 | 
						|
- Issue #10836: Fix exception raised when file not found in urlretrieve
 | 
						|
  Initial patch by Ezio Melotti.
 | 
						|
 | 
						|
- Issue #14398: Fix size truncation and overflow bugs in the bz2 module.
 | 
						|
 | 
						|
- Issue #12692: Fix resource leak in urllib.request when talking to an HTTP
 | 
						|
  server that does not include a ``Connection: close`` header in its responses.
 | 
						|
 | 
						|
- Issue #12034: Fix bogus caching of result in check_GetFinalPathNameByHandle.
 | 
						|
  Patch by Atsuo Ishimoto.
 | 
						|
 | 
						|
- Improve performance of `lzma.LZMAFile` (see also issue #16034).
 | 
						|
 | 
						|
- Issue #16220: wsgiref now always calls close() on an iterable response.
 | 
						|
  Patch by Brent Tubbs.
 | 
						|
 | 
						|
- Issue #16270: urllib may hang when used for retrieving files via FTP by using
 | 
						|
  a context manager.  Patch by Giampaolo Rodola'.
 | 
						|
 | 
						|
- Issue #16461: Wave library should be able to deal with 4GB wav files,
 | 
						|
  and sample rate of 44100 Hz.
 | 
						|
 | 
						|
- Issue #16176: Properly identify Windows 8 via platform.platform()
 | 
						|
 | 
						|
- Issue #16088: BaseHTTPRequestHandler's send_error method includes a
 | 
						|
  Content-Length header in it's response now. Patch by Antoine Pitrou.
 | 
						|
 | 
						|
- Issue #16114: The subprocess module no longer provides a misleading error
 | 
						|
  message stating that args[0] did not exist when either the cwd or executable
 | 
						|
  keyword arguments specified a path that did not exist.
 | 
						|
 | 
						|
- Issue #16169: Fix ctypes.WinError()'s confusion between errno and winerror.
 | 
						|
 | 
						|
- Issue #16110: logging.fileConfig now accepts a pre-initialised ConfigParser
 | 
						|
  instance.
 | 
						|
 | 
						|
- Issue #1492704: shutil.copyfile() raises a distinct SameFileError now if
 | 
						|
  source and destination are the same file. Patch by Atsuo Ishimoto.
 | 
						|
 | 
						|
- Issue #13896: Make shelf instances work with 'with' as context managers.
 | 
						|
  Original patch by Filip Gruszczyński.
 | 
						|
 | 
						|
- Issue #15417: Add support for csh and fish in venv activation scripts.
 | 
						|
 | 
						|
- Issue #14377: ElementTree.write and some of the module-level functions have
 | 
						|
  a new parameter - *short_empty_elements*. It controls how elements with no
 | 
						|
  contents are emitted.
 | 
						|
 | 
						|
- Issue #16089: Allow ElementTree.TreeBuilder to work again with a non-Element
 | 
						|
  element_factory (fixes a regression in SimpleTAL).
 | 
						|
 | 
						|
- Issue #9650: List commonly used format codes in time.strftime and
 | 
						|
  time.strptime docsttings.  Original patch by Mike Hoy.
 | 
						|
 | 
						|
- Issue #15452: logging configuration socket listener now has a verify option
 | 
						|
  that allows an application to apply a verification function to the
 | 
						|
  received configuration data before it is acted upon.
 | 
						|
 | 
						|
- Issue #16034: Fix performance regressions in the new `bz2.BZ2File`
 | 
						|
  implementation.  Initial patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- `pty.spawn()` now returns the child process status returned by `os.waitpid()`.
 | 
						|
 | 
						|
- Issue #15756: `subprocess.poll()` now properly handles `errno.ECHILD` to
 | 
						|
  return a returncode of 0 when the child has already exited or cannot be waited
 | 
						|
  on.
 | 
						|
 | 
						|
- Issue #15323: Improve failure message of `Mock.assert_called_once_with()`.
 | 
						|
 | 
						|
- Issue #16064: ``unittest -m`` claims executable is "python", not "python3".
 | 
						|
 | 
						|
- Issue #12376: Pass on parameters in `TextTestResult.__init__()` super call.
 | 
						|
 | 
						|
- Issue #15222: Insert blank line after each message in mbox mailboxes.
 | 
						|
 | 
						|
- Issue #16013: Fix `csv.Reader` parsing issue with ending quote characters.
 | 
						|
  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #15421: Fix an OverflowError in `Calendar.itermonthdates()` after
 | 
						|
  `datetime.MAXYEAR`.  Patch by Cédric Krier.
 | 
						|
 | 
						|
- Issue #16112: platform.architecture does not correctly escape argument to
 | 
						|
  /usr/bin/file.  Patch by David Benjamin.
 | 
						|
 | 
						|
- Issue #15970: `xml.etree.ElementTree` now serializes correctly the empty HTML
 | 
						|
  elements 'meta' and 'param'.
 | 
						|
 | 
						|
- Issue #15842: The `SocketIO.{readable,writable,seekable}` methods now raise
 | 
						|
  ValueError when the file-like object is closed.  Patch by Alessandro Moura.
 | 
						|
 | 
						|
- Issue #15876: Fix a refleak in the `curses` module: window.encoding.
 | 
						|
 | 
						|
- Issue #15881: Fix `atexit` hook in `multiprocessing`.  Original patch by Chris
 | 
						|
  McDonough.
 | 
						|
 | 
						|
- Issue #15841: The readable(), writable() and seekable() methods of
 | 
						|
  `io.BytesIO` and `io.StringIO` objects now raise ValueError when the object
 | 
						|
  has been closed.  Patch by Alessandro Moura.
 | 
						|
 | 
						|
- Issue #15447: Use `subprocess.DEVNULL` in webbrowser, instead of opening
 | 
						|
  `os.devnull` explicitly and leaving it open.
 | 
						|
 | 
						|
- Issue #15509: `webbrowser.UnixBrowser` no longer passes empty arguments to
 | 
						|
  Popen when ``%action`` substitutions produce empty strings.
 | 
						|
 | 
						|
- Issue #12776, issue #11839: Call `argparse` type function (specified by
 | 
						|
  add_argument) only once. Before, the type function was called twice in the
 | 
						|
  case where the default was specified and the argument was given as well.  This
 | 
						|
  was especially problematic for the FileType type, as a default file would
 | 
						|
  always be opened, even if a file argument was specified on the command line.
 | 
						|
 | 
						|
- Issue #15906: Fix a regression in argparse caused by the preceding change,
 | 
						|
  when ``action='append'``, ``type='str'`` and ``default=[]``.
 | 
						|
 | 
						|
- Issue #16113: Added sha3 module based on the Keccak reference implementation
 | 
						|
  3.2. The `hashlib` module has four additional hash algorithms: `sha3_224`,
 | 
						|
  `sha3_256`, `sha3_384` and `sha3_512`. As part of the patch some common
 | 
						|
  code was moved from _hashopenssl.c to hashlib.h.
 | 
						|
 | 
						|
- ctypes.call_commethod was removed, since its only usage was in the defunct
 | 
						|
  samples directory.
 | 
						|
 | 
						|
- Issue #16692: Added TLSv1.1 and TLSv1.2 support for the ssl modules.
 | 
						|
 | 
						|
- Issue #16832: add abc.get_cache_token() to expose cache validity checking
 | 
						|
  support in ABCMeta.
 | 
						|
 | 
						|
IDLE
 | 
						|
----
 | 
						|
 | 
						|
- Issue #18429: Format / Format Paragraph, now works when comment blocks
 | 
						|
  are selected. As with text blocks, this works best when the selection
 | 
						|
  only includes complete lines.
 | 
						|
 | 
						|
- Issue #18226: Add docstrings and unittests for FormatParagraph.py.
 | 
						|
  Original patches by Todd Rovito and Phil Webster.
 | 
						|
 | 
						|
- Issue #18279: Format - Strip trailing whitespace no longer marks a file as
 | 
						|
  changed when it has not been changed. This fix followed the addition of a
 | 
						|
  test file originally written by Phil Webster (the issue's main goal).
 | 
						|
 | 
						|
- Issue #7136: In the Idle File menu, "New Window" is renamed "New File".
 | 
						|
  Patch by Tal Einat, Roget Serwy, and Todd Rovito.
 | 
						|
 | 
						|
- Remove dead imports of imp.
 | 
						|
 | 
						|
- Issue #18196: Avoid displaying spurious SystemExit tracebacks.
 | 
						|
 | 
						|
- Issue #5492: Avoid traceback when exiting IDLE caused by a race condition.
 | 
						|
 | 
						|
- Issue #17511: Keep IDLE find dialog open after clicking "Find Next".
 | 
						|
  Original patch by Sarah K.
 | 
						|
 | 
						|
- Issue #18055: Move IDLE off of imp and on to importlib.
 | 
						|
 | 
						|
- Issue #15392: Create a unittest framework for IDLE.
 | 
						|
  Initial patch by Rajagopalasarma Jayakrishnan.
 | 
						|
  See Lib/idlelib/idle_test/README.txt for how to run Idle tests.
 | 
						|
 | 
						|
- Issue #14146: Highlight source line while debugging on Windows.
 | 
						|
 | 
						|
- Issue #17838: Allow sys.stdin to be reassigned.
 | 
						|
 | 
						|
- Issue #13495: Avoid loading the color delegator twice in IDLE.
 | 
						|
 | 
						|
- Issue #17798: Allow IDLE to edit new files when specified on command line.
 | 
						|
 | 
						|
- Issue #14735: Update IDLE docs to omit "Control-z on Windows".
 | 
						|
 | 
						|
- Issue #17532: Always include Options menu for IDLE on OS X.
 | 
						|
  Patch by Guilherme Simões.
 | 
						|
 | 
						|
- Issue #17585: Fixed IDLE regression. Now closes when using exit() or quit().
 | 
						|
 | 
						|
- Issue #17657: Show full Tk version in IDLE's about dialog.
 | 
						|
  Patch by Todd Rovito.
 | 
						|
 | 
						|
- Issue #17613: Prevent traceback when removing syntax colorizer in IDLE.
 | 
						|
 | 
						|
- Issue #1207589: Backwards-compatibility patch for right-click menu in IDLE.
 | 
						|
 | 
						|
- Issue #16887: IDLE now accepts Cancel in tabify/untabify dialog box.
 | 
						|
 | 
						|
- Issue #17625: In IDLE, close the replace dialog after it is used.
 | 
						|
 | 
						|
- Issue #14254: IDLE now handles readline correctly across shell restarts.
 | 
						|
 | 
						|
- Issue #17614: IDLE no longer raises exception when quickly closing a file.
 | 
						|
 | 
						|
- Issue #6698: IDLE now opens just an editor window when configured to do so.
 | 
						|
 | 
						|
- Issue #8900: Using keyboard shortcuts in IDLE to open a file no longer
 | 
						|
  raises an exception.
 | 
						|
 | 
						|
- Issue #6649: Fixed missing exit status in IDLE. Patch by Guilherme Polo.
 | 
						|
 | 
						|
- Issue #17114: IDLE now uses non-strict config parser.
 | 
						|
 | 
						|
- Issue #9290: In IDLE the sys.std* streams now implement io.TextIOBase
 | 
						|
  interface and support all mandatory methods and properties.
 | 
						|
 | 
						|
- Issue #5066: Update IDLE docs. Patch by Todd Rovito.
 | 
						|
 | 
						|
- Issue #16829: IDLE printing no longer fails if there are spaces or other
 | 
						|
  special characters in the file path.
 | 
						|
 | 
						|
- Issue #16491: IDLE now prints chained exception tracebacks.
 | 
						|
 | 
						|
- Issue #16819: IDLE method completion now correctly works for bytes literals.
 | 
						|
 | 
						|
- Issue #16504: IDLE now catches SyntaxErrors raised by tokenizer. Patch by
 | 
						|
  Roger Serwy.
 | 
						|
 | 
						|
- Issue #16511: Use default IDLE width and height if config param is not valid.
 | 
						|
  Patch Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #1207589: Add Cut/Copy/Paste items to IDLE right click Context Menu
 | 
						|
  Patch by Todd Rovito.
 | 
						|
 | 
						|
- Issue #16123: IDLE - deprecate running without a subprocess.
 | 
						|
  Patch by Roger Serwy.
 | 
						|
 | 
						|
Tests
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #1666318: Add a test that shutil.copytree() retains directory
 | 
						|
  permissions.  Patch by Catherine Devlin.
 | 
						|
 | 
						|
- Issue #18273: move the tests in Lib/test/json_tests to Lib/test/test_json
 | 
						|
  and make them discoverable by unittest.  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Fix a fcntl test case on KFreeBSD, Debian #708653 (Petr Salinger).
 | 
						|
 | 
						|
- Issue #18396: Fix spurious test failure in test_signal on Windows when
 | 
						|
  faulthandler is enabled (Patch by Jeremy Kloth)
 | 
						|
 | 
						|
- Issue #17046: Fix broken test_executable_without_cwd in test_subprocess.
 | 
						|
 | 
						|
- Issue #15415: Add new temp_dir() and change_cwd() context managers to
 | 
						|
  test.support, and refactor temp_cwd() to use them.  Patch by Chris Jerdonek.
 | 
						|
 | 
						|
- Issue #15494: test.support is now a package rather than a module (Initial
 | 
						|
  patch by Indra Talip)
 | 
						|
 | 
						|
- Issue #17944: test_zipfile now discoverable and uses subclassing to
 | 
						|
  generate tests for different compression types.  Fixed a bug with skipping
 | 
						|
  some tests due to use of exhausted iterators.
 | 
						|
 | 
						|
- Issue #18266: test_largefile now works with unittest test discovery and
 | 
						|
  supports running only selected tests.  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #17767: test_locale now works with unittest test discovery.
 | 
						|
  Original patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #18375: Assume --randomize when --randseed is used for running the
 | 
						|
  testsuite.
 | 
						|
 | 
						|
- Issue #11185: Fix test_wait4 under AIX.  Patch by Sébastien Sablé.
 | 
						|
 | 
						|
- Issue #18207: Fix test_ssl for some versions of OpenSSL that ignore seconds
 | 
						|
  in ASN1_TIME fields.
 | 
						|
 | 
						|
- Issue #18094: test_uuid no longer reports skipped tests as passed.
 | 
						|
 | 
						|
- Issue #17992: Add timeouts to asyncore and asynchat tests so that they won't
 | 
						|
  accidentally hang.
 | 
						|
 | 
						|
- Issue #17833: Fix test_gdb failures seen on machines where debug symbols
 | 
						|
  for glibc are available (seen on PPC64 Linux).
 | 
						|
 | 
						|
- Issue #7855: Add tests for ctypes/winreg for issues found in IronPython.
 | 
						|
  Initial patch by Dino Viehland.
 | 
						|
 | 
						|
- Issue #11078: test___all__ now checks for duplicates in __all__.
 | 
						|
  Initial patch by R. David Murray.
 | 
						|
 | 
						|
- Issue #17712: Fix test_gdb failures on Ubuntu 13.04.
 | 
						|
 | 
						|
- Issue #17835: Fix test_io when the default OS pipe buffer size is larger
 | 
						|
  than one million bytes.
 | 
						|
 | 
						|
- Issue #17065: Use process-unique key for winreg tests to avoid failures if
 | 
						|
  test is run multiple times in parallel (eg: on a buildbot host).
 | 
						|
 | 
						|
- Issue #12820: add tests for the xml.dom.minicompat module.
 | 
						|
  Patch by John Chandler and Phil Connell.
 | 
						|
 | 
						|
- Issue #17691: test_univnewlines now works with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #17790: test_set now works with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #17789: test_random now works with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #17779: test_osx_env now works with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #17766: test_iterlen now works with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #17690: test_time now works with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #17692: test_sqlite now works with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #11995: test_pydoc doesn't import all sys.path modules anymore.
 | 
						|
 | 
						|
- Issue #17448: test_sax now skips if there are no xml parsers available
 | 
						|
  instead of raising an ImportError.
 | 
						|
 | 
						|
- Issue #11420: make test suite pass with -B/DONTWRITEBYTECODE set.
 | 
						|
  Initial patch by Thomas Wouters.
 | 
						|
 | 
						|
- Issue #10652: make tcl/tk tests run after __all__ test, patch by
 | 
						|
  Zachary Ware.
 | 
						|
 | 
						|
- Issue #11963: remove human verification from test_parser and test_subprocess.
 | 
						|
 | 
						|
- Issue #11732: add a new suppress_crash_popup() context manager to test.support
 | 
						|
  that disables crash popups on Windows and use it in test_faulthandler and
 | 
						|
  test_capi.
 | 
						|
 | 
						|
- Issue #13898: test_ssl no longer prints a spurious stack trace on Ubuntu.
 | 
						|
 | 
						|
- Issue #17283: Share code between `__main__.py` and `regrtest.py` in
 | 
						|
  `Lib/test`.
 | 
						|
 | 
						|
- Issue #17249: convert a test in test_capi to use unittest and reap threads.
 | 
						|
 | 
						|
- Issue #17107: Test client-side SNI support in urllib.request thanks to
 | 
						|
  the new server-side SNI support in the ssl module.  Initial patch by
 | 
						|
  Daniel Black.
 | 
						|
 | 
						|
- Issue #17041: Fix testing when Python is configured with the
 | 
						|
  --without-doc-strings.
 | 
						|
 | 
						|
- Issue #16923: Fix ResourceWarnings in test_ssl.
 | 
						|
 | 
						|
- Issue #15539: Added regression tests for Tools/scripts/pindent.py.
 | 
						|
 | 
						|
- Issue #17479: test_io now works with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #17066: test_robotparser now works with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #17334: test_index now works with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #17333: test_imaplib now works with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #17082: test_dbm* now work with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #17079: test_ctypes now works with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #17304: test_hash now works with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #17303: test_future* now work with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #17163: test_file now works with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #16925: test_configparser now works with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #16918: test_codecs now works with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #16919: test_crypt now works with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #16910: test_bytes, test_unicode, and test_userstring now work with
 | 
						|
  unittest test discovery.  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #16905: test_warnings now works with unittest test discovery.
 | 
						|
  Initial patch by Berker Peksag.
 | 
						|
 | 
						|
- Issue #16898: test_bufio now works with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #16888: test_array now works with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #16896: test_asyncore now works with unittest test discovery.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #16897: test_bisect now works with unittest test discovery.
 | 
						|
  Initial patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #16852: test_genericpath, test_posixpath, test_ntpath, and test_macpath
 | 
						|
  now work with unittest test discovery.  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #16748: test_heapq now works with unittest test discovery.
 | 
						|
 | 
						|
- Issue #10646: Tests rearranged for os.samefile/samestat to check for not
 | 
						|
  just symlinks but also hard links.
 | 
						|
 | 
						|
- Issue #15302: Switch regrtest from using getopt to using argparse.
 | 
						|
 | 
						|
- Issue #15324: Fix regrtest parsing of --fromfile, --match, and --randomize
 | 
						|
  options.
 | 
						|
 | 
						|
- Issue #16702: test_urllib2_localnet tests now correctly ignores proxies for
 | 
						|
  localhost tests.
 | 
						|
 | 
						|
- Issue #16664: Add regression tests for glob's behaviour concerning entries
 | 
						|
  starting with a ".".  Patch by Sebastian Kreft.
 | 
						|
 | 
						|
- Issue #13390: The ``-R`` option to regrtest now also checks for memory
 | 
						|
  allocation leaks, using :func:`sys.getallocatedblocks()`.
 | 
						|
 | 
						|
- Issue #16559: Add more tests for the json module, including some from the
 | 
						|
  official test suite at json.org.  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #16661: Fix the `os.getgrouplist()` test by not assuming that it gives
 | 
						|
  the same output as :command:`id -G`.
 | 
						|
 | 
						|
- Issue #16115: Add some tests for the executable argument to
 | 
						|
  subprocess.Popen().  Initial patch by Kushal Das.
 | 
						|
 | 
						|
- Issue #16126: PyErr_Format format mismatch in _testcapimodule.c.
 | 
						|
  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #15304: Fix warning message when `os.chdir()` fails inside
 | 
						|
  `test.support.temp_cwd()`.  Patch by Chris Jerdonek.
 | 
						|
 | 
						|
- Issue #15802: Fix test logic in `TestMaildir.test_create_tmp()`. Patch by
 | 
						|
  Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #15557: Added a test suite for the webbrowser module, thanks to Anton
 | 
						|
  Barkovsky.
 | 
						|
 | 
						|
- Issue #16698: Skip posix test_getgroups when built with OS X
 | 
						|
  deployment target prior to 10.6.
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #16067: Add description into MSI file to replace installer's
 | 
						|
  temporary name.
 | 
						|
 | 
						|
- Issue #18257: Fix readlink usage in python-config.  Install the python
 | 
						|
  version again on Darwin.
 | 
						|
 | 
						|
- Issue #18481: Add C coverage reporting with gcov and lcov. A new make target
 | 
						|
  "coverage-report" creates an instrumented Python build, runs unit tests
 | 
						|
  and creates a HTML. The report can be updated with "make coverage-lcov".
 | 
						|
 | 
						|
- Issue #17845: Clarified the message printed when some module are not built.
 | 
						|
 | 
						|
- Issue #18256: Compilation fix for recent AIX releases.  Patch by
 | 
						|
  David Edelsohn.
 | 
						|
 | 
						|
- Issue #17547: In configure, explicitly pass -Wformat for the benefit for GCC
 | 
						|
  4.8.
 | 
						|
 | 
						|
- Issue #15172: Document NASM 2.10+ as requirement for building OpenSSL 1.0.1
 | 
						|
  on Windows.
 | 
						|
 | 
						|
- Issue #17591: Use lowercase filenames when including Windows header files.
 | 
						|
  Patch by Roumen Petrov.
 | 
						|
 | 
						|
- Issue #17550: Fix the --enable-profiling configure switch.
 | 
						|
 | 
						|
- Issue #17425: Build with openssl 1.0.1d on Windows.
 | 
						|
 | 
						|
- Issue #16754: Fix the incorrect shared library extension on linux. Introduce
 | 
						|
  two makefile macros SHLIB_SUFFIX and EXT_SUFFIX. SO now has the value of
 | 
						|
  SHLIB_SUFFIX again (as in 2.x and 3.1). The SO macro is removed in 3.4.
 | 
						|
 | 
						|
- Issue #5033: Fix building of the sqlite3 extension module when the
 | 
						|
  SQLite library version has "beta" in it. Patch by Andreas Pelme.
 | 
						|
 | 
						|
- Issue #17228: Fix building without pymalloc.
 | 
						|
 | 
						|
- Issue #3718: Use AC_ARG_VAR to set MACHDEP in configure.ac.
 | 
						|
 | 
						|
- Issue #16235: Implement python-config as a shell script.
 | 
						|
 | 
						|
- Issue #16769: Remove outdated Visual Studio projects.
 | 
						|
 | 
						|
- Issue #17031: Fix running regen in cross builds.
 | 
						|
 | 
						|
- Issue #3754: fix typo in pthread AC_CACHE_VAL.
 | 
						|
 | 
						|
- Issue #15484: Fix _PYTHON_PROJECT_BASE for srcdir != builddir builds;
 | 
						|
  use _PYTHON_PROJECT_BASE in distutils/sysconfig.py.
 | 
						|
 | 
						|
- Drop support for Windows 2000 (changeset e52df05b496a).
 | 
						|
 | 
						|
- Issue #17029: Let h2py search the multiarch system include directory.
 | 
						|
 | 
						|
- Issue #16953: Fix socket module compilation on platforms with
 | 
						|
  HAVE_BROKEN_POLL. Patch by Jeffrey Armstrong.
 | 
						|
 | 
						|
- Issue #16320: Remove redundant Makefile dependencies for strings and bytes.
 | 
						|
 | 
						|
- Cross compiling needs host and build settings. configure no longer
 | 
						|
  creates a broken PYTHON_FOR_BUILD variable when --build is missing.
 | 
						|
 | 
						|
- Fix cross compiling issue in setup.py, ensure that lib_dirs and inc_dirs are
 | 
						|
  defined in cross compiling mode, too.
 | 
						|
 | 
						|
- Issue #16836: Enable IPv6 support even if IPv6 is disabled on the build host.
 | 
						|
 | 
						|
- Issue #16593: Have BSD 'make -s' do the right thing, thanks to Daniel Shahaf
 | 
						|
 | 
						|
- Issue #16262: fix out-of-src-tree builds, if mercurial is not installed.
 | 
						|
 | 
						|
- Issue #15298: ensure _sysconfigdata is generated in build directory, not
 | 
						|
  source directory.
 | 
						|
 | 
						|
- Issue #15833: Fix a regression in 3.3 that resulted in exceptions being
 | 
						|
  raised if importlib failed to write byte-compiled files.  This affected
 | 
						|
  attempts to build Python out-of-tree from a read-only source directory.
 | 
						|
 | 
						|
- Issue #15923: Fix a mistake in ``asdl_c.py`` that resulted in a TypeError
 | 
						|
  after 2801bf875a24 (see #15801).
 | 
						|
 | 
						|
- Issue #16135: Remove OS/2 support.
 | 
						|
 | 
						|
- Issue #15819: Make sure we can build Python out-of-tree from a read-only
 | 
						|
  source directory.  (Somewhat related to issue #9860.)
 | 
						|
 | 
						|
- Issue #15587: Enable Tk high-resolution text rendering on Macs with
 | 
						|
  Retina displays.  Applies to Tkinter apps, such as IDLE, on OS X
 | 
						|
  framework builds linked with Cocoa Tk 8.5.
 | 
						|
 | 
						|
- Issue #17161: make install now also installs a python3 man page.
 | 
						|
 | 
						|
C-API
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #18351: Fix various issues in a function in importlib provided to help
 | 
						|
  PyImport_ExecCodeModuleWithPathnames() (and thus by extension
 | 
						|
  PyImport_ExecCodeModule() and PyImport_ExecCodeModuleEx()).
 | 
						|
 | 
						|
- Issue #9369: The types of `char*` arguments of PyObject_CallFunction() and
 | 
						|
  PyObject_CallMethod() now changed to `const char*`.  Based on patches by
 | 
						|
  Jörg Müller and Lars Buitinck.
 | 
						|
 | 
						|
- Issue #17206: Py_CLEAR(), Py_DECREF(), Py_XINCREF() and Py_XDECREF() now
 | 
						|
  expand their arguments once instead of multiple times.  Patch written by Illia
 | 
						|
  Polosukhin.
 | 
						|
 | 
						|
- Issue #17522: Add the PyGILState_Check() API.
 | 
						|
 | 
						|
- Issue #17327: Add PyDict_SetDefault.
 | 
						|
 | 
						|
- Issue #16881: Fix Py_ARRAY_LENGTH macro for GCC < 3.1.
 | 
						|
 | 
						|
- Issue #16505: Remove unused Py_TPFLAGS_INT_SUBCLASS.
 | 
						|
 | 
						|
- Issue #16086: PyTypeObject.tp_flags and PyType_Spec.flags are now unsigned
 | 
						|
  (unsigned long and unsigned int) to avoid an undefined behaviour with
 | 
						|
  Py_TPFLAGS_TYPE_SUBCLASS ((1 << 31). PyType_GetFlags() result type is
 | 
						|
  now unsigned too (unsigned long, instead of long).
 | 
						|
 | 
						|
- Issue #16166: Add PY_LITTLE_ENDIAN and PY_BIG_ENDIAN macros and unified
 | 
						|
  endianness detection and handling.
 | 
						|
 | 
						|
Documentation
 | 
						|
-------------
 | 
						|
 | 
						|
- Issue #17701: Improving strftime documentation.
 | 
						|
 | 
						|
- Issue #18440: Clarify that `hash()` can truncate the value returned from an
 | 
						|
  object's custom `__hash__()` method.
 | 
						|
 | 
						|
- Issue #17844: Add links to encoders and decoders for bytes-to-bytes codecs.
 | 
						|
 | 
						|
- Issue #14097: improve the "introduction" page of the tutorial.
 | 
						|
 | 
						|
- Issue #17977: The documentation for the cadefault argument's default value
 | 
						|
  in urllib.request.urlopen() is fixed to match the code.
 | 
						|
 | 
						|
- Issue #6696: add documentation for the Profile objects, and improve
 | 
						|
  profile/cProfile docs.  Patch by Tom Pinckney.
 | 
						|
 | 
						|
- Issue #15940: Specify effect of locale on time functions.
 | 
						|
 | 
						|
- Issue #17538: Document XML vulnerabilties
 | 
						|
 | 
						|
- Issue #16642: sched.scheduler timefunc initial default is time.monotonic.
 | 
						|
  Patch by Ramchandra Apte
 | 
						|
 | 
						|
- Issue #17047: remove doubled words in docs and docstrings
 | 
						|
  reported by Serhiy Storchaka and Matthew Barnett.
 | 
						|
 | 
						|
- Issue #15465: Document the versioning macros in the C API docs rather than
 | 
						|
  the standard library docs. Patch by Kushal Das.
 | 
						|
 | 
						|
- Issue #16406: Combine the pages for uploading and registering to PyPI.
 | 
						|
 | 
						|
- Issue #16403: Document how distutils uses the maintainer field in
 | 
						|
  PKG-INFO. Patch by Jyrki Pulliainen.
 | 
						|
 | 
						|
- Issue #16695: Document how glob handles filenames starting with a
 | 
						|
  dot. Initial patch by Jyrki Pulliainen.
 | 
						|
 | 
						|
- Issue #8890: Stop advertising an insecure practice by replacing uses
 | 
						|
  of the /tmp directory with better alternatives in the documentation.
 | 
						|
  Patch by Geoff Wilson.
 | 
						|
 | 
						|
- Issue #17203: add long option names to unittest discovery docs.
 | 
						|
 | 
						|
- Issue #13094: add "Why do lambdas defined in a loop with different values
 | 
						|
  all return the same result?" programming FAQ.
 | 
						|
 | 
						|
- Issue #14901: Update portions of the Windows FAQ.
 | 
						|
  Patch by Ashish Nitin Patil.
 | 
						|
 | 
						|
- Issue #16267: Better document the 3.3+ approach to combining
 | 
						|
  @abstractmethod with @staticmethod, @classmethod and @property
 | 
						|
 | 
						|
- Issue #15209: Clarify exception chaining description in exceptions module
 | 
						|
  documentation
 | 
						|
 | 
						|
- Issue #15990: Improve argument/parameter documentation.
 | 
						|
 | 
						|
- Issue #16209: Move the documentation for the str built-in function to a new
 | 
						|
  str class entry in the "Text Sequence Type" section.
 | 
						|
 | 
						|
- Issue #13538: Improve str() and object.__str__() documentation.
 | 
						|
 | 
						|
- Issue #16489: Make it clearer that importlib.find_loader() needs parent
 | 
						|
  packages to be explicitly imported.
 | 
						|
 | 
						|
- Issue #16400: Update the description of which versions of a given package
 | 
						|
  PyPI displays.
 | 
						|
 | 
						|
- Issue #15677: Document that zlib and gzip accept a compression level of 0 to
 | 
						|
  mean 'no compression'. Patch by Brian Brazil.
 | 
						|
 | 
						|
- Issue #16197: Update winreg docstrings and documentation to match code.
 | 
						|
  Patch by Zachary Ware.
 | 
						|
 | 
						|
- Issue #8040: added a version switcher to the documentation.  Patch by
 | 
						|
  Yury Selivanov.
 | 
						|
 | 
						|
- Issue #16241: Document -X faulthandler command line option.
 | 
						|
  Patch by Marek Šuppa.
 | 
						|
 | 
						|
- Additional comments and some style changes in the concurrent.futures URL
 | 
						|
  retrieval example
 | 
						|
 | 
						|
- Issue #16115: Improve subprocess.Popen() documentation around args, shell,
 | 
						|
  and executable arguments.
 | 
						|
 | 
						|
- Issue #13498: Clarify docs of os.makedirs()'s exist_ok argument.  Done with
 | 
						|
  great native-speaker help from R. David Murray.
 | 
						|
 | 
						|
- Issue #15533: Clarify docs and add tests for `subprocess.Popen()`'s cwd
 | 
						|
  argument.
 | 
						|
 | 
						|
- Issue #15979: Improve timeit documentation.
 | 
						|
 | 
						|
- Issue #16036: Improve documentation of built-in `int()`'s signature and
 | 
						|
  arguments.
 | 
						|
 | 
						|
- Issue #15935: Clarification of `argparse` docs, re: add_argument() type and
 | 
						|
  default arguments.  Patch contributed by Chris Jerdonek.
 | 
						|
 | 
						|
- Issue #11964: Document a change in v3.2 to the behavior of the indent
 | 
						|
  parameter of json encoding operations.
 | 
						|
 | 
						|
- Issue #15116: Remove references to appscript as it is no longer being
 | 
						|
  supported.
 | 
						|
 | 
						|
Tools/Demos
 | 
						|
-----------
 | 
						|
 | 
						|
- Issue #18817: Fix a resource warning in Lib/aifc.py demo.  Patch by
 | 
						|
  Vajrasky Kok.
 | 
						|
 | 
						|
- Issue #18439: Make patchcheck work on Windows for ACKS, NEWS.
 | 
						|
 | 
						|
- Issue #18448: Fix a typo in Tools/demo/eiffel.py.
 | 
						|
 | 
						|
- Issue #18457: Fixed saving of formulas and complex numbers in
 | 
						|
  Tools/demo/ss1.py.
 | 
						|
 | 
						|
- Issue #18449: Make Tools/demo/ss1.py work again on Python 3.  Patch by
 | 
						|
  Févry Thibault.
 | 
						|
 | 
						|
- Issue #12990: The "Python Launcher" on OSX could not launch python scripts
 | 
						|
  that have paths that include wide characters.
 | 
						|
 | 
						|
- Issue #15239: Make mkstringprep.py work again on Python 3.
 | 
						|
 | 
						|
- Issue #17028: Allowed Python arguments to be supplied to the Windows
 | 
						|
  launcher.
 | 
						|
 | 
						|
- Issue #17156: pygettext.py now detects the encoding of source files and
 | 
						|
  correctly writes and escapes non-ascii characters.
 | 
						|
 | 
						|
- Issue #15539: Fix a number of bugs in Tools/scripts/pindent.py.  Now
 | 
						|
  pindent.py works with a "with" statement.  pindent.py no longer produces
 | 
						|
  improper indentation.  pindent.py now works with continued lines broken after
 | 
						|
  "class" or "def" keywords and with continuations at the start of line.
 | 
						|
 | 
						|
- Issue #11797: Add a 2to3 fixer that maps reload() to imp.reload().
 | 
						|
 | 
						|
- Issue #10966: Remove the concept of unexpected skipped tests.
 | 
						|
 | 
						|
- Issue #9893: Removed the Misc/Vim directory.
 | 
						|
 | 
						|
- Removed the Misc/TextMate directory.
 | 
						|
 | 
						|
- Issue #16245: Add the Tools/scripts/parse_html5_entities.py script to parse
 | 
						|
  the list of HTML5 entities and update the html.entities.html5 dictionary.
 | 
						|
 | 
						|
- Issue #15378: Fix Tools/unicode/comparecodecs.py.  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #16549: Make json.tool work again on Python 3 and add tests.
 | 
						|
  Initial patch by Berker Peksag and Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #13301: use ast.literal_eval() instead of eval() in Tools/i18n/msgfmt.py
 | 
						|
  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
Windows
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #18569: The installer now adds .py to the PATHEXT variable when extensions
 | 
						|
  are registered. Patch by Paul Moore.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.3.0?
 | 
						|
===========================
 | 
						|
 | 
						|
*Release date: 29-Sep-2012*
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #16046: Fix loading sourceless legacy .pyo files.
 | 
						|
 | 
						|
- Issue #16060: Fix refcounting bug when `__trunc__()` returns an object whose
 | 
						|
  `__int__()` gives a non-integer.  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
Extension Modules
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #16012: Fix a regression in pyexpat. The parser's `UseForeignDTD()`
 | 
						|
  method doesn't require an argument again.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.3.0 Release Candidate 3?
 | 
						|
===============================================
 | 
						|
 | 
						|
*Release date: 23-Sep-2012*
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #15900: Fix reference leak in `PyUnicode_TranslateCharmap()`.
 | 
						|
 | 
						|
- Issue #15926: Fix crash after multiple reinitializations of the interpreter.
 | 
						|
 | 
						|
- Issue #15895: Fix FILE pointer leak in one error branch of
 | 
						|
  `PyRun_SimpleFileExFlags()` when filename points to a pyc/pyo file, closeit is
 | 
						|
  false an and set_main_loader() fails.
 | 
						|
 | 
						|
- Fixes for a few crash and memory leak regressions found by Coverity.
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #15882: Change `_decimal` to accept any coefficient tuple when
 | 
						|
  constructing infinities. This is done for backwards compatibility with
 | 
						|
  decimal.py: Infinity coefficients are undefined in _decimal (in accordance
 | 
						|
  with the specification).
 | 
						|
 | 
						|
- Issue #15925: Fix a regression in `email.util` where the `parsedate()` and
 | 
						|
  `parsedate_tz()` functions did not return None anymore when the argument could
 | 
						|
  not be parsed.
 | 
						|
 | 
						|
Extension Modules
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #15973: Fix a segmentation fault when comparing datetime timezone
 | 
						|
  objects.
 | 
						|
 | 
						|
- Issue #15977: Fix memory leak in Modules/_ssl.c when the function
 | 
						|
  _set_npn_protocols() is called multiple times, thanks to Daniel Sommermann.
 | 
						|
 | 
						|
- Issue #15969: `faulthandler` module: rename dump_tracebacks_later() to
 | 
						|
  dump_traceback_later() and cancel_dump_tracebacks_later() to
 | 
						|
  cancel_dump_traceback_later().
 | 
						|
 | 
						|
- _decimal module: use only C 89 style comments.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.3.0 Release Candidate 2?
 | 
						|
===============================================
 | 
						|
 | 
						|
*Release date: 09-Sep-2012*
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #13992: The trashcan mechanism is now thread-safe.  This eliminates
 | 
						|
  sporadic crashes in multi-thread programs when several long deallocator chains
 | 
						|
  ran concurrently and involved subclasses of built-in container types.
 | 
						|
 | 
						|
- Issue #15784: Modify `OSError`.__str__() to better distinguish between errno
 | 
						|
  error numbers and Windows error numbers.
 | 
						|
 | 
						|
- Issue #15781: Fix two small race conditions in import's module locking.
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #17158: Add 'symbols' to help() welcome message; clarify
 | 
						|
  'modules spam' messages.
 | 
						|
 | 
						|
- Issue #15847: Fix a regression in argparse, which did not accept tuples as
 | 
						|
  argument lists anymore.
 | 
						|
 | 
						|
- Issue #15828: Restore support for C extensions in `imp.load_module()`.
 | 
						|
 | 
						|
- Issue #15340: Fix importing the random module when ``/dev/urandom`` cannot be
 | 
						|
  opened.  This was a regression caused by the hash randomization patch.
 | 
						|
 | 
						|
- Issue #10650: Deprecate the watchexp parameter of the `Decimal.quantize()`
 | 
						|
  method.
 | 
						|
 | 
						|
- Issue #15785: Modify `window.get_wch()` API of the curses module: return a
 | 
						|
  character for most keys, and an integer for special keys, instead of always
 | 
						|
  returning an integer. So it is now possible to distinguish special keys like
 | 
						|
  keypad keys.
 | 
						|
 | 
						|
- Issue #14223: Fix `window.addch()` of the curses module for special characters
 | 
						|
  like curses.ACS_HLINE: the Python function addch(int) and addch(bytes) is now
 | 
						|
  calling the C function waddch()/mvwaddch() (as it was done in Python 3.2),
 | 
						|
  instead of wadd_wch()/mvwadd_wch(). The Python function addch(str) is still
 | 
						|
  calling the C function wadd_wch()/mvwadd_wch() if the Python curses is linked
 | 
						|
  to libncursesw.
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #15822: Really ensure 2to3 grammar pickles are properly installed
 | 
						|
  (replaces fixes for Issue #15645).
 | 
						|
 | 
						|
Documentation
 | 
						|
-------------
 | 
						|
 | 
						|
- Issue #15814: The memoryview enhancements in 3.3.0 accidentally permitted the
 | 
						|
  hashing of multi-dimensional memorviews and memoryviews with multi-byte item
 | 
						|
  formats. The intended restrictions have now been documented - they will be
 | 
						|
  correctly enforced in 3.3.1.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.3.0 Release Candidate 1?
 | 
						|
===============================================
 | 
						|
 | 
						|
*Release date: 25-Aug-2012*
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #15573: memoryview comparisons are now performed by value with full
 | 
						|
  support for any valid struct module format definition.
 | 
						|
 | 
						|
- Issue #15316: When an item in the fromlist for `__import__()` doesn't exist,
 | 
						|
  don't raise an error, but if an exception is raised as part of an import do
 | 
						|
  let that propagate.
 | 
						|
 | 
						|
- Issue #15778: Ensure that ``str(ImportError(msg))`` returns a str even when
 | 
						|
  msg isn't a str.
 | 
						|
 | 
						|
- Issue #2051: Source file permission bits are once again correctly copied to
 | 
						|
  the cached bytecode file. (The migration to importlib reintroduced this
 | 
						|
  problem because these was no regression test. A test has been added as part of
 | 
						|
  this patch)
 | 
						|
 | 
						|
- Issue #15761: Fix crash when ``PYTHONEXECUTABLE`` is set on Mac OS X.
 | 
						|
 | 
						|
- Issue #15726: Fix incorrect bounds checking in PyState_FindModule.  Patch by
 | 
						|
  Robin Schreiber.
 | 
						|
 | 
						|
- Issue #15604: Update uses of `PyObject_IsTrue()` to check for and handle
 | 
						|
  errors correctly.  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #14846: `importlib.FileFinder` now handles the case where the directory
 | 
						|
  being searched is removed after a previous import attempt.
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #13370: Ensure that ctypes works on Mac OS X when Python is compiled
 | 
						|
  using the clang compiler.
 | 
						|
 | 
						|
- Issue #13072: The array module's 'u' format code is now deprecated and will be
 | 
						|
  removed in Python 4.0.
 | 
						|
 | 
						|
- Issue #15544: Fix Decimal.__float__ to work with payload-carrying NaNs.
 | 
						|
 | 
						|
- Issue #15776: Allow pyvenv to work in existing directory with --clean.
 | 
						|
 | 
						|
- Issue #15249: email's BytesGenerator now correctly mangles From lines (when
 | 
						|
  requested) even if the body contains undecodable bytes.
 | 
						|
 | 
						|
- Issue #15777: Fix a refleak in _posixsubprocess.
 | 
						|
 | 
						|
- Issue ##665194: Update `email.utils.localtime` to use datetime.astimezone and
 | 
						|
  correctly handle historic changes in UTC offsets.
 | 
						|
 | 
						|
- Issue #15199: Fix JavaScript's default MIME type to application/javascript.
 | 
						|
  Patch by Bohuslav Kabrda.
 | 
						|
 | 
						|
- Issue #12643: `code.InteractiveConsole` now respects `sys.excepthook` when
 | 
						|
  displaying exceptions.  Patch by Aaron Iles.
 | 
						|
 | 
						|
- Issue #13579: `string.Formatter` now understands the 'a' conversion specifier.
 | 
						|
 | 
						|
- Issue #15595: Fix ``subprocess.Popen(universal_newlines=True)`` for certain
 | 
						|
  locales (utf-16 and utf-32 family). Patch by Chris Jerdonek.
 | 
						|
 | 
						|
- Issue #15477: In cmath and math modules, add workaround for platforms whose
 | 
						|
  system-supplied log1p function doesn't respect signs of zeros.
 | 
						|
 | 
						|
- Issue #15715: `importlib.__import__()` will silence an ImportError when the
 | 
						|
  use of fromlist leads to a failed import.
 | 
						|
 | 
						|
- Issue #14669: Fix pickling of connections and sockets on Mac OS X by
 | 
						|
  sending/receiving an acknowledgment after file descriptor transfer.
 | 
						|
  TestPicklingConnection has been reenabled for Mac OS X.
 | 
						|
 | 
						|
- Issue #11062: Fix adding a message from file to Babyl mailbox.
 | 
						|
 | 
						|
- Issue #15646: Prevent equivalent of a fork bomb when using `multiprocessing`
 | 
						|
  on Windows without the ``if __name__ == '__main__'`` idiom.
 | 
						|
 | 
						|
IDLE
 | 
						|
----
 | 
						|
 | 
						|
- Issue #15678: Fix IDLE menus when started from OS X command line (3.3.0b2
 | 
						|
  regression).
 | 
						|
 | 
						|
Documentation
 | 
						|
-------------
 | 
						|
 | 
						|
- Touched up the Python 2 to 3 porting guide.
 | 
						|
 | 
						|
- Issue #14674: Add a discussion of the `json` module's standard compliance.
 | 
						|
  Patch by Chris Rebert.
 | 
						|
 | 
						|
- Create a 'Concurrent Execution' section in the docs, and split up the
 | 
						|
  'Optional Operating System Services' section to use a more user-centric
 | 
						|
  classification scheme (splitting them across the new CE section, IPC and text
 | 
						|
  processing). Operating system limitations can be reflected with the Sphinx
 | 
						|
  ``:platform:`` tag, it doesn't make sense as part of the Table of Contents.
 | 
						|
 | 
						|
- Issue #4966: Bring the sequence docs up to date for the Py3k transition and
 | 
						|
  the many language enhancements since they were original written.
 | 
						|
 | 
						|
- The "path importer" misnomer has been replaced with Eric Snow's
 | 
						|
  more-awkward-but-at-least-not-wrong suggestion of "path based finder" in the
 | 
						|
  import system reference docs.
 | 
						|
 | 
						|
- Issue #15640: Document `importlib.abc.Finder` as deprecated.
 | 
						|
 | 
						|
- Issue #15630: Add an example for "continue" stmt in the tutorial.  Patch by
 | 
						|
  Daniel Ellis.
 | 
						|
 | 
						|
Tests
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #15747: ZFS always returns EOPNOTSUPP when attempting to set the
 | 
						|
  UF_IMMUTABLE flag (via either chflags or lchflags); refactor affected tests in
 | 
						|
  test_posix.py to account for this.
 | 
						|
 | 
						|
- Issue #15285: Refactor the approach for testing connect timeouts using two
 | 
						|
  external hosts that have been configured specifically for this type of test.
 | 
						|
 | 
						|
- Issue #15743: Remove the deprecated method usage in `urllib` tests. Patch by
 | 
						|
  Jeff Knupp.
 | 
						|
 | 
						|
- Issue #15615: Add some tests for the `json` module's handling of invalid input
 | 
						|
  data.  Patch by Kushal Das.
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- Output lib files for PGO build into PGO directory.
 | 
						|
 | 
						|
- Pick up 32-bit launcher from PGO directory on 64-bit PGO build.
 | 
						|
 | 
						|
- Drop ``PC\python_nt.h`` as it's not used.  Add input dependency on custom
 | 
						|
  build step.
 | 
						|
 | 
						|
- Issue #15511: Drop explicit dependency on pythonxy.lib from _decimal amd64
 | 
						|
  configuration.
 | 
						|
 | 
						|
- Add missing PGI/PGO configurations for pywlauncher.
 | 
						|
 | 
						|
- Issue #15645: Ensure 2to3 grammar pickles are properly installed.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.3.0 Beta 2?
 | 
						|
==================================
 | 
						|
 | 
						|
*Release date: 12-Aug-2012*
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #15568: Fix the return value of ``yield from`` when StopIteration is
 | 
						|
  raised by a custom iterator.
 | 
						|
 | 
						|
- Issue #13119: `sys.stdout` and `sys.stderr` are now using "\r\n" newline on
 | 
						|
  Windows, as Python 2.
 | 
						|
 | 
						|
- Issue #15534: Fix the fast-search function for non-ASCII Unicode strings.
 | 
						|
 | 
						|
- Issue #15508: Fix the docstring for `__import__()` to have the proper default
 | 
						|
  value of 0 for 'level' and to not mention negative levels since they are not
 | 
						|
  supported.
 | 
						|
 | 
						|
- Issue #15425: Eliminated traceback noise from more situations involving
 | 
						|
  importlib.
 | 
						|
 | 
						|
- Issue #14578: Support modules registered in the Windows registry again.
 | 
						|
 | 
						|
- Issue #15466: Stop using TYPE_INT64 in marshal, to make importlib.h (and other
 | 
						|
  byte code files) equal between 32-bit and 64-bit systems.
 | 
						|
 | 
						|
- Issue #1692335: Move initial exception args assignment to
 | 
						|
  `BaseException.__new__()` to help pickling of naive subclasses.
 | 
						|
 | 
						|
- Issue #12834: Fix `PyBuffer_ToContiguous()` for non-contiguous arrays.
 | 
						|
 | 
						|
- Issue #15456: Fix code `__sizeof__()` after #12399 change.  Patch by Serhiy
 | 
						|
  Storchaka.
 | 
						|
 | 
						|
- Issue #15404: Refleak in PyMethodObject repr.
 | 
						|
 | 
						|
- Issue #15394: An issue in `PyModule_Create()` that caused references to be
 | 
						|
  leaked on some error paths has been fixed.  Patch by Julia Lawall.
 | 
						|
 | 
						|
- Issue #15368: An issue that caused bytecode generation to be non-deterministic
 | 
						|
  has been fixed.
 | 
						|
 | 
						|
- Issue #15202: Consistently use the name "follow_symlinks" for new parameters
 | 
						|
  in os and shutil functions.
 | 
						|
 | 
						|
- Issue #15314: ``__main__.__loader__`` is now set correctly during interpreter
 | 
						|
  startup.
 | 
						|
 | 
						|
- Issue #15111: When a module imported using 'from import' has an ImportError
 | 
						|
  inside itself, don't mask that fact behind a generic ImportError for the
 | 
						|
  module itself.
 | 
						|
 | 
						|
- Issue #15293: Add GC support to the AST base node type.
 | 
						|
 | 
						|
- Issue #15291: Fix a memory leak where AST nodes where not properly
 | 
						|
  deallocated.
 | 
						|
 | 
						|
- Issue #15110: Fix the tracebacks generated by "import xxx" to not show the
 | 
						|
  importlib stack frames.
 | 
						|
 | 
						|
- Issue #16369: Global PyTypeObjects not initialized with PyType_Ready(...).
 | 
						|
 | 
						|
- Issue #15020: The program name used to search for Python's path is now
 | 
						|
  "python3" under Unix, not "python".
 | 
						|
 | 
						|
- Issue #15897: zipimport.c doesn't check return value of fseek().
 | 
						|
  Patch by Felipe Cruz.
 | 
						|
 | 
						|
- Issue #15033: Fix the exit status bug when modules invoked using -m switch,
 | 
						|
  return the proper failure return value (1). Patch contributed by Jeff Knupp.
 | 
						|
 | 
						|
- Issue #15229: An `OSError` subclass whose __init__ doesn't call back
 | 
						|
  OSError.__init__ could produce incomplete instances, leading to crashes when
 | 
						|
  calling str() on them.
 | 
						|
 | 
						|
- Issue #15307: Virtual environments now use symlinks with framework builds on
 | 
						|
  Mac OS X, like other POSIX builds.
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #14590: configparser now correctly strips inline comments when delimiter
 | 
						|
  occurs earlier without preceding space.
 | 
						|
 | 
						|
- Issue #15424: Add a `__sizeof__()` implementation for array objects.  Patch by
 | 
						|
  Ludwig Hähne.
 | 
						|
 | 
						|
- Issue #15576: Allow extension modules to act as a package's __init__ module.
 | 
						|
 | 
						|
- Issue #15502: Have `importlib.invalidate_caches()` work on `sys.meta_path`
 | 
						|
  instead of `sys.path_importer_cache`.
 | 
						|
 | 
						|
- Issue #15163: Pydoc shouldn't list __loader__ as module data.
 | 
						|
 | 
						|
- Issue #15471: Do not use mutable objects as defaults for
 | 
						|
  `importlib.__import__()`.
 | 
						|
 | 
						|
- Issue #15559: To avoid a problematic failure mode when passed to the bytes
 | 
						|
  constructor, objects in the ipaddress module no longer implement `__index__()`
 | 
						|
  (they still implement `__int__()` as appropriate).
 | 
						|
 | 
						|
- Issue #15546: Fix handling of pathological input data in the peek() and
 | 
						|
  read1() methods of the BZ2File, GzipFile and LZMAFile classes.
 | 
						|
 | 
						|
- Issue #12655: Instead of requiring a custom type, `os.sched_getaffinity()` and
 | 
						|
  `os.sched_setaffinity()` now use regular sets of integers to represent the
 | 
						|
  CPUs a process is restricted to.
 | 
						|
 | 
						|
- Issue #15538: Fix compilation of the `socket.getnameinfo()` /
 | 
						|
  `socket.getaddrinfo()` emulation code.  Patch by Philipp Hagemeister.
 | 
						|
 | 
						|
- Issue #15519: Properly expose WindowsRegistryFinder in importlib (and use the
 | 
						|
  correct term for it).  Original patch by Eric Snow.
 | 
						|
 | 
						|
- Issue #15502: Bring the importlib ABCs into line with the current state of the
 | 
						|
  import protocols given PEP 420.  Original patch by Eric Snow.
 | 
						|
 | 
						|
- Issue #15499: Launching a webbrowser in Unix used to sleep for a few seconds.
 | 
						|
  Original patch by Anton Barkovsky.
 | 
						|
 | 
						|
- Issue #15463: The faulthandler module truncates strings to 500 characters,
 | 
						|
  instead of 100, to be able to display long file paths.
 | 
						|
 | 
						|
- Issue #6056: Make `multiprocessing` use setblocking(True) on the sockets it
 | 
						|
  uses.  Original patch by J Derek Wilson.
 | 
						|
 | 
						|
- Issue #15364: Fix sysconfig.get_config_var('srcdir') to be an absolute path.
 | 
						|
 | 
						|
- Issue #15413: `os.times()` had disappeared under Windows.
 | 
						|
 | 
						|
- Issue #15402: An issue in the struct module that caused `sys.getsizeof()` to
 | 
						|
  return incorrect results for struct.Struct instances has been fixed.  Initial
 | 
						|
  patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #15232: When mangle_from is True, `email.Generator` now correctly
 | 
						|
  mangles lines that start with 'From ' that occur in a MIME preamble or
 | 
						|
  epilogue.
 | 
						|
 | 
						|
- Issue #15094: Incorrectly placed #endif in _tkinter.c.  Patch by Serhiy
 | 
						|
  Storchaka.
 | 
						|
 | 
						|
- Issue #13922: `argparse` no longer incorrectly strips '--'s that appear after
 | 
						|
  the first one.
 | 
						|
 | 
						|
- Issue #12353: `argparse` now correctly handles null argument values.
 | 
						|
 | 
						|
- Issue #10017, issue #14998: Fix TypeError using pprint on dictionaries with
 | 
						|
  user-defined types as keys or other unorderable keys.
 | 
						|
 | 
						|
- Issue #15397: `inspect.getmodulename()` is now based directly on importlib via
 | 
						|
  a new `importlib.machinery.all_suffixes()` API.
 | 
						|
 | 
						|
- Issue #14635: `telnetlib` will use poll() rather than select() when possible to
 | 
						|
  avoid failing due to the select() file descriptor limit.
 | 
						|
 | 
						|
- Issue #15180: Clarify posixpath.join() error message when mixing str & bytes.
 | 
						|
 | 
						|
- Issue #15343: pkgutil now includes an iter_importer_modules implementation for
 | 
						|
  importlib.machinery.FileFinder (similar to the way it already handled
 | 
						|
  zipimport.zipimporter).
 | 
						|
 | 
						|
- Issue #15314: runpy now sets __main__.__loader__ correctly.
 | 
						|
 | 
						|
- Issue #15357: The import emulation in pkgutil is now deprecated. pkgutil uses
 | 
						|
  importlib internally rather than the emulation.
 | 
						|
 | 
						|
- Issue #15233: Python now guarantees that callables registered with the atexit
 | 
						|
  module will be called in a deterministic order.
 | 
						|
 | 
						|
- Issue #15238: `shutil.copystat()` now copies Linux "extended attributes".
 | 
						|
 | 
						|
- Issue #15230: runpy.run_path now correctly sets __package__ as described in
 | 
						|
  the documentation.
 | 
						|
 | 
						|
- Issue #15315: Support VS 2010 in distutils cygwincompiler.
 | 
						|
 | 
						|
- Issue #15294: Fix a regression in pkgutil.extend_path()'s handling of nested
 | 
						|
  namespace packages.
 | 
						|
 | 
						|
- Issue #15056: `imp.cache_from_source()` and `imp.source_from_cache()` raise
 | 
						|
  NotImplementedError when `sys.implementation.cache_tag` is set to None.
 | 
						|
 | 
						|
- Issue #15256: Grammatical mistake in exception raised by `imp.find_module()`.
 | 
						|
 | 
						|
- Issue #5931: `wsgiref` environ variable SERVER_SOFTWARE will specify an
 | 
						|
  implementation specific term like CPython, Jython instead of generic "Python".
 | 
						|
 | 
						|
- Issue #13248: Remove obsolete argument "max_buffer_size" of BufferedWriter and
 | 
						|
  BufferedRWPair, from the io module.
 | 
						|
 | 
						|
- Issue #13248: Remove obsolete argument "version" of `argparse.ArgumentParser`.
 | 
						|
 | 
						|
- Issue #14814: Implement more consistent ordering and sorting behaviour for
 | 
						|
  ipaddress objects.
 | 
						|
 | 
						|
- Issue #14814: `ipaddress` network objects correctly return NotImplemented when
 | 
						|
  compared to arbitrary objects instead of raising TypeError.
 | 
						|
 | 
						|
- Issue #14990: Correctly fail with SyntaxError on invalid encoding declaration.
 | 
						|
 | 
						|
- Issue #14814: `ipaddress` now provides more informative error messages when
 | 
						|
  constructing instances directly (changes permitted during beta due to
 | 
						|
  provisional API status).
 | 
						|
 | 
						|
- Issue #15247: `io.FileIO` now raises an error when given a file descriptor
 | 
						|
  pointing to a directory.
 | 
						|
 | 
						|
- Issue #15261: Stop os.stat(fd) crashing on Windows when fd not open.
 | 
						|
 | 
						|
- Issue #15166: Implement `imp.get_tag()` using `sys.implementation.cache_tag`.
 | 
						|
 | 
						|
- Issue #15210: Catch KeyError when `importlib.__init__()` can't find
 | 
						|
  _frozen_importlib in sys.modules, not ImportError.
 | 
						|
 | 
						|
- Issue #15030: `importlib.abc.PyPycLoader` now supports the new source size
 | 
						|
  header field in .pyc files.
 | 
						|
 | 
						|
- Issue #5346: Preserve permissions of mbox, MMDF and Babyl mailbox files on
 | 
						|
  flush().
 | 
						|
 | 
						|
- Issue #10571: Fix the "--sign" option of distutils' upload command.  Patch by
 | 
						|
  Jakub Wilk.
 | 
						|
 | 
						|
- Issue #9559: If messages were only added, a new file is no longer created and
 | 
						|
  renamed over the old file when flush() is called on an mbox, MMDF or Babyl
 | 
						|
  mailbox.
 | 
						|
 | 
						|
- Issue #10924: Fixed `crypt.mksalt()` to use a RNG that is suitable for
 | 
						|
  cryptographic purpose.
 | 
						|
 | 
						|
- Issue #15184: Ensure consistent results of OS X configuration tailoring for
 | 
						|
  universal builds by factoring out common OS X-specific customizations from
 | 
						|
  sysconfig, distutils.sysconfig, distutils.util, and distutils.unixccompiler
 | 
						|
  into a new module _osx_support.
 | 
						|
 | 
						|
C API
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #15610: `PyImport_ImportModuleEx()` now uses a 'level' of 0 instead of -1.
 | 
						|
 | 
						|
- Issue #15169, issue #14599: Strip out the C implementation of
 | 
						|
  `imp.source_from_cache()` used by PyImport_ExecCodeModuleWithPathnames() and
 | 
						|
  used the Python code instead. Leads to PyImport_ExecCodeModuleObject() to not
 | 
						|
  try to infer the source path from the bytecode path as
 | 
						|
  PyImport_ExecCodeModuleWithPathnames() does.
 | 
						|
 | 
						|
Extension Modules
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #6493: An issue in ctypes on Windows that caused structure bitfields of
 | 
						|
  type `ctypes.c_uint32` and width 32 to incorrectly be set has been fixed.
 | 
						|
 | 
						|
- Issue #15194: Update libffi to the 3.0.11 release.
 | 
						|
 | 
						|
IDLE
 | 
						|
----
 | 
						|
 | 
						|
- Issue #13052: Fix IDLE crashing when replace string in Search/Replace dialog
 | 
						|
  ended with ``\``.  Patch by Roger Serwy.
 | 
						|
 | 
						|
Tools/Demos
 | 
						|
-----------
 | 
						|
 | 
						|
- Issue #15458: python-config gets a new option --configdir to print the $LIBPL
 | 
						|
  value.
 | 
						|
 | 
						|
- Move importlib.test.benchmark to Tools/importbench.
 | 
						|
 | 
						|
- Issue #12605: The gdb hooks for debugging CPython (within Tools/gdb) have been
 | 
						|
  enhanced to show information on more C frames relevant to CPython within the
 | 
						|
  "py-bt" and "py-bt-full" commands:
 | 
						|
 | 
						|
  * C frames that are waiting on the GIL
 | 
						|
  * C frames that are garbage-collecting
 | 
						|
  * C frames that are due to the invocation of a PyCFunction
 | 
						|
 | 
						|
Documentation
 | 
						|
-------------
 | 
						|
 | 
						|
- Issue #15041: Update "see also" list in tkinter documentation.
 | 
						|
 | 
						|
- Issue #15444: Use proper spelling for non-ASCII contributor names.  Patch by
 | 
						|
  Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #15295: Reorganize and rewrite the documentation on the import system.
 | 
						|
 | 
						|
- Issue #15230: Clearly document some of the limitations of the runpy module and
 | 
						|
  nudge readers towards importlib when appropriate.
 | 
						|
 | 
						|
- Issue #15053: Copy Python 3.3 import lock change notice to all relevant
 | 
						|
  functions in imp instead of just at the top of the relevant section.
 | 
						|
 | 
						|
- Issue #15288: Link to the term "loader" in notes in pkgutil about how things
 | 
						|
  won't work as expected in Python 3.3 and mark the requisite functions as
 | 
						|
  "changed" since they will no longer work with modules directly imported by
 | 
						|
  import itself.
 | 
						|
 | 
						|
- Issue #13557: Clarify effect of giving two different namespaces to `exec()` or
 | 
						|
  `execfile()`.
 | 
						|
 | 
						|
- Issue #15250: Document that `filecmp.dircmp()` compares files shallowly. Patch
 | 
						|
  contributed by Chris Jerdonek.
 | 
						|
 | 
						|
- Issue #15442: Expose the default list of directories ignored by
 | 
						|
  `filecmp.dircmp()` as a module attribute, and expand the list to more modern
 | 
						|
  values.
 | 
						|
 | 
						|
Tests
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #15467: Move helpers for `__sizeof__()` tests into test_support.  Patch
 | 
						|
  by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #15320: Make iterating the list of tests thread-safe when running tests
 | 
						|
  in multiprocess mode. Patch by Chris Jerdonek.
 | 
						|
 | 
						|
- Issue #15168: Move `importlib.test` to `test.test_importlib`.
 | 
						|
 | 
						|
- Issue #15091: Reactivate a test on UNIX which was failing thanks to a
 | 
						|
  forgotten `importlib.invalidate_caches()` call.
 | 
						|
 | 
						|
- Issue #15230: Adopted a more systematic approach in the runpy tests.
 | 
						|
 | 
						|
- Issue #15300: Ensure the temporary test working directories are in the same
 | 
						|
  parent folder when running tests in multiprocess mode from a Python build.
 | 
						|
  Patch by Chris Jerdonek.
 | 
						|
 | 
						|
- Issue #15284: Skip {send,recv}msg tests in test_socket when IPv6 is not
 | 
						|
  enabled. Patch by Brian Brazil.
 | 
						|
 | 
						|
- Issue #15277: Fix a resource leak in support.py when IPv6 is disabled.  Patch
 | 
						|
  by Brian Brazil.
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #11715: Fix multiarch detection without having Debian development tools
 | 
						|
  (dpkg-dev) installed.
 | 
						|
 | 
						|
- Issue #15037: Build OS X installers with local copy of ncurses 5.9 libraries
 | 
						|
  to avoid curses.unget_wch bug present in older versions of ncurses such as
 | 
						|
  those shipped with OS X.
 | 
						|
 | 
						|
- Issue #15560: Fix building _sqlite3 extension on OS X with an SDK.  Also, for
 | 
						|
  OS X installers, ensure consistent sqlite3 behavior and feature availability
 | 
						|
  by building a local copy of libsqlite3 rather than depending on the wide range
 | 
						|
  of versions supplied with various OS X releases.
 | 
						|
 | 
						|
- Issue #8847: Disable COMDAT folding in Windows PGO builds.
 | 
						|
 | 
						|
- Issue #14018: Fix OS X Tcl/Tk framework checking when using OS X SDKs.
 | 
						|
 | 
						|
- Issue #16256: OS X installer now sets correct permissions for doc directory.
 | 
						|
 | 
						|
- Issue #15431: Add _freeze_importlib project to regenerate importlib.h on
 | 
						|
  Windows. Patch by Kristján Valur Jónsson.
 | 
						|
 | 
						|
- Issue #14197: For OS X framework builds, ensure links to the shared library
 | 
						|
  are created with the proper ABI suffix.
 | 
						|
 | 
						|
- Issue #14330: For cross builds, don't use host python, use host search paths
 | 
						|
  for host compiler.
 | 
						|
 | 
						|
- Issue #15235: Allow Berkley DB versions up to 5.3 to build the dbm module.
 | 
						|
 | 
						|
- Issue #15268: Search curses.h in /usr/include/ncursesw.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.3.0 Beta 1?
 | 
						|
==================================
 | 
						|
 | 
						|
*Release date: 27-Jun-2012*
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Fix a (most likely) very rare memory leak when calling main() and not being
 | 
						|
  able to decode a command-line argument.
 | 
						|
 | 
						|
- Issue #14815: Use Py_ssize_t instead of long for the object hash, to
 | 
						|
  preserve all 64 bits of hash on Win64.
 | 
						|
 | 
						|
- Issue #12268: File readline, readlines and read() or readall() methods
 | 
						|
  no longer lose data when an underlying read system call is interrupted.
 | 
						|
  IOError is no longer raised due to a read system call returning EINTR
 | 
						|
  from within these methods.
 | 
						|
 | 
						|
- Issue #11626: Add _SizeT functions to stable ABI.
 | 
						|
 | 
						|
- Issue #15142: Fix reference leak when deallocating instances of types
 | 
						|
  created using PyType_FromSpec().
 | 
						|
 | 
						|
- Issue #10053: Don't close FDs when FileIO.__init__ fails. Loosely based on
 | 
						|
  the work by Hirokazu Yamamoto.
 | 
						|
 | 
						|
- Issue #15096: Removed support for ur'' as the raw notation isn't
 | 
						|
  compatible with Python 2.x's raw unicode strings.
 | 
						|
 | 
						|
- Issue #13783: Generator objects now use the identifier APIs internally
 | 
						|
 | 
						|
- Issue #14874: Restore charmap decoding speed to pre-PEP 393 levels.
 | 
						|
  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #15026: utf-16 encoding is now significantly faster (up to 10x).
 | 
						|
  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #11022: open() and io.TextIOWrapper are now calling
 | 
						|
  locale.getpreferredencoding(False) instead of locale.getpreferredencoding()
 | 
						|
  in text mode if the encoding is not specified. Don't change temporary the
 | 
						|
  locale encoding using locale.setlocale(), use the current locale encoding
 | 
						|
  instead of the user preferred encoding.
 | 
						|
 | 
						|
- Issue #14673: Add Eric Snow's sys.implementation implementation.
 | 
						|
 | 
						|
- Issue #15038: Optimize python Locks on Windows.
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #12288: Consider '0' and '0.0' as valid initialvalue
 | 
						|
  for tkinter SimpleDialog.
 | 
						|
 | 
						|
- Issue #15512: Add a __sizeof__ implementation for parser.
 | 
						|
  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #15469: Add a __sizeof__ implementation for deque objects.
 | 
						|
  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #15489: Add a __sizeof__ implementation for BytesIO objects.
 | 
						|
  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #15487: Add a __sizeof__ implementation for buffered I/O objects.
 | 
						|
  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #15514: Correct __sizeof__ support for cpu_set.
 | 
						|
  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #15177: Added dir_fd parameter to os.fwalk().
 | 
						|
 | 
						|
- Issue #15061: Re-implemented hmac.compare_digest() in C to prevent further
 | 
						|
  timing analysis and to support all buffer protocol aware objects as well as
 | 
						|
  ASCII only str instances safely.
 | 
						|
 | 
						|
- Issue #15164: Change return value of platform.uname() from a
 | 
						|
  plain tuple to a collections.namedtuple.
 | 
						|
 | 
						|
- Support Mageia Linux in the platform module.
 | 
						|
 | 
						|
- Issue #11678: Support Arch linux in the platform module.
 | 
						|
 | 
						|
- Issue #15118: Change return value of os.uname() and os.times() from
 | 
						|
  plain tuples to immutable iterable objects with named attributes
 | 
						|
  (structseq objects).
 | 
						|
 | 
						|
- Speed up _decimal by another 10-15% by caching the thread local context
 | 
						|
  that was last accessed. In the pi benchmark (64-bit platform, prec=9),
 | 
						|
  _decimal is now only 1.5x slower than float.
 | 
						|
 | 
						|
- Remove the packaging module, which is not ready for prime time.
 | 
						|
 | 
						|
- Issue #15154: Add "dir_fd" parameter to os.rmdir, remove "rmdir"
 | 
						|
  parameter from os.remove / os.unlink.
 | 
						|
 | 
						|
- Issue #4489: Add a shutil.rmtree that isn't susceptible to symlink attacks.
 | 
						|
  It is used automatically on platforms supporting the necessary os.openat()
 | 
						|
  and os.unlinkat() functions. Main code by Martin von Löwis.
 | 
						|
 | 
						|
- Issue #15156: HTMLParser now uses the new "html.entities.html5" dictionary.
 | 
						|
 | 
						|
- Issue #11113: add a new "html5" dictionary containing the named character
 | 
						|
  references defined by the HTML5 standard and the equivalent Unicode
 | 
						|
  character(s) to the html.entities module.
 | 
						|
 | 
						|
- Issue #15114: the strict mode of HTMLParser and the HTMLParseError exception
 | 
						|
  are deprecated now that the parser is able to parse invalid markup.
 | 
						|
 | 
						|
- Issue #3665: \u and \U escapes are now supported in unicode regular
 | 
						|
  expressions.  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #15153: Added inspect.getgeneratorlocals to simplify white box
 | 
						|
  testing of generator state updates
 | 
						|
 | 
						|
- Issue #13062: Added inspect.getclosurevars to simplify testing stateful
 | 
						|
  closures
 | 
						|
 | 
						|
- Issue #11024: Fixes and additional tests for Time2Internaldate.
 | 
						|
 | 
						|
- Issue #14626: Large refactoring of functions / parameters in the os module.
 | 
						|
  Many functions now support "dir_fd" and "follow_symlinks" parameters;
 | 
						|
  some also support accepting an open file descriptor in place of a path
 | 
						|
  string.  Added os.support_* collections as LBYL helpers.  Removed many
 | 
						|
  functions only previously seen in 3.3 alpha releases (often starting with
 | 
						|
  "f" or "l", or ending with "at").  Originally suggested by Serhiy Storchaka;
 | 
						|
  implemented by Larry Hastings.
 | 
						|
 | 
						|
- Issue #15008: Implement PEP 362 "Signature Objects".
 | 
						|
  Patch by Yury Selivanov.
 | 
						|
 | 
						|
- Issue: #15138: base64.urlsafe_{en,de}code() are now 3-4x faster.
 | 
						|
 | 
						|
- Issue #444582: Add shutil.which, for finding programs on the system path.
 | 
						|
  Original patch by Erik Demaine, with later iterations by Jan Killian
 | 
						|
  and Brian Curtin.
 | 
						|
 | 
						|
- Issue #14837: SSL errors now have ``library`` and ``reason`` attributes
 | 
						|
  describing precisely what happened and in which OpenSSL submodule.  The
 | 
						|
  str() of a SSLError is also enhanced accordingly.
 | 
						|
 | 
						|
- Issue #9527: datetime.astimezone() method will now supply a class
 | 
						|
  timezone instance corresponding to the system local timezone when
 | 
						|
  called with no arguments.
 | 
						|
 | 
						|
- Issue #14653: email.utils.mktime_tz() no longer relies on system
 | 
						|
  mktime() when timezone offest is supplied.
 | 
						|
 | 
						|
- Issue #14684: zlib.compressobj() and zlib.decompressobj() now support the use
 | 
						|
  of predefined compression dictionaries. Original patch by Sam Rushing.
 | 
						|
 | 
						|
- Fix GzipFile's handling of filenames given as bytes objects.
 | 
						|
 | 
						|
- Issue #14772: Return destination values from some shutil functions.
 | 
						|
 | 
						|
- Issue #15064: Implement context manager protocol for multiprocessing types
 | 
						|
 | 
						|
- Issue #15101: Make pool finalizer avoid joining current thread.
 | 
						|
 | 
						|
- Issue #14657: The frozen instance of importlib used for bootstrap is now
 | 
						|
  also the module imported as importlib._bootstrap.
 | 
						|
 | 
						|
- Issue #14055: Add __sizeof__ support to _elementtree.
 | 
						|
 | 
						|
- Issue #15054: A bug in tokenize.tokenize that caused string literals
 | 
						|
  with 'b' prefixes to be incorrectly tokenized has been fixed.
 | 
						|
  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #15006: Allow equality comparison between naive and aware
 | 
						|
  time or datetime objects.
 | 
						|
 | 
						|
- Issue #15036: Mailbox no longer throws an error if a flush is done
 | 
						|
  between operations when removing or changing multiple items in mbox,
 | 
						|
  MMDF, or Babyl mailboxes.
 | 
						|
 | 
						|
- Issue #14059: Implement multiprocessing.Barrier.
 | 
						|
 | 
						|
- Issue #15061: The inappropriately named hmac.secure_compare has been
 | 
						|
  renamed to hmac.compare_digest, restricted to operating on bytes inputs
 | 
						|
  only and had its documentation updated to more accurately reflect both its
 | 
						|
  intent and its limitations
 | 
						|
 | 
						|
- Issue #13841: Make child processes exit using sys.exit() on Windows.
 | 
						|
 | 
						|
- Issue #14936: curses_panel was converted to PEP 3121 and PEP 384 API.
 | 
						|
  Patch by Robin Schreiber.
 | 
						|
 | 
						|
- Issue #1667546: On platforms supporting tm_zone and tm_gmtoff fields
 | 
						|
  in struct tm, time.struct_time objects returned by time.gmtime(),
 | 
						|
  time.localtime() and time.strptime() functions now have tm_zone and
 | 
						|
  tm_gmtoff attributes.  Original patch by Paul Boddie.
 | 
						|
 | 
						|
- Rename adjusted attribute to adjustable in time.get_clock_info() result.
 | 
						|
 | 
						|
- Issue #3518: Remove references to non-existent BaseManager.from_address()
 | 
						|
  method.
 | 
						|
 | 
						|
- Issue #13857: Added textwrap.indent() function (initial patch by Ezra
 | 
						|
  Berch)
 | 
						|
 | 
						|
- Issue #2736: Added datetime.timestamp() method.
 | 
						|
 | 
						|
- Issue #13854: Make multiprocessing properly handle non-integer
 | 
						|
  non-string argument to SystemExit.
 | 
						|
 | 
						|
- Issue #12157: Make pool.map() empty iterables correctly.  Initial
 | 
						|
  patch by mouad.
 | 
						|
 | 
						|
- Issue #11823: disassembly now shows argument counts on calls with keyword args.
 | 
						|
 | 
						|
- Issue #14711: os.stat_float_times() has been deprecated.
 | 
						|
 | 
						|
- LZMAFile now accepts the modes "rb"/"wb"/"ab" as synonyms of "r"/"w"/"a".
 | 
						|
 | 
						|
- The bz2 and lzma modules now each contain an open() function, allowing
 | 
						|
  compressed files to readily be opened in text mode as well as binary mode.
 | 
						|
 | 
						|
- BZ2File.__init__() and LZMAFile.__init__() now accept a file object as their
 | 
						|
  first argument, rather than requiring a separate "fileobj" argument.
 | 
						|
 | 
						|
- gzip.open() now accepts file objects as well as filenames.
 | 
						|
 | 
						|
- Issue #14992: os.makedirs(path, exist_ok=True) would raise an OSError
 | 
						|
  when the path existed and had the S_ISGID mode bit set when it was
 | 
						|
  not explicitly asked for.  This is no longer an exception as mkdir
 | 
						|
  cannot control if the OS sets that bit for it or not.
 | 
						|
 | 
						|
- Issue #14989: Make the CGI enable option to http.server available via command
 | 
						|
  line.
 | 
						|
 | 
						|
- Issue #14987: Add a missing import statement to inspect.
 | 
						|
 | 
						|
- Issue #1079: email.header.decode_header now correctly parses all the examples
 | 
						|
  in RFC2047.  There is a necessary visible behavior change: the leading and/or
 | 
						|
  trailing whitespace on ASCII parts is now preserved.
 | 
						|
 | 
						|
- Issue #14969: Better handling of exception chaining in contextlib.ExitStack
 | 
						|
 | 
						|
- Issue #14963: Convert contextlib.ExitStack.__exit__ to use an iterative
 | 
						|
  algorithm (Patch by Alon Horev)
 | 
						|
 | 
						|
- Issue #14785: Add sys._debugmallocstats() to help debug low-level memory
 | 
						|
  allocation issues
 | 
						|
 | 
						|
- Issue #14443: Ensure that .py files are byte-compiled with the correct Python
 | 
						|
  executable within bdist_rpm even on older versions of RPM
 | 
						|
 | 
						|
C-API
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #15146: Add PyType_FromSpecWithBases. Patch by Robin Schreiber.
 | 
						|
 | 
						|
- Issue #15042: Add PyState_AddModule and PyState_RemoveModule. Add version
 | 
						|
  guard for Py_LIMITED_API additions. Patch by Robin Schreiber.
 | 
						|
 | 
						|
- Issue #13783: Inadvertent additions to the public C API in the PEP 380
 | 
						|
  implementation have either been removed or marked as private interfaces.
 | 
						|
 | 
						|
Extension Modules
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #15000: Support the "unique" x32 architecture in _posixsubprocess.c.
 | 
						|
 | 
						|
IDLE
 | 
						|
----
 | 
						|
 | 
						|
- Issue #9803: Don't close IDLE on saving if breakpoint is open.
 | 
						|
  Patch by Roger Serwy.
 | 
						|
 | 
						|
- Issue #14962: Update text coloring in IDLE shell window after changing
 | 
						|
  options.  Patch by Roger Serwy.
 | 
						|
 | 
						|
Documentation
 | 
						|
-------------
 | 
						|
 | 
						|
- Issue #15176: Clarified behavior, documentation, and implementation
 | 
						|
  of os.listdir().
 | 
						|
 | 
						|
- Issue #14982: Document that pkgutil's iteration functions require the
 | 
						|
  non-standard iter_modules() method to be defined by an importer (something
 | 
						|
  the importlib importers do not define).
 | 
						|
 | 
						|
- Issue #15081: Document PyState_FindModule.
 | 
						|
  Patch by Robin Schreiber.
 | 
						|
 | 
						|
- Issue #14814: Added first draft of ipaddress module API reference
 | 
						|
 | 
						|
Tests
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #15187: Bugfix: remove temporary directories test_shutil was leaving
 | 
						|
  behind.
 | 
						|
 | 
						|
- Issue #14769: test_capi now has SkipitemTest, which cleverly checks
 | 
						|
  for "parity" between PyArg_ParseTuple() and the Python/getargs.c static
 | 
						|
  function skipitem() for all possible "format units".
 | 
						|
 | 
						|
- test_nntplib now tolerates being run from behind NNTP gateways that add
 | 
						|
  "X-Antivirus" headers to articles
 | 
						|
 | 
						|
- Issue #15043: test_gdb is now skipped entirely if gdb security settings
 | 
						|
  block loading of the gdb hooks
 | 
						|
 | 
						|
- Issue #14963: Add test cases for exception handling behaviour
 | 
						|
  in contextlib.ExitStack (Initial patch by Alon Horev)
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #13590: Improve support for OS X Xcode 4:
 | 
						|
    * Try to avoid building Python or extension modules with problematic
 | 
						|
      llvm-gcc compiler.
 | 
						|
    * Since Xcode 4 removes ppc support, extension module builds now
 | 
						|
      check for ppc compiler support and automatically remove ppc and
 | 
						|
      ppc64 archs when not available.
 | 
						|
    * Since Xcode 4 no longer install SDKs in default locations,
 | 
						|
      extension module builds now revert to using installed headers
 | 
						|
      and libs if the SDK used to build the interpreter is not
 | 
						|
      available.
 | 
						|
    * Update ./configure to use better defaults for universal builds;
 | 
						|
      in particular, --enable-universalsdk=yes uses the Xcode default
 | 
						|
      SDK and --with-universal-archs now defaults to "intel" if ppc
 | 
						|
      not available.
 | 
						|
 | 
						|
- Issue #14225: Fix Unicode support for curses (#12567) on OS X
 | 
						|
 | 
						|
- Issue #14928: Fix importlib bootstrap issues by using a custom executable
 | 
						|
  (Modules/_freeze_importlib) to build Python/importlib.h.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.3.0 Alpha 4?
 | 
						|
===================================
 | 
						|
 | 
						|
*Release date: 31-May-2012*
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #14835: Make plistlib output empty arrays & dicts like OS X.
 | 
						|
  Patch by Sidney San Martín.
 | 
						|
 | 
						|
- Issue #14744: Use the new _PyUnicodeWriter internal API to speed up
 | 
						|
  str%args and str.format(args).
 | 
						|
 | 
						|
- Issue #14930: Make memoryview objects weakrefable.
 | 
						|
 | 
						|
- Issue #14775: Fix a potential quadratic dict build-up due to the garbage
 | 
						|
  collector repeatedly trying to untrack dicts.
 | 
						|
 | 
						|
- Issue #14857: fix regression in references to PEP 3135 implicit __class__
 | 
						|
  closure variable (Reopens issue #12370)
 | 
						|
 | 
						|
- Issue #14712 (PEP 405): Virtual environments. Implemented by Vinay Sajip.
 | 
						|
 | 
						|
- Issue #14660 (PEP 420): Namespace packages. Implemented by Eric Smith.
 | 
						|
 | 
						|
- Issue #14494: Fix __future__.py and its documentation to note that
 | 
						|
  absolute imports are the default behavior in 3.0 instead of 2.7.
 | 
						|
  Patch by Sven Marnach.
 | 
						|
 | 
						|
- Issue #9260: A finer-grained import lock.  Most of the import sequence
 | 
						|
  now uses per-module locks rather than the global import lock, eliminating
 | 
						|
  well-known issues with threads and imports.
 | 
						|
 | 
						|
- Issue #14624: UTF-16 decoding is now 3x to 4x faster on various inputs.
 | 
						|
  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- asdl_seq and asdl_int_seq are now Py_ssize_t sized.
 | 
						|
 | 
						|
- Issue #14133 (PEP 415): Implement suppression of __context__ display with an
 | 
						|
  attribute on BaseException. This replaces the original mechanism of PEP 409.
 | 
						|
 | 
						|
- Issue #14417: Mutating a dict during lookup now restarts the lookup instead
 | 
						|
  of raising a RuntimeError (undoes issue #14205).
 | 
						|
 | 
						|
- Issue #14738: Speed-up UTF-8 decoding on non-ASCII data.  Patch by Serhiy
 | 
						|
  Storchaka.
 | 
						|
 | 
						|
- Issue #14700: Fix two broken and undefined-behaviour-inducing overflow checks
 | 
						|
  in old-style string formatting.
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #14690: Use monotonic clock instead of system clock in the sched,
 | 
						|
  subprocess and trace modules.
 | 
						|
 | 
						|
- Issue #14443: Tell rpmbuild to use the correct version of Python in
 | 
						|
  bdist_rpm. Initial patch by Ross Lagerwall.
 | 
						|
 | 
						|
- Issue #12515: email now registers a defect if it gets to EOF while parsing
 | 
						|
  a MIME part without seeing the closing MIME boundary.
 | 
						|
 | 
						|
- Issue #1672568: email now always decodes base64 payloads, adding padding and
 | 
						|
  ignoring non-base64-alphabet characters if needed, and registering defects
 | 
						|
  for any such problems.
 | 
						|
 | 
						|
- Issue #14925: email now registers a defect when the parser decides that there
 | 
						|
  is a missing header/body separator line.  MalformedHeaderDefect, which the
 | 
						|
  existing code would never actually generate, is deprecated.
 | 
						|
 | 
						|
- Issue #10365: File open dialog now works instead of crashing even when
 | 
						|
  the parent window is closed before the dialog. Patch by Roger Serwy.
 | 
						|
 | 
						|
- Issue #8739: Updated smtpd to support RFC 5321, and added support for the
 | 
						|
  RFC 1870 SIZE extension.
 | 
						|
 | 
						|
- Issue #665194: Added a localtime function to email.utils to provide an
 | 
						|
  aware local datetime for use in setting Date headers.
 | 
						|
 | 
						|
- Issue #12586: Added new provisional policies that implement convenient
 | 
						|
  unicode support for email headers.  See What's New for details.
 | 
						|
 | 
						|
- Issue #14731: Refactored email Policy framework to support full backward
 | 
						|
  compatibility with Python 3.2 by default yet allow for the introduction of
 | 
						|
  new features through new policies.  Note that Policy.must_be_7bit is renamed
 | 
						|
  to cte_type.
 | 
						|
 | 
						|
- Issue #14876: Use user-selected font for highlight configuration.
 | 
						|
 | 
						|
- Issue #14920: Fix the help(urllib.parse) failure on locale C on terminals.
 | 
						|
  Have ascii characters in help.
 | 
						|
 | 
						|
- Issue #14548: Make multiprocessing finalizers check pid before
 | 
						|
  running to cope with possibility of gc running just after fork.
 | 
						|
 | 
						|
- Issue #14036: Add an additional check to validate that port in urlparse does
 | 
						|
  not go in illegal range and returns None.
 | 
						|
 | 
						|
- Issue #14862: Add missing names to os.__all__
 | 
						|
 | 
						|
- Issue #14875: Use float('inf') instead of float('1e66666') in the json module.
 | 
						|
 | 
						|
- Issue #13585: Added contextlib.ExitStack
 | 
						|
 | 
						|
- PEP 3144, Issue #14814: Added the ipaddress module
 | 
						|
 | 
						|
- Issue #14426: Correct the Date format in Expires attribute of Set-Cookie
 | 
						|
  Header in Cookie.py.
 | 
						|
 | 
						|
- Issue #14588: The types module now provide new_class() and prepare_class()
 | 
						|
  functions to support PEP 3115 compliant dynamic class creation. Patch by
 | 
						|
  Daniel Urban and Nick Coghlan.
 | 
						|
 | 
						|
- Issue #13152: Allow to specify a custom tabsize for expanding tabs in
 | 
						|
  textwrap. Patch by John Feuerstein.
 | 
						|
 | 
						|
- Issue #14721: Send the correct 'Content-length: 0' header when the body is an
 | 
						|
  empty string ''. Initial Patch contributed by Arve Knudsen.
 | 
						|
 | 
						|
- Issue #14072: Fix parsing of 'tel' URIs in urlparse by making the check for
 | 
						|
  ports stricter.
 | 
						|
 | 
						|
- Issue #9374: Generic parsing of query and fragment portions of url for any
 | 
						|
  scheme. Supported both by RFC3986 and RFC2396.
 | 
						|
 | 
						|
- Issue #14798: Fix the functions in pyclbr to raise an ImportError
 | 
						|
  when the first part of a dotted name is not a package. Patch by
 | 
						|
  Xavier de Gaye.
 | 
						|
 | 
						|
- Issue #12098: multiprocessing on Windows now starts child processes
 | 
						|
  using the same sys.flags as the current process.  Initial patch by
 | 
						|
  Sergey Mezentsev.
 | 
						|
 | 
						|
- Issue #13031: Small speed-up for tarfile when unzipping tarfiles.
 | 
						|
  Patch by Justin Peel.
 | 
						|
 | 
						|
- Issue #14780: urllib.request.urlopen() now has a ``cadefault`` argument
 | 
						|
  to use the default certificate store.  Initial patch by James Oakley.
 | 
						|
 | 
						|
- Issue #14829: Fix bisect and range() indexing with large indices
 | 
						|
  (>= 2 ** 32) under 64-bit Windows.
 | 
						|
 | 
						|
- Issue #14732: The _csv module now uses PEP 3121 module initialization.
 | 
						|
  Patch by Robin Schreiber.
 | 
						|
 | 
						|
- Issue #14809: Add HTTP status codes introduced by RFC 6585 to http.server
 | 
						|
  and http.client. Patch by EungJun Yi.
 | 
						|
 | 
						|
- Issue #14777: tkinter may return undecoded UTF-8 bytes as a string when
 | 
						|
  accessing the Tk clipboard.  Modify clipboad_get() to first request type
 | 
						|
  UTF8_STRING when no specific type is requested in an X11 windowing
 | 
						|
  environment, falling back to the current default type STRING if that fails.
 | 
						|
  Original patch by Thomas Kluyver.
 | 
						|
 | 
						|
- Issue #14773: Fix os.fwalk() failing on dangling symlinks.
 | 
						|
 | 
						|
- Issue #12541: Be lenient with quotes around Realm field of HTTP Basic
 | 
						|
  Authentation in urllib2.
 | 
						|
 | 
						|
- Issue #14807: move undocumented tarfile.filemode() to stat.filemode() and add
 | 
						|
  doc entry. Add tarfile.filemode alias with deprecation warning.
 | 
						|
 | 
						|
- Issue #13815: TarFile.extractfile() now returns io.BufferedReader objects.
 | 
						|
 | 
						|
- Issue #14532: Add a secure_compare() helper to the hmac module, to mitigate
 | 
						|
  timing attacks. Patch by Jon Oberheide.
 | 
						|
 | 
						|
- Add importlib.util.resolve_name().
 | 
						|
 | 
						|
- Issue #14366: Support lzma compression in zip files.
 | 
						|
  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #13959: Introduce importlib.find_loader() and document
 | 
						|
  imp.find_module/load_module as deprecated.
 | 
						|
 | 
						|
- Issue #14082: shutil.copy2() now copies extended attributes, if possible.
 | 
						|
  Patch by Hynek Schlawack.
 | 
						|
 | 
						|
- Issue #13959: Make importlib.abc.FileLoader.load_module()/get_filename() and
 | 
						|
  importlib.machinery.ExtensionFileLoader.load_module() have their single
 | 
						|
  argument be optional. Allows for the replacement (and thus deprecation) of
 | 
						|
  imp.load_source()/load_package()/load_compiled().
 | 
						|
 | 
						|
- Issue #13959: imp.get_suffixes() has been deprecated in favour of the new
 | 
						|
  attributes on importlib.machinery: SOURCE_SUFFIXES, DEBUG_BYTECODE_SUFFIXES,
 | 
						|
  OPTIMIZED_BYTECODE_SUFFIXES, BYTECODE_SUFFIXES, and EXTENSION_SUFFIXES. This
 | 
						|
  led to an indirect deprecation of inspect.getmoduleinfo().
 | 
						|
 | 
						|
- Issue #14662: Prevent shutil failures on OS X when destination does not
 | 
						|
  support chflag operations.  Patch by Hynek Schlawack.
 | 
						|
 | 
						|
- Issue #14157: Fix time.strptime failing without a year on February 29th.
 | 
						|
  Patch by Hynek Schlawack.
 | 
						|
 | 
						|
- Issue #14753: Make multiprocessing's handling of negative timeouts
 | 
						|
  the same as it was in Python 3.2.
 | 
						|
 | 
						|
- Issue #14583: Fix importlib bug when a package's __init__.py would first
 | 
						|
  import one of its modules then raise an error.
 | 
						|
 | 
						|
- Issue #14741: Fix missing support for Ellipsis ('...') in parser module.
 | 
						|
 | 
						|
- Issue #14697: Fix missing support for set displays and set comprehensions in
 | 
						|
  parser module.
 | 
						|
 | 
						|
- Issue #14701: Fix missing support for 'raise ... from' in parser module.
 | 
						|
 | 
						|
- Add support for timeouts to the acquire() methods of
 | 
						|
  multiprocessing's lock/semaphore/condition proxies.
 | 
						|
 | 
						|
- Issue #13989: Add support for text mode to gzip.open().
 | 
						|
 | 
						|
- Issue #14127: The os.stat() result object now provides three additional
 | 
						|
  fields: st_ctime_ns, st_mtime_ns, and st_atime_ns, providing those times as an
 | 
						|
  integer with nanosecond resolution.  The functions os.utime(), os.lutimes(),
 | 
						|
  and os.futimes() now accept a new parameter, ns, which accepts mtime and atime
 | 
						|
  as integers with nanosecond resolution.
 | 
						|
 | 
						|
- Issue #14127 and #10148: shutil.copystat now preserves exact mtime and atime
 | 
						|
  on filesystems providing nanosecond resolution.
 | 
						|
 | 
						|
IDLE
 | 
						|
----
 | 
						|
 | 
						|
- Issue #14958: Change IDLE systax highlighting to recognize all string and
 | 
						|
  byte literals supported in Python 3.3.
 | 
						|
 | 
						|
- Issue #10997: Prevent a duplicate entry in IDLE's "Recent Files" menu.
 | 
						|
 | 
						|
- Issue #14929: Stop IDLE 3.x from closing on Unicode decode errors when
 | 
						|
  grepping. Patch by Roger Serwy.
 | 
						|
 | 
						|
- Issue #12510: Attempting to get invalid tooltip no longer closes IDLE.
 | 
						|
  Other tooltipss have been corrected or improved and the number of tests
 | 
						|
  has been tripled. Original patch by Roger Serwy.
 | 
						|
 | 
						|
Tools/Demos
 | 
						|
-----------
 | 
						|
 | 
						|
- Issue #14695: Bring Tools/parser/unparse.py support up to date with
 | 
						|
  the Python 3.3 Grammar.
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #14472: Update .gitignore. Patch by Matej Cepl.
 | 
						|
 | 
						|
- Upgrade Windows library versions: bzip 1.0.6, OpenSSL 1.0.1c.
 | 
						|
 | 
						|
- Issue #14693: Under non-Windows platforms, hashlib's fallback modules are
 | 
						|
  always compiled, even if OpenSSL is present at build time.
 | 
						|
 | 
						|
- Issue #13210: Windows build now uses VS2010, ported from VS2008.
 | 
						|
 | 
						|
C-API
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #14705: The PyArg_Parse() family of functions now support the 'p' format
 | 
						|
  unit, which accepts a "boolean predicate" argument.  It converts any Python
 | 
						|
  value into an integer--0 if it is "false", and 1 otherwise.
 | 
						|
 | 
						|
Documentation
 | 
						|
-------------
 | 
						|
 | 
						|
- Issue #14863: Update the documentation of os.fdopen() to reflect the
 | 
						|
  fact that it's only a thin wrapper around open() anymore.
 | 
						|
 | 
						|
- Issue #14588: The language reference now accurately documents the Python 3
 | 
						|
  class definition process. Patch by Nick Coghlan.
 | 
						|
 | 
						|
- Issue #14943: Correct a default argument value for winreg.OpenKey
 | 
						|
  and correctly list the argument names in the function's explanation.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.3.0 Alpha 3?
 | 
						|
===================================
 | 
						|
 | 
						|
*Release date: 01-May-2012*
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #14699: Fix calling the classmethod descriptor directly.
 | 
						|
 | 
						|
- Issue #14433: Prevent msvcrt crash in interactive prompt when stdin is closed.
 | 
						|
 | 
						|
- Issue #14521: Make result of float('nan') and float('-nan') more consistent
 | 
						|
  across platforms.
 | 
						|
 | 
						|
- Issue #14646: __import__() sets __loader__ if the loader did not.
 | 
						|
 | 
						|
- Issue #14605: No longer have implicit entries in sys.meta_path. If
 | 
						|
  sys.meta_path is found to be empty, raise ImportWarning.
 | 
						|
 | 
						|
- Issue #14605: No longer have implicit entries in sys.path_hooks. If
 | 
						|
  sys.path_hooks is found to be empty, a warning will be raised. None is now
 | 
						|
  inserted into sys.path_importer_cache if no finder was discovered. This also
 | 
						|
  means imp.NullImporter is no longer implicitly used.
 | 
						|
 | 
						|
- Issue #13903: Implement PEP 412. Individual dictionary instances can now share
 | 
						|
  their keys with other dictionaries. Classes take advantage of this to share
 | 
						|
  their instance dictionary keys for improved memory and performance.
 | 
						|
 | 
						|
- Issue #11603 (again): Setting __repr__ to __str__ now raises a RuntimeError
 | 
						|
  when repr() or str() is called on such an object.
 | 
						|
 | 
						|
- Issue #14658: Fix binding a special method to a builtin implementation of a
 | 
						|
  special method with a different name.
 | 
						|
 | 
						|
- Issue #14630: Fix a memory access bug for instances of a subclass of int
 | 
						|
  with value 0.
 | 
						|
 | 
						|
- Issue #14339: Speed improvements to bin, oct and hex functions.  Patch by
 | 
						|
  Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #14385: It is now possible to use a custom type for the __builtins__
 | 
						|
  namespace, instead of a dict. It can be used for sandboxing for example.
 | 
						|
  Raise also a NameError instead of ImportError if __build_class__ name if not
 | 
						|
  found in __builtins__.
 | 
						|
 | 
						|
- Issue #12599: Be more strict in accepting None compared to a false-like
 | 
						|
  object for importlib.util.module_for_loader and
 | 
						|
  importlib.machinery.PathFinder.
 | 
						|
 | 
						|
- Issue #14612: Fix jumping around with blocks by setting f_lineno.
 | 
						|
 | 
						|
- Issue #14592: Attempting a relative import w/o __package__ or __name__ set in
 | 
						|
  globals raises a KeyError.
 | 
						|
 | 
						|
- Issue #14607: Fix keyword-only arguments which started with ``__``.
 | 
						|
 | 
						|
- Issue #10854: The ImportError raised when an extension module on Windows
 | 
						|
  fails to import now uses the new path and name attributes from
 | 
						|
  Issue #1559549.
 | 
						|
 | 
						|
- Issue #13889: Check and (if necessary) set FPU control word before calling
 | 
						|
  any of the dtoa.c string <-> float conversion functions, on MSVC builds of
 | 
						|
  Python.  This fixes issues when embedding Python in a Delphi app.
 | 
						|
 | 
						|
- __import__() now matches PEP 328 and documentation by defaulting 'index' to 0
 | 
						|
  instead of -1 and removing support for negative values.
 | 
						|
 | 
						|
- Issue #2377: Make importlib the implementation of __import__().
 | 
						|
 | 
						|
- Issue #1559549: ImportError now has 'name' and 'path' attributes that are set
 | 
						|
  using keyword arguments to its constructor. They are currently not set by
 | 
						|
  import as they are meant for use by importlib.
 | 
						|
 | 
						|
- Issue #14474: Save and restore exception state in thread.start_new_thread()
 | 
						|
  while writing error message if the thread leaves a unhandled exception.
 | 
						|
 | 
						|
- Issue #13019: Fix potential reference leaks in bytearray.extend().  Patch
 | 
						|
  by Suman Saha.
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #14768: os.path.expanduser('~/a') doesn't works correctly when HOME is '/'.
 | 
						|
 | 
						|
- Issue #14371: Support bzip2 in zipfile module.  Patch by Serhiy Storchaka.
 | 
						|
 | 
						|
- Issue #13183: Fix pdb skipping frames after hitting a breakpoint and running
 | 
						|
  step.  Patch by Xavier de Gaye.
 | 
						|
 | 
						|
- Issue #14696: Fix parser module to understand 'nonlocal' declarations.
 | 
						|
 | 
						|
- Issue #10941: Fix imaplib.Internaldate2tuple to produce correct result near
 | 
						|
  the DST transition.  Patch by Joe Peterson.
 | 
						|
 | 
						|
- Issue #9154: Fix parser module to understand function annotations.
 | 
						|
 | 
						|
- Issue #6085: In http.server.py SimpleHTTPServer.address_string returns the
 | 
						|
  client ip address instead client hostname. Patch by Charles-François Natali.
 | 
						|
 | 
						|
- Issue #14309: Deprecate time.clock(), use time.perf_counter() or
 | 
						|
  time.process_time() instead.
 | 
						|
 | 
						|
- Issue #14428: Implement the PEP 418. Add time.get_clock_info(),
 | 
						|
  time.perf_counter() and time.process_time() functions, and rename
 | 
						|
  time.steady() to time.monotonic().
 | 
						|
 | 
						|
- Issue #14646: importlib.util.module_for_loader() now sets __loader__ and
 | 
						|
  __package__ (when possible).
 | 
						|
 | 
						|
- Issue #14664: It is now possible to use @unittest.skip{If,Unless} on a
 | 
						|
  test class that doesn't inherit from TestCase (i.e. a mixin).
 | 
						|
 | 
						|
- Issue #4892: multiprocessing Connections can now be transferred over
 | 
						|
  multiprocessing Connections.  Patch by Richard Oudkerk (sbt).
 | 
						|
 | 
						|
- Issue #14160: TarFile.extractfile() failed to resolve symbolic links when
 | 
						|
  the links were not located in an archive subdirectory.
 | 
						|
 | 
						|
- Issue #14638: pydoc now treats non-string __name__ values as if they
 | 
						|
  were missing, instead of raising an error.
 | 
						|
 | 
						|
- Issue #13684: Fix httplib tunnel issue of infinite loops for certain sites
 | 
						|
  which send EOF without trailing \r\n.
 | 
						|
 | 
						|
- Issue #14605: Add importlib.abc.FileLoader, importlib.machinery.(FileFinder,
 | 
						|
  SourceFileLoader, SourcelessFileLoader, ExtensionFileLoader).
 | 
						|
 | 
						|
- Issue #13959: imp.cache_from_source()/source_from_cache() now follow
 | 
						|
  os.path.join()/split() semantics for path manipulation instead of its prior,
 | 
						|
  custom semantics of caring the right-most path separator forward in path
 | 
						|
  joining.
 | 
						|
 | 
						|
- Issue #2193: Allow ":" character in Cookie NAME values.
 | 
						|
 | 
						|
- Issue #14629: tokenizer.detect_encoding will specify the filename in the
 | 
						|
  SyntaxError exception if found at readline.__self__.name.
 | 
						|
 | 
						|
- Issue #14629: Raise SyntaxError in tokenizer.detect_encoding if the
 | 
						|
  first two lines have non-UTF-8 characters without an encoding declaration.
 | 
						|
 | 
						|
- Issue #14308: Fix an exception when a "dummy" thread is in the threading
 | 
						|
  module's active list after a fork().
 | 
						|
 | 
						|
- Issue #11750: The Windows API functions scattered in the _subprocess and
 | 
						|
  _multiprocessing.win32 modules now live in a single module "_winapi".
 | 
						|
  Patch by sbt.
 | 
						|
 | 
						|
- Issue #14087: multiprocessing: add Condition.wait_for(). Patch by sbt.
 | 
						|
 | 
						|
- Issue #14538: HTMLParser can now parse correctly start tags that contain
 | 
						|
  a bare '/'.
 | 
						|
 | 
						|
- Issue #14452: SysLogHandler no longer inserts a UTF-8 BOM into the message.
 | 
						|
 | 
						|
- Issue #14386: Expose the dict_proxy internal type as types.MappingProxyType.
 | 
						|
 | 
						|
- Issue #13959: Make imp.reload() always use a module's __loader__ to perform
 | 
						|
  the reload.
 | 
						|
 | 
						|
- Issue #13959: Add imp.py and rename the built-in module to _imp, allowing for
 | 
						|
  re-implementing parts of the module in pure Python.
 | 
						|
 | 
						|
- Issue #13496: Fix potential overflow in bisect.bisect algorithm when applied
 | 
						|
  to a collection of size > sys.maxsize / 2.
 | 
						|
 | 
						|
- Have importlib take advantage of ImportError's new 'name' and 'path'
 | 
						|
  attributes.
 | 
						|
 | 
						|
- Issue #14399: zipfile now recognizes that the archive has been modified even
 | 
						|
  if only the comment is changed.  In addition, the TypeError that results from
 | 
						|
  trying to set a non-binary value as a comment is now raised at the time
 | 
						|
  the comment is set rather than at the time the zipfile is written.
 | 
						|
 | 
						|
- trace.CoverageResults.is_ignored_filename() now ignores any name that starts
 | 
						|
  with "<" and ends with ">" instead of special-casing "<string>" and
 | 
						|
  "<doctest ".
 | 
						|
 | 
						|
- Issue #12537: The mailbox module no longer depends on knowledge of internal
 | 
						|
  implementation details of the email package Message object.
 | 
						|
 | 
						|
- Issue #7978: socketserver now restarts the select() call when EINTR is
 | 
						|
  returned.  This avoids crashing the server loop when a signal is received.
 | 
						|
  Patch by Jerzy Kozera.
 | 
						|
 | 
						|
- Issue #14522: Avoid duplicating socket handles in multiprocessing.connection.
 | 
						|
  Patch by sbt.
 | 
						|
 | 
						|
- Don't Py_DECREF NULL variable in io.IncrementalNewlineDecoder.
 | 
						|
 | 
						|
- Issue #3033: Add displayof parameter to tkinter font. Patch by Guilherme Polo.
 | 
						|
 | 
						|
- Issue #14482: Raise a ValueError, not a NameError, when trying to create
 | 
						|
  a multiprocessing Client or Listener with an AF_UNIX type address under
 | 
						|
  Windows.  Patch by Popa Claudiu.
 | 
						|
 | 
						|
- Issue #802310: Generate always unique tkinter font names if not directly passed.
 | 
						|
 | 
						|
- Issue #14151: Raise a ValueError, not a NameError, when trying to create
 | 
						|
  a multiprocessing Client or Listener with an AF_PIPE type address under
 | 
						|
  non-Windows platforms.  Patch by Popa Claudiu.
 | 
						|
 | 
						|
- Issue #14493: Use gvfs-open or xdg-open in webbrowser.
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- "make touch" will now touch generated files that are checked into Mercurial,
 | 
						|
  after a "hg update" which failed to bring the timestamps into the right order.
 | 
						|
 | 
						|
Tests
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #14026: In test_cmd_line_script, check that sys.argv is populated
 | 
						|
  correctly for the various invocation approaches (Patch by Jason Yeo)
 | 
						|
 | 
						|
- Issue #14032: Fix incorrect variable name in test_cmd_line_script debugging
 | 
						|
  message (Patch by Jason Yeo)
 | 
						|
 | 
						|
- Issue #14589: Update certificate chain for sha256.tbs-internet.com, fixing
 | 
						|
  a test failure in test_ssl.
 | 
						|
 | 
						|
- Issue #14355: Regrtest now supports the standard unittest test loading, and
 | 
						|
  will use it if a test file contains no `test_main` method.
 | 
						|
 | 
						|
IDLE
 | 
						|
----
 | 
						|
 | 
						|
- Issue #8515: Set __file__ when run file in IDLE.
 | 
						|
  Initial patch by Bruce Frederiksen.
 | 
						|
 | 
						|
- Issue #14496: Fix wrong name in idlelib/tabbedpages.py.
 | 
						|
  Patch by Popa Claudiu.
 | 
						|
 | 
						|
Tools / Demos
 | 
						|
-------------
 | 
						|
 | 
						|
- Issue #3561: The Windows installer now has an option, off by default, for
 | 
						|
  placing the Python installation into the system "Path" environment variable.
 | 
						|
 | 
						|
- Issue #13165: stringbench is now available in the Tools/stringbench folder.
 | 
						|
  It used to live in its own SVN project.
 | 
						|
 | 
						|
C-API
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #14098: New functions PyErr_GetExcInfo and PyErr_SetExcInfo.
 | 
						|
  Patch by Stefan Behnel.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.3.0 Alpha 2?
 | 
						|
===================================
 | 
						|
 | 
						|
*Release date: 01-Apr-2012*
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #1683368: object.__new__ and object.__init__ raise a TypeError if they
 | 
						|
  are passed arguments and their complementary method is not overridden.
 | 
						|
 | 
						|
- Issue #14378: Fix compiling ast.ImportFrom nodes with a "__future__" string as
 | 
						|
  the module name that was not interned.
 | 
						|
 | 
						|
- Issue #14331: Use significantly less stack space when importing modules by
 | 
						|
  allocating path buffers on the heap instead of the stack.
 | 
						|
 | 
						|
- Issue #14334: Prevent in a segfault in type.__getattribute__ when it was not
 | 
						|
  passed strings.
 | 
						|
 | 
						|
- Issue #1469629: Allow cycles through an object's __dict__ slot to be
 | 
						|
  collected. (For example if ``x.__dict__ is x``).
 | 
						|
 | 
						|
- Issue #14205: dict lookup raises a RuntimeError if the dict is modified
 | 
						|
  during a lookup.
 | 
						|
 | 
						|
- Issue #14220: When a generator is delegating to another iterator with the
 | 
						|
  yield from syntax, it needs to have its ``gi_running`` flag set to True.
 | 
						|
 | 
						|
- Issue #14435: Remove dedicated block allocator from floatobject.c and rely
 | 
						|
  on the PyObject_Malloc() api like all other objects.
 | 
						|
 | 
						|
- Issue #14471: Fix a possible buffer overrun in the winreg module.
 | 
						|
 | 
						|
- Issue #14288: Allow the serialization of builtin iterators
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #14300: Under Windows, sockets created using socket.dup() now allow
 | 
						|
  overlapped I/O.  Patch by sbt.
 | 
						|
 | 
						|
- Issue #13872: socket.detach() now marks the socket closed (as mirrored
 | 
						|
  in the socket repr()).  Patch by Matt Joiner.
 | 
						|
 | 
						|
- Issue #14406: Fix a race condition when using ``concurrent.futures.wait(
 | 
						|
  return_when=ALL_COMPLETED)``.  Patch by Matt Joiner.
 | 
						|
 | 
						|
- Issue #5136: deprecate old, unused functions from tkinter.
 | 
						|
 | 
						|
- Issue #14416: syslog now defines the LOG_ODELAY and LOG_AUTHPRIV constants
 | 
						|
  if they are defined in <syslog.h>.
 | 
						|
 | 
						|
- Issue #14295: Add unittest.mock
 | 
						|
 | 
						|
- Issue #7652: Add --with-system-libmpdec option to configure for linking
 | 
						|
  the _decimal module against an installed libmpdec.
 | 
						|
 | 
						|
- Issue #14380: MIMEText now defaults to utf-8 when passed non-ASCII unicode
 | 
						|
  with no charset specified.
 | 
						|
 | 
						|
- Issue #10340: asyncore - properly handle EINVAL in dispatcher constructor on
 | 
						|
  OSX; avoid to call handle_connect in case of a disconnected socket which
 | 
						|
  was not meant to connect.
 | 
						|
 | 
						|
- Issue #14204: The ssl module now has support for the Next Protocol
 | 
						|
  Negotiation extension, if available in the underlying OpenSSL library.
 | 
						|
  Patch by Colin Marc.
 | 
						|
 | 
						|
- Issue #3035: Unused functions from tkinter are marked as pending deprecated.
 | 
						|
 | 
						|
- Issue #12757: Fix the skipping of doctests when python is run with -OO so
 | 
						|
  that it works in unittest's verbose mode as well as non-verbose mode.
 | 
						|
 | 
						|
- Issue #7652: Integrate the decimal floating point libmpdec library to speed
 | 
						|
  up the decimal module. Performance gains of the new C implementation are
 | 
						|
  between 10x and 100x, depending on the application.
 | 
						|
 | 
						|
- Issue #14269: SMTPD now conforms to the RFC and requires a HELO command
 | 
						|
  before MAIL, RCPT, or DATA.
 | 
						|
 | 
						|
- Issue #13694: asynchronous connect in asyncore.dispatcher does not set addr
 | 
						|
  attribute.
 | 
						|
 | 
						|
- Issue #14344: fixed the repr of email.policy objects.
 | 
						|
 | 
						|
- Issue #11686: Added missing entries to email package __all__ lists
 | 
						|
  (mostly the new Bytes classes).
 | 
						|
 | 
						|
- Issue #14335: multiprocessing's custom Pickler subclass now inherits from
 | 
						|
  the C-accelerated implementation.  Patch by sbt.
 | 
						|
 | 
						|
- Issue #10484: Fix the CGIHTTPServer's PATH_INFO handling problem.
 | 
						|
 | 
						|
- Issue #11199: Fix the with urllib which hangs on particular ftp urls.
 | 
						|
 | 
						|
- Improve the memory utilization and speed of functools.lru_cache.
 | 
						|
 | 
						|
- Issue #14222: Use the new time.steady() function instead of time.time() for
 | 
						|
  timeout in queue and threading modules to not be affected of system time
 | 
						|
  update.
 | 
						|
 | 
						|
- Issue #13248: Remove lib2to3.pytree.Base.get_prefix/set_prefix.
 | 
						|
 | 
						|
- Issue #14234: CVE-2012-0876: Randomize hashes of xml attributes in the hash
 | 
						|
  table internal to the pyexpat module's copy of the expat library to avoid a
 | 
						|
  denial of service due to hash collisions.  Patch by David Malcolm with some
 | 
						|
  modifications by the expat project.
 | 
						|
 | 
						|
- Issue #12818: format address no longer needlessly \ escapes ()s in names when
 | 
						|
  the name ends up being quoted.
 | 
						|
 | 
						|
- Issue #14062: BytesGenerator now correctly folds Header objects,
 | 
						|
  including using linesep when folding.
 | 
						|
 | 
						|
- Issue #13839: When invoked on the command-line, the pstats module now
 | 
						|
  accepts several filenames of profile stat files and merges them all.
 | 
						|
  Patch by Matt Joiner.
 | 
						|
 | 
						|
- Issue #14291: Email now defaults to utf-8 for non-ASCII unicode headers
 | 
						|
  instead of raising an error.  This fixes a regression relative to 2.7.
 | 
						|
 | 
						|
- Issue #989712: Support using Tk without a mainloop.
 | 
						|
 | 
						|
- Issue #3835: Refuse to use unthreaded Tcl in threaded Python.
 | 
						|
 | 
						|
- Issue #2843: Add new Tk API to Tkinter.
 | 
						|
 | 
						|
- Issue #14184: Increase the default stack size for secondary threads on
 | 
						|
  Mac OS X to avoid interpreter crashes when using threads on 10.7.
 | 
						|
 | 
						|
- Issue #14180: datetime.date.fromtimestamp(),
 | 
						|
  datetime.datetime.fromtimestamp() and datetime.datetime.utcfromtimestamp()
 | 
						|
  now raise an OSError instead of ValueError if localtime() or gmtime() failed.
 | 
						|
 | 
						|
- Issue #14180: time.ctime(), gmtime(), time.localtime(),
 | 
						|
  datetime.date.fromtimestamp(), datetime.datetime.fromtimestamp() and
 | 
						|
  datetime.datetime.utcfromtimestamp() now raises an OverflowError, instead of
 | 
						|
  a ValueError, if the timestamp does not fit in time_t.
 | 
						|
 | 
						|
- Issue #14180: datetime.datetime.fromtimestamp() and
 | 
						|
  datetime.datetime.utcfromtimestamp() now round microseconds towards zero
 | 
						|
  instead of rounding to nearest with ties going away from zero.
 | 
						|
 | 
						|
- Issue #10543: Fix unittest test discovery with Jython bytecode files.
 | 
						|
 | 
						|
- Issue #1178863: Separate initialisation from setting when initializing
 | 
						|
  Tkinter.Variables; harmonize exceptions to ValueError; only delete variables
 | 
						|
  that have not been deleted; assert that variable names are strings.
 | 
						|
 | 
						|
- Issue #14104: Implement time.monotonic() on Mac OS X, patch written by
 | 
						|
  Nicholas Riley.
 | 
						|
 | 
						|
- Issue #13394: the aifc module now uses warnings.warn() to signal warnings.
 | 
						|
 | 
						|
- Issue #14252: Fix subprocess.Popen.terminate() to not raise an error under
 | 
						|
  Windows when the child process has already exited.
 | 
						|
 | 
						|
- Issue #14223: curses.addch() is no more limited to the range 0-255 when the
 | 
						|
  Python curses is not linked to libncursesw. It was a regression introduced
 | 
						|
  in Python 3.3a1.
 | 
						|
 | 
						|
- Issue #14168: Check for presence of Element._attrs in minidom before
 | 
						|
  accessing it.
 | 
						|
 | 
						|
- Issue #12328: Fix multiprocessing's use of overlapped I/O on Windows.
 | 
						|
  Also, add a multiprocessing.connection.wait(rlist, timeout=None) function
 | 
						|
  for polling multiple objects at once.  Patch by sbt.
 | 
						|
 | 
						|
- Issue #14007: Accept incomplete TreeBuilder objects (missing start, end,
 | 
						|
  data or close method) for the Python implementation as well.
 | 
						|
  Drop the no-op TreeBuilder().xml() method from the C implementation.
 | 
						|
 | 
						|
- Issue #14210: pdb now has tab-completion not only for command names, but
 | 
						|
  also for their arguments, wherever possible.
 | 
						|
 | 
						|
- Issue #14310: Sockets can now be with other processes on Windows using
 | 
						|
  the api socket.socket.share() and socket.fromshare().
 | 
						|
 | 
						|
- Issue #10576: The gc module now has a 'callbacks' member that will get
 | 
						|
  called when garbage collection takes place.
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #14557: Fix extensions build on HP-UX. Patch by Adi Roiban.
 | 
						|
 | 
						|
- Issue #14387: Do not include accu.h from Python.h.
 | 
						|
 | 
						|
- Issue #14359: Only use O_CLOEXEC in _posixmodule.c if it is defined.
 | 
						|
  Based on patch from Hervé Coatanhay.
 | 
						|
 | 
						|
- Issue #14321: Do not run pgen during the build if files are up to date.
 | 
						|
 | 
						|
Documentation
 | 
						|
-------------
 | 
						|
 | 
						|
- Issue #14034: added the argparse tutorial.
 | 
						|
 | 
						|
- Issue #14324: Fix configure tests for cross builds.
 | 
						|
 | 
						|
- Issue #14327: Call AC_CANONICAL_HOST in configure.ac and check in
 | 
						|
  config.{guess,sub}. Don't use uname calls for cross builds.
 | 
						|
 | 
						|
Extension Modules
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #9041: An issue in ctypes.c_longdouble, ctypes.c_double, and
 | 
						|
  ctypes.c_float that caused an incorrect exception to be returned in the
 | 
						|
  case of overflow has been fixed.
 | 
						|
 | 
						|
- Issue #14212: The re module didn't retain a reference to buffers it was
 | 
						|
  scanning, resulting in segfaults.
 | 
						|
 | 
						|
- Issue #14259: The finditer() method of re objects did not take any
 | 
						|
  keyword arguments, contrary to the documentation.
 | 
						|
 | 
						|
- Issue #10142: Support for SEEK_HOLE/SEEK_DATA (for example, under ZFS).
 | 
						|
 | 
						|
Tests
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #14442: Add missing errno import in test_smtplib.
 | 
						|
 | 
						|
- Issue #8315: (partial fix) python -m unittest test.test_email now works.
 | 
						|
 | 
						|
 | 
						|
What's New in Python 3.3.0 Alpha 1?
 | 
						|
===================================
 | 
						|
 | 
						|
*Release date: 05-Mar-2012*
 | 
						|
 | 
						|
Core and Builtins
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #14172: Fix reference leak when marshalling a buffer-like object
 | 
						|
  (other than a bytes object).
 | 
						|
 | 
						|
- Issue #13521: dict.setdefault() now does only one lookup for the given key,
 | 
						|
  making it "atomic" for many purposes.  Patch by Filip Gruszczyński.
 | 
						|
 | 
						|
- PEP 409, Issue #6210: "raise X from None" is now supported as a means of
 | 
						|
  suppressing the display of the chained exception context. The chained
 | 
						|
  context still remains available as the __context__ attribute.
 | 
						|
 | 
						|
- Issue #10181: New memoryview implementation fixes multiple ownership
 | 
						|
  and lifetime issues of dynamically allocated Py_buffer members (#9990)
 | 
						|
  as well as crashes (#8305, #7433). Many new features have been added
 | 
						|
  (See whatsnew/3.3), and the documentation has been updated extensively.
 | 
						|
  The ndarray test object from _testbuffer.c implements all aspects of
 | 
						|
  PEP-3118, so further development towards the complete implementation
 | 
						|
  of the PEP can proceed in a test-driven manner.
 | 
						|
 | 
						|
  Thanks to Nick Coghlan, Antoine Pitrou and Pauli Virtanen for review
 | 
						|
  and many ideas.
 | 
						|
 | 
						|
- Issue #12834: Fix incorrect results of memoryview.tobytes() for
 | 
						|
  non-contiguous arrays.
 | 
						|
 | 
						|
- Issue #5231: Introduce memoryview.cast() method that allows changing
 | 
						|
  format and shape without making a copy of the underlying memory.
 | 
						|
 | 
						|
- Issue #14084: Fix a file descriptor leak when importing a module with a
 | 
						|
  bad encoding.
 | 
						|
 | 
						|
- Upgrade Unicode data to Unicode 6.1.
 | 
						|
 | 
						|
- Issue #14040: Remove rarely used file name suffixes for C extensions
 | 
						|
  (under POSIX mainly).
 | 
						|
 | 
						|
- Issue #14051: Allow arbitrary attributes to be set of classmethod and
 | 
						|
  staticmethod.
 | 
						|
 | 
						|
- Issue #13703: oCERT-2011-003: Randomize hashes of str and bytes to protect
 | 
						|
  against denial of service attacks due to hash collisions within the dict and
 | 
						|
  set types.  Patch by David Malcolm, based on work by Victor Stinner.
 | 
						|
 | 
						|
- Issue #13020: Fix a reference leak when allocating a structsequence object
 | 
						|
  fails.  Patch by Suman Saha.
 | 
						|
 | 
						|
- Issue #13908: Ready types returned from PyType_FromSpec.
 | 
						|
 | 
						|
- Issue #11235: Fix OverflowError when trying to import a source file whose
 | 
						|
  modification time doesn't fit in a 32-bit timestamp.
 | 
						|
 | 
						|
- Issue #12705: A SyntaxError exception is now raised when attempting to
 | 
						|
  compile multiple statements as a single interactive statement.
 | 
						|
 | 
						|
- Fix the builtin module initialization code to store the init function for
 | 
						|
  future reinitialization.
 | 
						|
 | 
						|
- Issue #8052: The posix subprocess module would take a long time closing
 | 
						|
  all possible file descriptors in the child process rather than just open
 | 
						|
  file descriptors.  It now closes only the open fds if possible for the
 | 
						|
  default close_fds=True behavior.
 | 
						|
 | 
						|
- Issue #13629: Renumber the tokens in token.h so that they match the indexes
 | 
						|
  into _PyParser_TokenNames.
 | 
						|
 | 
						|
- Issue #13752: Add a casefold() method to str.
 | 
						|
 | 
						|
- Issue #13761: Add a "flush" keyword argument to the print() function,
 | 
						|
  used to ensure flushing the output stream.
 | 
						|
 | 
						|
- Issue #13645: pyc files now contain the size of the corresponding source
 | 
						|
  code, to avoid timestamp collisions (especially on filesystems with a low
 | 
						|
  timestamp resolution) when checking for freshness of the bytecode.
 | 
						|
 | 
						|
- PEP 380, Issue #11682: Add "yield from <x>" to support easy delegation to
 | 
						|
  subgenerators (initial patch by Greg Ewing, integration into 3.3 by
 | 
						|
  Renaud Blanch, Ryan Kelly, Zbigniew Jędrzejewski-Szmek and Nick Coghlan)
 | 
						|
 | 
						|
- Issue #13748: Raw bytes literals can now be written with the ``rb`` prefix
 | 
						|
  as well as ``br``.
 | 
						|
 | 
						|
- Issue #12736: Use full unicode case mappings for upper, lower, and title case.
 | 
						|
 | 
						|
- Issue #12760: Add a create mode to open(). Patch by David Townshend.
 | 
						|
 | 
						|
- Issue #13738: Simplify implementation of bytes.lower() and bytes.upper().
 | 
						|
 | 
						|
- Issue #13577: Built-in methods and functions now have a __qualname__.
 | 
						|
  Patch by sbt.
 | 
						|
 | 
						|
- Issue #6695: Full garbage collection runs now clear the freelist of set
 | 
						|
  objects.  Initial patch by Matthias Troffaes.
 | 
						|
 | 
						|
- Fix OSError.__init__ and OSError.__new__ so that each of them can be
 | 
						|
  overriden and take additional arguments (followup to issue #12555).
 | 
						|
 | 
						|
- Fix the fix for issue #12149: it was incorrect, although it had the side
 | 
						|
  effect of appearing to resolve the issue.  Thanks to Mark Shannon for
 | 
						|
  noticing.
 | 
						|
 | 
						|
- Issue #13505: Pickle bytes objects in a way that is compatible with
 | 
						|
  Python 2 when using protocols <= 2.
 | 
						|
 | 
						|
- Issue #11147: Fix an unused argument in _Py_ANNOTATE_MEMORY_ORDER.  (Fix
 | 
						|
  given by Campbell Barton).
 | 
						|
 | 
						|
- Issue #13503: Use a more efficient reduction format for bytearrays with
 | 
						|
  pickle protocol >= 3.  The old reduction format is kept with older protocols
 | 
						|
  in order to allow unpickling under Python 2.  Patch by Irmen de Jong.
 | 
						|
 | 
						|
- Issue #7111: Python can now be run without a stdin, stdout or stderr
 | 
						|
  stream.  It was already the case with Python 2.  However, the corresponding
 | 
						|
  sys module entries are now set to None (instead of an unusable file object).
 | 
						|
 | 
						|
- Issue #11849: Ensure that free()d memory arenas are really released
 | 
						|
  on POSIX systems supporting anonymous memory mappings.  Patch by
 | 
						|
  Charles-François Natali.
 | 
						|
 | 
						|
- PEP 3155 / issue #13448: Qualified name for classes and functions.
 | 
						|
 | 
						|
- Issue #13436: Fix a bogus error message when an AST object was passed
 | 
						|
  an invalid integer value.
 | 
						|
 | 
						|
- Issue #13411: memoryview objects are now hashable when the underlying
 | 
						|
  object is hashable.
 | 
						|
 | 
						|
- Issue #13338: Handle all enumerations in _Py_ANNOTATE_MEMORY_ORDER
 | 
						|
  to allow compiling extension modules with -Wswitch-enum on gcc.
 | 
						|
  Initial patch by Floris Bruynooghe.
 | 
						|
 | 
						|
- Issue #10227: Add an allocation cache for a single slice object.  Patch by
 | 
						|
  Stefan Behnel.
 | 
						|
 | 
						|
- Issue #13393: BufferedReader.read1() now asks the full requested size to
 | 
						|
  the raw stream instead of limiting itself to the buffer size.
 | 
						|
 | 
						|
- Issue #13392: Writing a pyc file should now be atomic under Windows as well.
 | 
						|
 | 
						|
- Issue #13333: The UTF-7 decoder now accepts lone surrogates (the encoder
 | 
						|
  already accepts them).
 | 
						|
 | 
						|
- Issue #13389: Full garbage collection passes now clear the freelists for
 | 
						|
  list and dict objects.  They already cleared other freelists in the
 | 
						|
  interpreter.
 | 
						|
 | 
						|
- Issue #13327: Remove the need for an explicit None as the second argument
 | 
						|
  to os.utime, os.lutimes, os.futimes, os.futimens, os.futimesat, in
 | 
						|
  order to update to the current time. Also added keyword argument
 | 
						|
  handling to os.utimensat in order to remove the need for explicit None.
 | 
						|
 | 
						|
- Issue #13350: Simplify some C code by replacing most usages of
 | 
						|
  PyUnicode_Format by PyUnicode_FromFormat.
 | 
						|
 | 
						|
- Issue #13342: input() used to ignore sys.stdin's and sys.stdout's unicode
 | 
						|
  error handler in interactive mode (when calling into PyOS_Readline()).
 | 
						|
 | 
						|
- Issue #9896: Add start, stop, and step attributes to range objects.
 | 
						|
 | 
						|
- Issue #13343: Fix a SystemError when a lambda expression uses a global
 | 
						|
  variable in the default value of a keyword-only argument: ``lambda *,
 | 
						|
  arg=GLOBAL_NAME: None``
 | 
						|
 | 
						|
- Issue #12797: Added custom opener parameter to builtin open() and
 | 
						|
  FileIO.open().
 | 
						|
 | 
						|
- Issue #10519: Avoid unnecessary recursive function calls in
 | 
						|
  setobject.c.
 | 
						|
 | 
						|
- Issue #10363: Deallocate global locks in Py_Finalize().
 | 
						|
 | 
						|
- Issue #13018: Fix reference leaks in error paths in dictobject.c.
 | 
						|
  Patch by Suman Saha.
 | 
						|
 | 
						|
- Issue #13201: Define '==' and '!=' to compare range objects based on
 | 
						|
  the sequence of values they define (instead of comparing based on
 | 
						|
  object identity).
 | 
						|
 | 
						|
- Issue #1294232: In a few cases involving metaclass inheritance, the
 | 
						|
  interpreter would sometimes invoke the wrong metaclass when building a new
 | 
						|
  class object. These cases now behave correctly. Patch by Daniel Urban.
 | 
						|
 | 
						|
- Issue #12753: Add support for Unicode name aliases and named sequences.
 | 
						|
  Both ``unicodedata.lookup()`` and '\N{...}' now resolve aliases,
 | 
						|
  and ``unicodedata.lookup()`` resolves named sequences too.
 | 
						|
 | 
						|
- Issue #12170: The count(), find(), rfind(), index() and rindex() methods
 | 
						|
  of bytes and bytearray objects now accept an integer between 0 and 255
 | 
						|
  as their first argument.  Patch by Petri Lehtinen.
 | 
						|
 | 
						|
- Issue #12604: VTRACE macro expanded to no-op in _sre.c to avoid compiler
 | 
						|
  warnings. Patch by Josh Triplett and Petri Lehtinen.
 | 
						|
 | 
						|
- Issue #12281: Rewrite the MBCS codec to handle correctly replace and ignore
 | 
						|
  error handlers on all Windows versions. The MBCS codec is now supporting all
 | 
						|
  error handlers, instead of only replace to encode and ignore to decode.
 | 
						|
 | 
						|
- Issue #13188: When called without an explicit traceback argument,
 | 
						|
  generator.throw() now gets the traceback from the passed exception's
 | 
						|
  ``__traceback__`` attribute.  Patch by Petri Lehtinen.
 | 
						|
 | 
						|
- Issue #13146: Writing a pyc file is now atomic under POSIX.
 | 
						|
 | 
						|
- Issue #7833: Extension modules built using distutils on Windows will no
 | 
						|
  longer include a "manifest" to prevent them failing at import time in some
 | 
						|
  embedded situations.
 | 
						|
 | 
						|
- PEP 3151 / issue #12555: reworking the OS and IO exception hierarchy.
 | 
						|
 | 
						|
- Add internal API for static strings (_Py_identifier et al.).
 | 
						|
 | 
						|
- Issue #13063: the Windows error ERROR_NO_DATA (numbered 232 and described
 | 
						|
  as "The pipe is being closed") is now mapped to POSIX errno EPIPE
 | 
						|
  (previously EINVAL).
 | 
						|
 | 
						|
- Issue #12911: Fix memory consumption when calculating the repr() of huge
 | 
						|
  tuples or lists.
 | 
						|
 | 
						|
- PEP 393: flexible string representation. Thanks to Torsten Becker for the
 | 
						|
  initial implementation, and Victor Stinner for various bug fixes.
 | 
						|
 | 
						|
- Issue #14081: The 'sep' and 'maxsplit' parameter to str.split, bytes.split,
 | 
						|
  and bytearray.split may now be passed as keyword arguments.
 | 
						|
 | 
						|
- Issue #13012: The 'keepends' parameter to str.splitlines may now be passed
 | 
						|
  as a keyword argument: "my_string.splitlines(keepends=True)".  The same
 | 
						|
  change also applies to bytes.splitlines and bytearray.splitlines.
 | 
						|
 | 
						|
- Issue #7732: Don't open a directory as a file anymore while importing a
 | 
						|
  module. Ignore the direcotry if its name matchs the module name (e.g.
 | 
						|
  "__init__.py") and raise a ImportError instead.
 | 
						|
 | 
						|
- Issue #13021: Missing decref on an error path.  Thanks to Suman Saha for
 | 
						|
  finding the bug and providing a patch.
 | 
						|
 | 
						|
- Issue #12973: Fix overflow checks that relied on undefined behaviour in
 | 
						|
  list_repeat (listobject.c) and islice_next (itertoolsmodule.c).  These bugs
 | 
						|
  caused test failures with recent versions of Clang.
 | 
						|
 | 
						|
- Issue #12904: os.utime, os.futimes, os.lutimes, and os.futimesat now write
 | 
						|
  atime and mtime with nanosecond precision on modern POSIX platforms.
 | 
						|
 | 
						|
- Issue #12802: the Windows error ERROR_DIRECTORY (numbered 267) is now
 | 
						|
  mapped to POSIX errno ENOTDIR (previously EINVAL).
 | 
						|
 | 
						|
- Issue #9200: The str.is* methods now work with strings that contain non-BMP
 | 
						|
  characters even in narrow Unicode builds.
 | 
						|
 | 
						|
- Issue #12791: Break reference cycles early when a generator exits with
 | 
						|
  an exception.
 | 
						|
 | 
						|
- Issue #12773: Make __doc__ mutable on user-defined classes.
 | 
						|
 | 
						|
- Issue #12766: Raise a ValueError when creating a class with a class variable
 | 
						|
  that conflicts with a name in __slots__.
 | 
						|
 | 
						|
- Issue #12266: Fix str.capitalize() to correctly uppercase/lowercase
 | 
						|
  titlecased and cased non-letter characters.
 | 
						|
 | 
						|
- Issue #12732: In narrow unicode builds, allow Unicode identifiers which fall
 | 
						|
  outside the BMP.
 | 
						|
 | 
						|
- Issue #12575: Validate user-generated AST before it is compiled.
 | 
						|
 | 
						|
- Make type(None), type(Ellipsis), and type(NotImplemented) callable. They
 | 
						|
  return the respective singleton instances.
 | 
						|
 | 
						|
- Forbid summing bytes with sum().
 | 
						|
 | 
						|
- Verify the types of AST strings and identifiers provided by the user before
 | 
						|
  compiling them.
 | 
						|
 | 
						|
- Issue #12647: The None object now has a __bool__() method that returns False.
 | 
						|
  Formerly, bool(None) returned False only because of special case logic
 | 
						|
  in PyObject_IsTrue().
 | 
						|
 | 
						|
- Issue #12579: str.format_map() now raises a ValueError if used on a
 | 
						|
  format string that contains positional fields. Initial patch by
 | 
						|
  Julian Berman.
 | 
						|
 | 
						|
- Issue #10271: Allow warnings.showwarning() be any callable.
 | 
						|
 | 
						|
- Issue #11627: Fix segfault when __new__ on a exception returns a
 | 
						|
  non-exception class.
 | 
						|
 | 
						|
- Issue #12149: Update the method cache after a type's dictionary gets
 | 
						|
  cleared by the garbage collector.  This fixes a segfault when an instance
 | 
						|
  and its type get caught in a reference cycle, and the instance's
 | 
						|
  deallocator calls one of the methods on the type (e.g. when subclassing
 | 
						|
  IOBase).  Diagnosis and patch by Davide Rizzo.
 | 
						|
 | 
						|
- Issue #9611, Issue #9015: FileIO.read() clamps the length to INT_MAX on Windows.
 | 
						|
 | 
						|
- Issue #9642: Uniformize the tests on the availability of the mbcs codec, add
 | 
						|
  a new HAVE_MBCS define.
 | 
						|
 | 
						|
- Issue #9642: Fix filesystem encoding initialization: use the ANSI code page
 | 
						|
  on Windows if the mbcs codec is not available, and fail with a fatal error if
 | 
						|
  we cannot get the locale encoding (if nl_langinfo(CODESET) is not available)
 | 
						|
  instead of using UTF-8.
 | 
						|
 | 
						|
- When a generator yields, do not retain the caller's exception state on the
 | 
						|
  generator.
 | 
						|
 | 
						|
- Issue #12475: Prevent generators from leaking their exception state into the
 | 
						|
  caller's frame as they return for the last time.
 | 
						|
 | 
						|
- Issue #12291: You can now load multiple marshalled objects from a stream,
 | 
						|
  with other data interleaved between marshalled objects.
 | 
						|
 | 
						|
- Issue #12356: When required positional or keyword-only arguments are not
 | 
						|
  given, produce a informative error message which includes the name(s) of the
 | 
						|
  missing arguments.
 | 
						|
 | 
						|
- Issue #12370: Fix super with no arguments when __class__ is overriden in the
 | 
						|
  class body.
 | 
						|
 | 
						|
- Issue #12084: os.stat on Windows now works properly with relative symbolic
 | 
						|
  links when called from any directory.
 | 
						|
 | 
						|
- Loosen type restrictions on the __dir__ method. __dir__ can now return any
 | 
						|
  sequence, which will be converted to a list and sorted by dir().
 | 
						|
 | 
						|
- Issue #12265: Make error messages produced by passing an invalid set of
 | 
						|
  arguments to a function more informative.
 | 
						|
 | 
						|
- Issue #12225: Still allow Python to build if Python is not in its hg repo or
 | 
						|
  mercurial is not installed.
 | 
						|
 | 
						|
- Issue #1195: my_fgets() now always clears errors before calling fgets(). Fix
 | 
						|
  the following case: sys.stdin.read() stopped with CTRL+d (end of file),
 | 
						|
  raw_input() interrupted by CTRL+c.
 | 
						|
 | 
						|
- Issue #12216: Allow unexpected EOF errors to happen on any line of the file.
 | 
						|
 | 
						|
- Issue #12199: The TryExcept and TryFinally and AST nodes have been unified
 | 
						|
  into a Try node.
 | 
						|
 | 
						|
- Issue #9670: Increase the default stack size for secondary threads on
 | 
						|
  Mac OS X and FreeBSD to reduce the chances of a crash instead of a
 | 
						|
  "maximum recursion depth" RuntimeError exception.
 | 
						|
  (patch by Ronald Oussoren)
 | 
						|
 | 
						|
- Issue #12106: The use of the multiple-with shorthand syntax is now reflected
 | 
						|
  in the AST.
 | 
						|
 | 
						|
- Issue #12190: Try to use the same filename object when compiling unmarshalling
 | 
						|
  a code objects in the same file.
 | 
						|
 | 
						|
- Issue #12166: Move implementations of dir() specialized for various types into
 | 
						|
  the __dir__() methods of those types.
 | 
						|
 | 
						|
- Issue #5715: In socketserver, close the server socket in the child process.
 | 
						|
 | 
						|
- Correct lookup of __dir__ on objects. Among other things, this causes errors
 | 
						|
  besides AttributeError found on lookup to be propagated.
 | 
						|
 | 
						|
- Issue #12060: Use sig_atomic_t type and volatile keyword in the signal
 | 
						|
  module. Patch written by Charles-François Natali.
 | 
						|
 | 
						|
- Issue #1746656: Added the if_nameindex, if_indextoname, if_nametoindex
 | 
						|
  methods to the socket module.
 | 
						|
 | 
						|
- Issue #12044: Fixed subprocess.Popen when used as a context manager to
 | 
						|
  wait for the process to end when exiting the context to avoid unintentionally
 | 
						|
  leaving zombie processes around.
 | 
						|
 | 
						|
- Issue #1195: Fix input() if it is interrupted by CTRL+d and then CTRL+c,
 | 
						|
  clear the end-of-file indicator after CTRL+d.
 | 
						|
 | 
						|
- Issue #1856: Avoid crashes and lockups when daemon threads run while the
 | 
						|
  interpreter is shutting down; instead, these threads are now killed when
 | 
						|
  they try to take the GIL.
 | 
						|
 | 
						|
- Issue #9756: When calling a method descriptor or a slot wrapper descriptor,
 | 
						|
  the check of the object type doesn't read the __class__ attribute anymore.
 | 
						|
  Fix a crash if a class override its __class__ attribute (e.g. a proxy of the
 | 
						|
  str type). Patch written by Andreas Stührk.
 | 
						|
 | 
						|
- Issue #10517: After fork(), reinitialize the TLS used by the PyGILState_*
 | 
						|
  APIs, to avoid a crash with the pthread implementation in RHEL 5.  Patch
 | 
						|
  by Charles-François Natali.
 | 
						|
 | 
						|
- Issue #10914: Initialize correctly the filesystem codec when creating a new
 | 
						|
  subinterpreter to fix a bootstrap issue with codecs implemented in Python, as
 | 
						|
  the ISO-8859-15 codec.
 | 
						|
 | 
						|
- Issue #11918: OS/2 and VMS are no more supported because of the lack of
 | 
						|
  maintainer.
 | 
						|
 | 
						|
- Issue #6780: fix starts/endswith error message to mention that tuples are
 | 
						|
  accepted too.
 | 
						|
 | 
						|
- Issue #5057: fix a bug in the peepholer that led to non-portable pyc files
 | 
						|
  between narrow and wide builds while optimizing BINARY_SUBSCR on non-BMP
 | 
						|
  chars (e.g. "\U00012345"[0]).
 | 
						|
 | 
						|
- Issue #11845: Fix typo in rangeobject.c that caused a crash in
 | 
						|
  compute_slice_indices.  Patch by Daniel Urban.
 | 
						|
 | 
						|
- Issue #5673: Added a `timeout` keyword argument to subprocess.Popen.wait,
 | 
						|
  subprocess.Popen.communicated, subprocess.call, subprocess.check_call, and
 | 
						|
  subprocess.check_output.  If the blocking operation takes more than `timeout`
 | 
						|
  seconds, the `subprocess.TimeoutExpired` exception is raised.
 | 
						|
 | 
						|
- Issue #11650: PyOS_StdioReadline() retries fgets() if it was interrupted
 | 
						|
  (EINTR), for example if the program is stopped with CTRL+z on Mac OS X. Patch
 | 
						|
  written by Charles-Francois Natali.
 | 
						|
 | 
						|
- Issue #9319: Include the filename in "Non-UTF8 code ..." syntax error.
 | 
						|
 | 
						|
- Issue #10785: Store the filename as Unicode in the Python parser.
 | 
						|
 | 
						|
- Issue #11619: _PyImport_LoadDynamicModule() doesn't encode the path to bytes
 | 
						|
  on Windows.
 | 
						|
 | 
						|
- Issue #10998: Remove mentions of -Q, sys.flags.division_warning and
 | 
						|
  Py_DivisionWarningFlag left over from Python 2.
 | 
						|
 | 
						|
- Issue #11244: Remove an unnecessary peepholer check that was preventing
 | 
						|
  negative zeros from being constant-folded properly.
 | 
						|
 | 
						|
- Issue #11395: io.FileIO().write() clamps the data length to 32,767 bytes on
 | 
						|
  Windows if the file is a TTY to workaround a Windows bug. The Windows console
 | 
						|
  returns an error (12: not enough space error) on writing into stdout if
 | 
						|
  stdout mode is binary and the length is greater than 66,000 bytes (or less,
 | 
						|
  depending on heap usage).
 | 
						|
 | 
						|
- Issue #11320: fix bogus memory management in Modules/getpath.c, leading to
 | 
						|
  a possible crash when calling Py_SetPath().
 | 
						|
 | 
						|
- Issue #11432: A bug was introduced in subprocess.Popen on posix systems with
 | 
						|
  3.2.0 where the stdout or stderr file descriptor being the same as the stdin
 | 
						|
  file descriptor would raise an exception. webbrowser.open would fail. fixed.
 | 
						|
 | 
						|
- Issue #9856: Change object.__format__ with a non-empty format string
 | 
						|
  to be a DeprecationWarning. In 3.2 it was a PendingDeprecationWarning.
 | 
						|
  In 3.4 it will be a TypeError.
 | 
						|
 | 
						|
- Issue #11244: The peephole optimizer is now able to constant-fold
 | 
						|
  arbitrarily complex expressions.  This also fixes a 3.2 regression where
 | 
						|
  operations involving negative numbers were not constant-folded.
 | 
						|
 | 
						|
- Issue #11450: Don't truncate hg version info in Py_GetBuildInfo() when
 | 
						|
  there are many tags (e.g. when using mq).  Patch by Nadeem Vawda.
 | 
						|
 | 
						|
- Issue #11335: Fixed a memory leak in list.sort when the key function
 | 
						|
  throws an exception.
 | 
						|
 | 
						|
- Issue #8923: When a string is encoded to UTF-8 in strict mode, the result is
 | 
						|
  cached into the object. Examples: str.encode(), str.encode('utf-8'),
 | 
						|
  PyUnicode_AsUTF8String() and PyUnicode_AsEncodedString(unicode, "utf-8",
 | 
						|
  NULL).
 | 
						|
 | 
						|
- Issue #10829: Refactor PyUnicode_FromFormat(), use the same function to parse
 | 
						|
  the format string in the 3 steps, fix crashs on invalid format strings.
 | 
						|
 | 
						|
- Issue #13007: whichdb should recognize gdbm 1.9 magic numbers.
 | 
						|
 | 
						|
- Issue #11286: Raise a ValueError from calling PyMemoryView_FromBuffer with
 | 
						|
  a buffer struct having a NULL data pointer.
 | 
						|
 | 
						|
- Issue #11272: On Windows, input() strips '\r' (and not only '\n'), and
 | 
						|
  sys.stdin uses universal newline (replace '\r\n' by '\n').
 | 
						|
 | 
						|
- Issue #11828: startswith and endswith now accept None as slice index.
 | 
						|
  Patch by Torsten Becker.
 | 
						|
 | 
						|
- Issue #11168: Remove filename debug variable from PyEval_EvalFrameEx().
 | 
						|
  It encoded the Unicode filename to UTF-8, but the encoding fails on
 | 
						|
  undecodable filename (on surrogate characters) which raises an unexpected
 | 
						|
  UnicodeEncodeError on recursion limit.
 | 
						|
 | 
						|
- Issue #11187: Remove bootstrap code (use ASCII) of
 | 
						|
  PyUnicode_AsEncodedString(), it was replaced by a better fallback (use the
 | 
						|
  locale encoding) in PyUnicode_EncodeFSDefault().
 | 
						|
 | 
						|
- Check for NULL result in PyType_FromSpec.
 | 
						|
 | 
						|
- Issue #10516: New copy() and clear() methods for lists and bytearrays.
 | 
						|
 | 
						|
- Issue #11386: bytearray.pop() now throws IndexError when the bytearray is
 | 
						|
  empty, instead of OverflowError.
 | 
						|
 | 
						|
- Issue #12380: The rjust, ljust and center methods of bytes and bytearray
 | 
						|
  now accept a bytearray argument.
 | 
						|
 | 
						|
Library
 | 
						|
-------
 | 
						|
 | 
						|
- Issue #14195: An issue that caused weakref.WeakSet instances to incorrectly
 | 
						|
  return True for a WeakSet instance 'a' in both 'a < a' and 'a > a' has been
 | 
						|
  fixed.
 | 
						|
 | 
						|
- Issue #14166: Pickler objects now have an optional ``dispatch_table``
 | 
						|
  attribute which allows to set custom per-pickler reduction functions.
 | 
						|
  Patch by sbt.
 | 
						|
 | 
						|
- Issue #14177: marshal.loads() now raises TypeError when given an unicode
 | 
						|
  string.  Patch by Guilherme Gonçalves.
 | 
						|
 | 
						|
- Issue #13550: Remove the debug machinery from the threading module: remove
 | 
						|
  verbose arguments from all threading classes and functions.
 | 
						|
 | 
						|
- Issue #14159: Fix the len() of weak containers (WeakSet, WeakKeyDictionary,
 | 
						|
  WeakValueDictionary) to return a better approximation when some objects
 | 
						|
  are dead or dying.  Moreover, the implementation is now O(1) rather than
 | 
						|
  O(n).
 | 
						|
 | 
						|
- Issue #11841: Fix comparison bug with 'rc' versions in packaging.version.
 | 
						|
  Patch by Filip Gruszczyński.
 | 
						|
 | 
						|
- Issue #6884: Fix long-standing bugs with MANIFEST.in parsing in distutils
 | 
						|
  on Windows.  Also fixed in packaging.
 | 
						|
 | 
						|
- Issue #8033: sqlite3: Fix 64-bit integer handling in user functions
 | 
						|
  on 32-bit architectures. Initial patch by Philippe Devalkeneer.
 | 
						|
 | 
						|
- HTMLParser is now able to handle slashes in the start tag.
 | 
						|
 | 
						|
- Issue #13641: Decoding functions in the base64 module now accept ASCII-only
 | 
						|
  unicode strings.  Patch by Catalin Iacob.
 | 
						|
 | 
						|
- Issue #14043: Speed up importlib's _FileFinder by at least 8x, and add a
 | 
						|
  new importlib.invalidate_caches() function.
 | 
						|
 | 
						|
- Issue #14001: CVE-2012-0845: xmlrpc: Fix an endless loop in
 | 
						|
  SimpleXMLRPCServer upon malformed POST request.
 | 
						|
 | 
						|
- Issue #13961: Move importlib over to using os.replace() for atomic renaming.
 | 
						|
 | 
						|
- Do away with ambiguous level values (as suggested by PEP 328) in
 | 
						|
  importlib.__import__() by raising ValueError when level < 0.
 | 
						|
 | 
						|
- Issue #2489: pty.spawn could consume 100% cpu when it encountered an EOF.
 | 
						|
 | 
						|
- Issue #13014: Fix a possible reference leak in SSLSocket.getpeercert().
 | 
						|
 | 
						|
- Issue #13777: Add PF_SYSTEM sockets on OS X.
 | 
						|
  Patch by Michael Goderbauer.
 | 
						|
 | 
						|
- Issue #13015: Fix a possible reference leak in defaultdict.__repr__.
 | 
						|
  Patch by Suman Saha.
 | 
						|
 | 
						|
- Issue #1326113: distutils' and packaging's build_ext commands option now
 | 
						|
  correctly parses multiple values (separated by whitespace or commas) given
 | 
						|
  to their --libraries option.
 | 
						|
 | 
						|
- Issue #10287: nntplib now queries the server's CAPABILITIES first before
 | 
						|
  sending MODE READER, and only sends it if not already in READER mode.
 | 
						|
  Patch by Hynek Schlawack.
 | 
						|
 | 
						|
- Issue #13993: HTMLParser is now able to handle broken end tags when
 | 
						|
  strict=False.
 | 
						|
 | 
						|
- Issue #13930: lib2to3 now supports writing converted output files to another
 | 
						|
  directory tree as well as copying unchanged files and altering the file
 | 
						|
  suffix.
 | 
						|
 | 
						|
- Issue #9750: Fix sqlite3.Connection.iterdump on tables and fields
 | 
						|
  with a name that is a keyword or contains quotes. Patch by Marko
 | 
						|
  Kohtala.
 | 
						|
 | 
						|
- Issue #10287: nntplib now queries the server's CAPABILITIES again after
 | 
						|
  authenticating (since the result may change, according to RFC 4643).
 | 
						|
  Patch by Hynek Schlawack.
 | 
						|
 | 
						|
- Issue #13590: On OS X 10.7 and 10.6 with Xcode 4.2, building
 | 
						|
  Distutils-based packages with C extension modules may fail because
 | 
						|
  Apple has removed gcc-4.2, the version used to build python.org
 | 
						|
  64-bit/32-bit Pythons.  If the user does not explicitly override
 | 
						|
  the default C compiler by setting the CC environment variable,
 | 
						|
  Distutils will now attempt to compile extension modules with clang
 | 
						|
  if gcc-4.2 is required but not found. Also as a convenience, if
 | 
						|
  the user does explicitly set CC, substitute its value as the default
 | 
						|
  compiler in the Distutils LDSHARED configuration variable for OS X.
 | 
						|
  (Note, the python.org 32-bit-only Pythons use gcc-4.0 and the 10.4u
 | 
						|
  SDK, neither of which are available in Xcode 4.  This change does not
 | 
						|
  attempt to override settings to support their use with Xcode 4.)
 | 
						|
 | 
						|
- Issue #13960: HTMLParser is now able to handle broken comments when
 | 
						|
  strict=False.
 | 
						|
 | 
						|
- When '' is a path (e.g. in sys.path), make sure __file__ uses the current
 | 
						|
  working directory instead of '' in importlib.
 | 
						|
 | 
						|
- Issue #13609: Add two functions to query the terminal size:
 | 
						|
  os.get_terminal_size (low level) and shutil.get_terminal_size (high level).
 | 
						|
  Patch by Zbigniew Jędrzejewski-Szmek.
 | 
						|
 | 
						|
- Issue #13845: On Windows, time.time() now uses GetSystemTimeAsFileTime()
 | 
						|
  instead of ftime() to have a resolution of 100 ns instead of 1 ms (the clock
 | 
						|
  accuracy is between 0.5 ms and 15 ms).
 | 
						|
 | 
						|
- Issue #13846: Add time.monotonic(), monotonic clock.
 | 
						|
 | 
						|
- Issue #8184: multiprocessing: On Windows, don't set SO_REUSEADDR on
 | 
						|
  Connection sockets, and set FILE_FLAG_FIRST_PIPE_INSTANCE on named pipes, to
 | 
						|
  make sure two listeners can't bind to the same socket/pipe (or any existing
 | 
						|
  socket/pipe).
 | 
						|
 | 
						|
- Issue #10811: Fix recursive usage of cursors. Instead of crashing,
 | 
						|
  raise a ProgrammingError now.
 | 
						|
 | 
						|
- Issue #13734: Add os.fwalk(), a directory walking function yielding file
 | 
						|
  descriptors.
 | 
						|
 | 
						|
- Issue #2945: Make the distutils upload command aware of bdist_rpm products.
 | 
						|
 | 
						|
- Issue #13712: pysetup create should not convert package_data to extra_files.
 | 
						|
 | 
						|
- Issue #11805: package_data in setup.cfg should allow more than one value.
 | 
						|
 | 
						|
- Issue #13676: Handle strings with embedded zeros correctly in sqlite3.
 | 
						|
 | 
						|
- Issue #8828: Add new function os.replace(), for cross-platform renaming
 | 
						|
  with overwriting.
 | 
						|
 | 
						|
- Issue #13848: open() and the FileIO constructor now check for NUL
 | 
						|
  characters in the file name.  Patch by Hynek Schlawack.
 | 
						|
 | 
						|
- Issue #13806: The size check in audioop decompression functions was too
 | 
						|
  strict and could reject valid compressed data.  Patch by Oleg Plakhotnyuk.
 | 
						|
 | 
						|
- Issue #13812: When a multiprocessing Process child raises an exception,
 | 
						|
  flush stderr after printing the exception traceback.
 | 
						|
 | 
						|
- Issue #13885: CVE-2011-3389: the _ssl module would always disable the CBC
 | 
						|
  IV attack countermeasure.
 | 
						|
 | 
						|
- Issue #13847: time.localtime() and time.gmtime() now raise an OSError instead
 | 
						|
  of ValueError on failure. time.ctime() and time.asctime() now raises an
 | 
						|
  OSError if localtime() failed. time.clock() now raises a RuntimeError if the
 | 
						|
  processor time used is not available or its value cannot be represented
 | 
						|
 | 
						|
- Issue #13772: In os.symlink() under Windows, do not try to guess the link
 | 
						|
  target's type (file or directory).  The detection was buggy and made the
 | 
						|
  call non-atomic (therefore prone to race conditions).
 | 
						|
 | 
						|
- Issue #6631: Disallow relative file paths in urllib urlopen methods.
 | 
						|
 | 
						|
- Issue #13722: Avoid silencing ImportErrors when initializing the codecs
 | 
						|
  registry.
 | 
						|
 | 
						|
- Issue #13781: Fix GzipFile bug that caused an exception to be raised when
 | 
						|
  opening for writing using a fileobj returned by os.fdopen().
 | 
						|
 | 
						|
- Issue #13803: Under Solaris, distutils doesn't include bitness
 | 
						|
  in the directory name.
 | 
						|
 | 
						|
- Issue #10278: Add time.wallclock() function, monotonic clock.
 | 
						|
 | 
						|
- Issue #13809: Fix regression where bz2 module wouldn't work when threads are
 | 
						|
  disabled. Original patch by Amaury Forgeot d'Arc.
 | 
						|
 | 
						|
- Issue #13589: Fix some serialization primitives in the aifc module.
 | 
						|
  Patch by Oleg Plakhotnyuk.
 | 
						|
 | 
						|
- Issue #13642: Unquote before b64encoding user:password during Basic
 | 
						|
  Authentication. Patch contributed by Joonas Kuorilehto.
 | 
						|
 | 
						|
- Issue #12364: Fix a hang in concurrent.futures.ProcessPoolExecutor.
 | 
						|
  The hang would occur when retrieving the result of a scheduled future after
 | 
						|
  the executor had been shut down.
 | 
						|
 | 
						|
- Issue #13502: threading: Fix a race condition in Event.wait() that made it
 | 
						|
  return False when the event was set and cleared right after.
 | 
						|
 | 
						|
- Issue #9993: When the source and destination are on different filesystems,
 | 
						|
  and the source is a symlink, shutil.move() now recreates a symlink on the
 | 
						|
  destination instead of copying the file contents.  Patch by Jonathan Niehof
 | 
						|
  and Hynek Schlawack.
 | 
						|
 | 
						|
- Issue #12926: Fix a bug in tarfile's link extraction.
 | 
						|
 | 
						|
- Issue #13696: Fix the 302 Relative URL Redirection problem.
 | 
						|
 | 
						|
- Issue #13636: Weak ciphers are now disabled by default in the ssl module
 | 
						|
  (except when SSLv2 is explicitly asked for).
 | 
						|
 | 
						|
- Issue #12715: Add an optional symlinks argument to shutil functions
 | 
						|
  (copyfile, copymode, copystat, copy, copy2).  When that parameter is
 | 
						|
  true, symlinks aren't dereferenced and the operation instead acts on the
 | 
						|
  symlink itself (or creates one, if relevant).  Patch by Hynek Schlawack.
 | 
						|
 | 
						|
- Add a flags parameter to select.epoll.
 | 
						|
 | 
						|
- Issue #13626: Add support for SSL Diffie-Hellman key exchange, through the
 | 
						|
  SSLContext.load_dh_params() method and the ssl.OP_SINGLE_DH_USE option.
 | 
						|
 | 
						|
- Issue #11006: Don't issue low level warning in subprocess when pipe2() fails.
 | 
						|
 | 
						|
- Issue #13620: Support for Chrome browser in webbrowser.  Patch contributed
 | 
						|
  by Arnaud Calmettes.
 | 
						|
 | 
						|
- Issue #11829: Fix code execution holes in inspect.getattr_static for
 | 
						|
  metaclasses with metaclasses. Patch by Andreas Stührk.
 | 
						|
 | 
						|
- Issue #12708: Add starmap() and starmap_async() methods (similar to
 | 
						|
  itertools.starmap()) to multiprocessing.Pool.  Patch by Hynek Schlawack.
 | 
						|
 | 
						|
- Issue #1785: Fix inspect and pydoc with misbehaving descriptors.
 | 
						|
 | 
						|
- Issue #13637: "a2b" functions in the binascii module now accept ASCII-only
 | 
						|
  unicode strings.
 | 
						|
 | 
						|
- Issue #13634: Add support for querying and disabling SSL compression.
 | 
						|
 | 
						|
- Issue #13627: Add support for SSL Elliptic Curve-based Diffie-Hellman
 | 
						|
  key exchange, through the SSLContext.set_ecdh_curve() method and the
 | 
						|
  ssl.OP_SINGLE_ECDH_USE option.
 | 
						|
 | 
						|
- Issue #13635: Add ssl.OP_CIPHER_SERVER_PREFERENCE, so that SSL servers
 | 
						|
  choose the cipher based on their own preferences, rather than on the
 | 
						|
  client's.
 | 
						|
 | 
						|
- Issue #11813: Fix inspect.getattr_static for modules. Patch by Andreas
 | 
						|
  Stührk.
 | 
						|
 | 
						|
- Issue #7502: Fix equality comparison for DocTestCase instances.  Patch by
 | 
						|
  Cédric Krier.
 | 
						|
 | 
						|
- Issue #11870: threading: Properly reinitialize threads internal locks and
 | 
						|
  condition variables to avoid deadlocks in child processes.
 | 
						|
 | 
						|
- Issue #8035: urllib: Fix a bug where the client could remain stuck after a
 | 
						|
  redirection or an error.
 | 
						|
 | 
						|
- Issue #13560: os.strerror() now uses the current locale encoding instead of
 | 
						|
  UTF-8.
 | 
						|
 | 
						|
- Issue #8373: The filesystem path of AF_UNIX sockets now uses the filesystem
 | 
						|
  encoding and the surrogateescape error handler, rather than UTF-8.  Patch
 | 
						|
  by David Watson.
 | 
						|
 | 
						|
- Issue #10350: Read and save errno before calling a function which might
 | 
						|
  overwrite it.  Original patch by Hallvard B Furuseth.
 | 
						|
 | 
						|
- Issue #11610: Introduce a more general way to declare abstract properties.
 | 
						|
 | 
						|
- Issue #13591: A bug in importlib has been fixed that caused import_module
 | 
						|
  to load a module twice.
 | 
						|
 | 
						|
- Issue #13449 sched.scheduler.run() method has a new "blocking" parameter which
 | 
						|
  when set to False makes run() execute the scheduled events due to expire
 | 
						|
  soonest (if any) and then return.  Patch by Giampaolo Rodolà.
 | 
						|
 | 
						|
- Issue #8684 sched.scheduler class can be safely used in multi-threaded
 | 
						|
  environments.  Patch by Josiah Carlson and Giampaolo Rodolà.
 | 
						|
 | 
						|
- Alias resource.error to OSError ala PEP 3151.
 | 
						|
 | 
						|
- Issue #5689: Add support for lzma compression to the tarfile module.
 | 
						|
 | 
						|
- Issue #13248: Turn 3.2's PendingDeprecationWarning into 3.3's
 | 
						|
  DeprecationWarning.  It covers 'cgi.escape', 'importlib.abc.PyLoader',
 | 
						|
  'importlib.abc.PyPycLoader', 'nntplib.NNTP.xgtitle', 'nntplib.NNTP.xpath',
 | 
						|
  and private attributes of 'smtpd.SMTPChannel'.
 | 
						|
 | 
						|
- Issue #5905, Issue #13560: time.strftime() is now using the current locale
 | 
						|
  encoding, instead of UTF-8, if the wcsftime() function is not available.
 | 
						|
 | 
						|
- Issue #13464: Add a readinto() method to http.client.HTTPResponse.  Patch
 | 
						|
  by Jon Kuhn.
 | 
						|
 | 
						|
- tarfile.py: Correctly detect bzip2 compressed streams with blocksizes
 | 
						|
  other than 900k.
 | 
						|
 | 
						|
- Issue #13439: Fix many errors in turtle docstrings.
 | 
						|
 | 
						|
- Issue #6715: Add a module 'lzma' for compression using the LZMA algorithm.
 | 
						|
  Thanks to Per Øyvind Karlsen for the initial implementation.
 | 
						|
 | 
						|
- Issue #13487: Make inspect.getmodule robust against changes done to
 | 
						|
  sys.modules while it is iterating over it.
 | 
						|
 | 
						|
- Issue #12618: Fix a bug that prevented py_compile from creating byte
 | 
						|
  compiled files in the current directory.  Initial patch by Sjoerd de Vries.
 | 
						|
 | 
						|
- Issue #13444: When stdout has been closed explicitly, we should not attempt
 | 
						|
  to flush it at shutdown and print an error.
 | 
						|
 | 
						|
- Issue #12567: The curses module uses Unicode functions for Unicode arguments
 | 
						|
  when it is linked to the ncurses library. It encodes also Unicode strings to
 | 
						|
  the locale encoding instead of UTF-8.
 | 
						|
 | 
						|
- Issue #12856: Ensure child processes do not inherit the parent's random
 | 
						|
  seed for filename generation in the tempfile module.  Patch by Brian
 | 
						|
  Harring.
 | 
						|
 | 
						|
- Issue #9957: SpooledTemporaryFile.truncate() now accepts an optional size
 | 
						|
  parameter, as other file-like objects.  Patch by Ryan Kelly.
 | 
						|
 | 
						|
- Issue #13458: Fix a memory leak in the ssl module when decoding a
 | 
						|
  certificate with a subjectAltName.  Patch by Robert Xiao.
 | 
						|
 | 
						|
- Issue #13415: os.unsetenv() doesn't ignore errors anymore.
 | 
						|
 | 
						|
- Issue #13245: sched.scheduler class constructor's timefunc and
 | 
						|
  delayfunct parameters are now optional.
 | 
						|
  scheduler.enter and scheduler.enterabs methods gained a new kwargs parameter.
 | 
						|
  Patch contributed by Chris Clark.
 | 
						|
 | 
						|
- Issue #12328: Under Windows, refactor handling of Ctrl-C events and
 | 
						|
  make _multiprocessing.win32.WaitForMultipleObjects interruptible when
 | 
						|
  the wait_flag parameter is false.  Patch by sbt.
 | 
						|
 | 
						|
- Issue #13322: Fix BufferedWriter.write() to ensure that BlockingIOError is
 | 
						|
  raised when the wrapped raw file is non-blocking and the write would block.
 | 
						|
  Previous code assumed that the raw write() would raise BlockingIOError, but
 | 
						|
  RawIOBase.write() is defined to returned None when the call would block.
 | 
						|
  Patch by sbt.
 | 
						|
 | 
						|
- Issue #13358: HTMLParser now calls handle_data only once for each CDATA.
 | 
						|
 | 
						|
- Issue #4147: minidom's toprettyxml no longer adds whitespace around a text
 | 
						|
  node when it is the only child of an element.  Initial patch by Dan
 | 
						|
  Kenigsberg.
 | 
						|
 | 
						|
- Issue #13374: The Windows bytes API has been deprecated in the os module. Use
 | 
						|
  Unicode filenames instead of bytes filenames to not depend on the ANSI code
 | 
						|
  page anymore and to support any filename.
 | 
						|
 | 
						|
- Issue #13297: Use bytes type to send and receive binary data through XMLRPC.
 | 
						|
 | 
						|
- Issue #6397: Support "/dev/poll" polling objects in select module,
 | 
						|
  under Solaris & derivatives.
 | 
						|
 | 
						|
- Issues #1745761, #755670, #13357, #12629, #1200313: HTMLParser now correctly
 | 
						|
  handles non-valid attributes, including adjacent and unquoted attributes.
 | 
						|
 | 
						|
- Issue #13193: Fix distutils.filelist.FileList and packaging.manifest.Manifest
 | 
						|
  under Windows.
 | 
						|
 | 
						|
- Issue #13384: Remove unnecessary __future__ import in Lib/random.py
 | 
						|
 | 
						|
- Issue #13149: Speed up append-only StringIO objects.
 | 
						|
 | 
						|
- Issue #13373: multiprocessing.Queue.get() could sometimes block indefinitely
 | 
						|
  when called with a timeout.  Patch by Arnaud Ysmal.
 | 
						|
 | 
						|
- Issue #13254: Fix Maildir initialization so that maildir contents
 | 
						|
  are read correctly.
 | 
						|
 | 
						|
- Issue #3067: locale.setlocale() now raises TypeError if the second
 | 
						|
  argument is an invalid iterable. Its documentation and docstring
 | 
						|
  were also updated. Initial patch by Jyrki Pulliainen.
 | 
						|
 | 
						|
- Issue #13140: Fix the daemon_threads attribute of ThreadingMixIn.
 | 
						|
 | 
						|
- Issue #13339: Fix compile error in posixmodule.c due to missing semicolon.
 | 
						|
  Thanks to Robert Xiao.
 | 
						|
 | 
						|
- Byte compilation in packaging is now isolated from the calling Python -B or
 | 
						|
  -O options, instead of being disallowed under -B or buggy under -O.
 | 
						|
 | 
						|
- Issue #10570: curses.putp() and curses.tparm() are now expecting a byte
 | 
						|
  string, instead of a Unicode string.
 | 
						|
 | 
						|
- Issue #13295: http.server now produces valid HTML 4.01 strict.
 | 
						|
 | 
						|
- Issue #2892: preserve iterparse events in case of SyntaxError.
 | 
						|
 | 
						|
- Issue #13287: urllib.request and urllib.error now contains an __all__
 | 
						|
  attribute to expose only relevant classes and functions.  Patch by Florent
 | 
						|
  Xicluna.
 | 
						|
 | 
						|
- Issue #670664: Fix HTMLParser to correctly handle the content of
 | 
						|
  ``<script>...</script>`` and ``<style>...</style>``.
 | 
						|
 | 
						|
- Issue #10817: Fix urlretrieve function to raise ContentTooShortError even
 | 
						|
  when reporthook is None. Patch by Jyrki Pulliainen.
 | 
						|
 | 
						|
- Fix the xmlrpc.client user agent to return something similar to
 | 
						|
  urllib.request user agent: "Python-xmlrpc/3.3".
 | 
						|
 | 
						|
- Issue #13293: Better error message when trying to marshal bytes using
 | 
						|
  xmlrpc.client.
 | 
						|
 | 
						|
- Issue #13291: NameError in xmlrpc package.
 | 
						|
 | 
						|
- Issue #13258: Use callable() built-in in the standard library.
 | 
						|
 | 
						|
- Issue #13273: fix a bug that prevented HTMLParser to properly detect some
 | 
						|
  tags when strict=False.
 | 
						|
 | 
						|
- Issue #11183: Add finer-grained exceptions to the ssl module, so that
 | 
						|
  you don't have to inspect the exception's attributes in the common case.
 | 
						|
 | 
						|
- Issue #13216: Add cp65001 codec, the Windows UTF-8 (CP_UTF8).
 | 
						|
 | 
						|
- Issue #13226: Add RTLD_xxx constants to the os module. These constants can be
 | 
						|
  used with sys.setdlopenflags().
 | 
						|
 | 
						|
- Issue #10278: Add clock_getres(), clock_gettime() and CLOCK_xxx constants to
 | 
						|
  the time module. time.clock_gettime(time.CLOCK_MONOTONIC) provides a
 | 
						|
  monotonic clock
 | 
						|
 | 
						|
- Issue #10332: multiprocessing: fix a race condition when a Pool is closed
 | 
						|
  before all tasks have completed.
 | 
						|
 | 
						|
- Issue #13255: wrong docstrings in array module.
 | 
						|
 | 
						|
- Issue #8540: Remove deprecated Context._clamp attribute in Decimal module.
 | 
						|
 | 
						|
- Issue #13235: Added DeprecationWarning to logging.warn() method and function.
 | 
						|
 | 
						|
- Issue #9168: now smtpd is able to bind privileged port.
 | 
						|
 | 
						|
- Issue #12529: fix cgi.parse_header issue on strings with double-quotes and
 | 
						|
  semicolons together. Patch by Ben Darnell and Petri Lehtinen.
 | 
						|
 | 
						|
- Issue #13227: functools.lru_cache() now has a option to distinguish
 | 
						|
  calls with different argument types.
 | 
						|
 | 
						|
- Issue #6090: zipfile raises a ValueError when a document with a timestamp
 | 
						|
  earlier than 1980 is provided. Patch contributed by Petri Lehtinen.
 | 
						|
 | 
						|
- Issue #13150: sysconfig no longer parses the Makefile and config.h files
 | 
						|
  when imported, instead doing it at build time.  This makes importing
 | 
						|
  sysconfig faster and reduces Python startup time by 20%.
 | 
						|
 | 
						|
- Issue #12448: smtplib now flushes stdout while running ``python -m smtplib``
 | 
						|
  in order to display the prompt correctly.
 | 
						|
 | 
						|
- Issue #12454: The mailbox module is now using ASCII, instead of the locale
 | 
						|
  encoding, to read and write .mh_sequences files.
 | 
						|
 | 
						|
- Issue #13194: zlib.compressobj().copy() and zlib.decompressobj().copy() are
 | 
						|
  now available on Windows.
 | 
						|
 | 
						|
- Issue #1673007: urllib.request now supports HEAD request via new method argument.
 | 
						|
  Patch contributions by David Stanek, Patrick Westerhoff and Ezio Melotti.
 | 
						|
 | 
						|
- Issue #12386: packaging does not fail anymore when writing the RESOURCES
 | 
						|
  file.
 | 
						|
 | 
						|
- Issue #13158: Fix decoding and encoding of GNU tar specific base-256 number
 | 
						|
  fields in tarfile.
 | 
						|
 | 
						|
- Issue #13025: mimetypes is now reading MIME types using the UTF-8 encoding,
 | 
						|
  instead of the locale encoding.
 | 
						|
 | 
						|
- Issue #10653: On Windows, use strftime() instead of wcsftime() because
 | 
						|
  wcsftime() doesn't format time zone correctly.
 | 
						|
 | 
						|
- Issue #13150: The tokenize module doesn't compile large regular expressions
 | 
						|
  at startup anymore.
 | 
						|
 | 
						|
- Issue #11171: Fix distutils.sysconfig.get_makefile_filename when Python was
 | 
						|
  configured with different prefix and exec-prefix.
 | 
						|
 | 
						|
- Issue #11254: Teach distutils and packaging to compile .pyc and .pyo files in
 | 
						|
  PEP 3147-compliant __pycache__ directories.
 | 
						|
 | 
						|
- Issue #7367: Fix pkgutil.walk_paths to skip directories whose
 | 
						|
  contents cannot be read.
 | 
						|
 | 
						|
- Issue #3163: The struct module gets new format characters 'n' and 'N'
 | 
						|
  supporting C integer types ``ssize_t`` and ``size_t``, respectively.
 | 
						|
 | 
						|
- Issue #13099: Fix sqlite3.Cursor.lastrowid under a Turkish locale.
 | 
						|
  Reported and diagnosed by Thomas Kluyver.
 | 
						|
 | 
						|
- Issue #13087: BufferedReader.seek() now always raises UnsupportedOperation
 | 
						|
  if the underlying raw stream is unseekable, even if the seek could be
 | 
						|
  satisfied using the internal buffer.  Patch by John O'Connor.
 | 
						|
 | 
						|
- Issue #7689: Allow pickling of dynamically created classes when their
 | 
						|
  metaclass is registered with copyreg.  Patch by Nicolas M. Thiéry and Craig
 | 
						|
  Citro.
 | 
						|
 | 
						|
- Issue #13034: When decoding some SSL certificates, the subjectAltName
 | 
						|
  extension could be unreported.
 | 
						|
 | 
						|
- Issue #12306: Expose the runtime version of the zlib C library as a constant,
 | 
						|
  ZLIB_RUNTIME_VERSION, in the zlib module. Patch by Torsten Landschoff.
 | 
						|
 | 
						|
- Issue #12959: Add collections.ChainMap to collections.__all__.
 | 
						|
 | 
						|
- Issue #8933: distutils' PKG-INFO files and packaging's METADATA files will
 | 
						|
  now correctly report Metadata-Version: 1.1 instead of 1.0 if a Classifier or
 | 
						|
  Download-URL field is present.
 | 
						|
 | 
						|
- Issue #12567: Add curses.unget_wch() function. Push a character so the next
 | 
						|
  get_wch() will return it.
 | 
						|
 | 
						|
- Issue #9561: distutils and packaging now writes egg-info files using UTF-8,
 | 
						|
  instead of the locale encoding.
 | 
						|
 | 
						|
- Issue #8286: The distutils command sdist will print a warning message instead
 | 
						|
  of crashing when an invalid path is given in the manifest template.
 | 
						|
 | 
						|
- Issue #12841: tarfile unnecessarily checked the existence of numerical user
 | 
						|
  and group ids on extraction. If one of them did not exist the respective id
 | 
						|
  of the current user (i.e. root) was used for the file and ownership
 | 
						|
  information was lost.
 | 
						|
 | 
						|
- Issue #12888: Fix a bug in HTMLParser.unescape that prevented it to escape
 | 
						|
  more than 128 entities.  Patch by Peter Otten.
 | 
						|
 | 
						|
- Issue #12878: Expose a __dict__ attribute on io.IOBase and its subclasses.
 | 
						|
 | 
						|
- Issue #12494: On error, call(), check_call(), check_output() and
 | 
						|
  getstatusoutput() functions of the subprocess module now kill the process,
 | 
						|
  read its status (to avoid zombis) and close pipes.
 | 
						|
 | 
						|
- Issue #12720: Expose low-level Linux extended file attribute functions in os.
 | 
						|
 | 
						|
- Issue #10946: The distutils commands bdist_dumb, bdist_wininst and bdist_msi
 | 
						|
  now respect a --skip-build option given to bdist.  The packaging commands
 | 
						|
  were fixed too.
 | 
						|
 | 
						|
- Issue #12847: Fix a crash with negative PUT and LONG_BINPUT arguments in
 | 
						|
  the C pickle implementation.
 | 
						|
 | 
						|
- Issue #11564: Avoid crashes when trying to pickle huge objects or containers
 | 
						|
  (more than 2**31 items).  Instead, in most cases, an OverflowError is raised.
 | 
						|
 | 
						|
- Issue #12287: Fix a stack corruption in ossaudiodev module when the FD is
 | 
						|
  greater than FD_SETSIZE.
 | 
						|
 | 
						|
- Issue #12839: Fix crash in zlib module due to version mismatch.
 | 
						|
  Fix by Richard M. Tew.
 | 
						|
 | 
						|
- Issue #9923: The mailcap module now correctly uses the platform path
 | 
						|
  separator for the MAILCAP environment variable on non-POSIX platforms.
 | 
						|
 | 
						|
- Issue #12835: Follow up to #6560 that unconditionally prevents use of the
 | 
						|
  unencrypted sendmsg/recvmsg APIs on SSL wrapped sockets. Patch by David
 | 
						|
  Watson.
 | 
						|
 | 
						|
- Issue #12803: SSLContext.load_cert_chain() now accepts a password argument
 | 
						|
  to be used if the private key is encrypted.  Patch by Adam Simpkins.
 | 
						|
 | 
						|
- Issue #11657: Fix sending file descriptors over 255 over a multiprocessing
 | 
						|
  Pipe.
 | 
						|
 | 
						|
- Issue #12811: tabnanny.check() now promptly closes checked files. Patch by
 | 
						|
  Anthony Briggs.
 | 
						|
 | 
						|
- Issue #6560: The sendmsg/recvmsg API is now exposed by the socket module
 | 
						|
  when provided by the underlying platform, supporting processing of
 | 
						|
  ancillary data in pure Python code. Patch by David Watson and Heiko Wundram.
 | 
						|
 | 
						|
- Issue #12326: On Linux, sys.platform doesn't contain the major version
 | 
						|
  anymore. It is now always 'linux', instead of 'linux2' or 'linux3' depending
 | 
						|
  on the Linux version used to build Python.
 | 
						|
 | 
						|
- Issue #12213: Fix a buffering bug with interleaved reads and writes that
 | 
						|
  could appear on BufferedRandom streams.
 | 
						|
 | 
						|
- Issue #12778: Reduce memory consumption when JSON-encoding a large
 | 
						|
  container of many small objects.
 | 
						|
 | 
						|
- Issue #12650: Fix a race condition where a subprocess.Popen could leak
 | 
						|
  resources (FD/zombie) when killed at the wrong time.
 | 
						|
 | 
						|
- Issue #12744: Fix inefficient representation of integers between 2**31 and
 | 
						|
  2**63 on systems with a 64-bit C "long".
 | 
						|
 | 
						|
- Issue #12646: Add an 'eof' attribute to zlib.Decompress, to make it easier to
 | 
						|
  detect truncated input streams.
 | 
						|
 | 
						|
- Issue #11513: Fix exception handling ``tarfile.TarFile.gzopen()`` when
 | 
						|
  the file cannot be opened.
 | 
						|
 | 
						|
- Issue #12687: Fix a possible buffering bug when unpickling text mode
 | 
						|
  (protocol 0, mostly) pickles.
 | 
						|
 | 
						|
- Issue #10087: Fix the html output format of the calendar module.
 | 
						|
 | 
						|
- Issue #13121: add support for inplace math operators to collections.Counter.
 | 
						|
 | 
						|
- Add support for unary plus and unary minus to collections.Counter.
 | 
						|
 | 
						|
- Issue #12683: urlparse updated to include svn as schemes that uses relative
 | 
						|
  paths. (svn from 1.5 onwards support relative path).
 | 
						|
 | 
						|
- Issue #12655: Expose functions from sched.h in the os module: sched_yield(),
 | 
						|
  sched_setscheduler(), sched_getscheduler(), sched_setparam(),
 | 
						|
  sched_get_min_priority(), sched_get_max_priority(), sched_rr_get_interval(),
 | 
						|
  sched_getaffinity(), sched_setaffinity().
 | 
						|
 | 
						|
- Add ThreadError to threading.__all__.
 | 
						|
 | 
						|
- Issues #11104, #8688: Fix the behavior of distutils' sdist command with
 | 
						|
  manually-maintained MANIFEST files.
 | 
						|
 | 
						|
- Issue #11281: smtplib.STMP gets source_address parameter, which adds the
 | 
						|
  ability to bind to specific source address on a machine with multiple
 | 
						|
  interfaces. Patch by Paulo Scardine.
 | 
						|
 | 
						|
- Issue #12464: tempfile.TemporaryDirectory.cleanup() should not follow
 | 
						|
  symlinks: fix it. Patch by Petri Lehtinen.
 | 
						|
 | 
						|
- Issue #8887: "pydoc somebuiltin.somemethod" (or help('somebuiltin.somemethod')
 | 
						|
  in Python code) now finds the doc of the method.
 | 
						|
 | 
						|
- Issue #10968: Remove indirection in threading.  The public names (Event,
 | 
						|
  Condition, etc.) used to be factory functions returning instances of hidden
 | 
						|
  classes (_Event, _Condition, etc.), because (if Guido recalls correctly) this
 | 
						|
  code pre-dates the ability to subclass extension types.  It is now possible
 | 
						|
  to inherit from these classes, without having to import the private
 | 
						|
  underscored names like multiprocessing did.
 | 
						|
 | 
						|
- Issue #9723: Add shlex.quote functions, to escape filenames and command
 | 
						|
  lines.
 | 
						|
 | 
						|
- Issue #12603: Fix pydoc.synopsis() on files with non-negative st_mtime.
 | 
						|
 | 
						|
- Issue #12514: Use try/finally to assure the timeit module restores garbage
 | 
						|
  collections when it is done.
 | 
						|
 | 
						|
- Issue #12607: In subprocess, fix issue where if stdin, stdout or stderr is
 | 
						|
  given as a low fd, it gets overwritten.
 | 
						|
 | 
						|
- Issue #12576: Fix urlopen behavior on sites which do not send (or obfuscates)
 | 
						|
  ``Connection: close`` header.
 | 
						|
 | 
						|
- Issue #12560: Build libpython.so on OpenBSD. Patch by Stefan Sperling.
 | 
						|
 | 
						|
- Issue #1813: Fix codec lookup under Turkish locales.
 | 
						|
 | 
						|
- Issue #12591: Improve support of "universal newlines" in the subprocess
 | 
						|
  module: the piped streams can now be properly read from or written to.
 | 
						|
 | 
						|
- Issue #12591: Allow io.TextIOWrapper to work with raw IO objects (without
 | 
						|
  a read1() method), and add a *write_through* parameter to mandate
 | 
						|
  unbuffered writes.
 | 
						|
 | 
						|
- Issue #10883: Fix socket leaks in urllib.request when using FTP.
 | 
						|
 | 
						|
- Issue #12592: Make Python build on OpenBSD 5 (and future major releases).
 | 
						|
 | 
						|
- Issue #12372: POSIX semaphores are broken on AIX: don't use them.
 | 
						|
 | 
						|
- Issue #12551: Provide a get_channel_binding() method on SSL sockets so as
 | 
						|
  to get channel binding data for the current SSL session (only the
 | 
						|
  "tls-unique" channel binding is implemented).  This allows the implementation
 | 
						|
  of certain authentication mechanisms such as SCRAM-SHA-1-PLUS.  Patch by
 | 
						|
  Jacek Konieczny.
 | 
						|
 | 
						|
- Issue #665194: email.utils now has format_datetime and parsedate_to_datetime
 | 
						|
  functions, allowing for round tripping of RFC2822 format dates.
 | 
						|
 | 
						|
- Issue #12571: Add a plat-linux3 directory mirroring the plat-linux2
 | 
						|
  directory, so that "import DLFCN" and other similar imports work on
 | 
						|
  Linux 3.0.
 | 
						|
 | 
						|
- Issue #7484: smtplib no longer puts <> around addresses in VRFY and EXPN
 | 
						|
  commands; they aren't required and in fact postfix doesn't support that form.
 | 
						|
 | 
						|
- Issue #12273: Remove ast.__version__. AST changes can be accounted for by
 | 
						|
  checking sys.version_info or sys._mercurial.
 | 
						|
 | 
						|
- Silence spurious "broken pipe" tracebacks when shutting down a
 | 
						|
  ProcessPoolExecutor.
 | 
						|
 | 
						|
- Fix potential resource leaks in concurrent.futures.ProcessPoolExecutor
 | 
						|
  by joining all queues and processes when shutdown() is called.
 | 
						|
 | 
						|
- Issue #11603: Fix a crash when __str__ is rebound as __repr__.  Patch by
 | 
						|
  Andreas Stührk.
 | 
						|
 | 
						|
- Issue #11321: Fix a crash with multiple imports of the _pickle module when
 | 
						|
  embedding Python.  Patch by Andreas Stührk.
 | 
						|
 | 
						|
- Issue #6755: Add get_wch() method to curses.window class. Patch by Iñigo
 | 
						|
  Serna.
 | 
						|
 | 
						|
- Add cgi.closelog() function to close the log file.
 | 
						|
 | 
						|
- Issue #12502: asyncore: fix polling loop with AF_UNIX sockets.
 | 
						|
 | 
						|
- Issue #4376: ctypes now supports nested structures in a endian different than
 | 
						|
  the parent structure. Patch by Vlad Riscutia.
 | 
						|
 | 
						|
- Raise ValueError when attempting to set the _CHUNK_SIZE attribute of a
 | 
						|
  TextIOWrapper to a huge value, not TypeError.
 | 
						|
 | 
						|
- Issue #12504: Close file handles in a timely manner in packaging.database.
 | 
						|
  This fixes a bug with the remove (uninstall) feature on Windows.
 | 
						|
 | 
						|
- Issues #12169 and #10510: Factor out code used by various packaging commands
 | 
						|
  to make HTTP POST requests, and make sure it uses CRLF.
 | 
						|
 | 
						|
- Issue #12016: Multibyte CJK decoders now resynchronize faster. They only
 | 
						|
  ignore the first byte of an invalid byte sequence. For example,
 | 
						|
  b'\xff\n'.decode('gb2312', 'replace') gives '\ufffd\n' instead of '\ufffd'.
 | 
						|
 | 
						|
- Issue #12459: time.sleep() now raises a ValueError if the sleep length is
 | 
						|
  negative, instead of an infinite sleep on Windows or raising an IOError on
 | 
						|
  Linux for example, to have the same behaviour on all platforms.
 | 
						|
 | 
						|
- Issue #12451: pydoc: html_getfile() now uses tokenize.open() to support
 | 
						|
  Python scripts using a encoding different than UTF-8 (read the coding cookie
 | 
						|
  of the script).
 | 
						|
 | 
						|
- Issue #12493: subprocess: Popen.communicate() now also handles EINTR errors
 | 
						|
  if the process has only one pipe.
 | 
						|
 | 
						|
- Issue #12467: warnings: fix a race condition if a warning is emitted at
 | 
						|
  shutdown, if globals()['__file__'] is None.
 | 
						|
 | 
						|
- Issue #12451: pydoc: importfile() now opens the Python script in binary mode,
 | 
						|
  instead of text mode using the locale encoding, to avoid encoding issues.
 | 
						|
 | 
						|
- Issue #12451: runpy: run_path() now opens the Python script in binary mode,
 | 
						|
  instead of text mode using the locale encoding, to support other encodings
 | 
						|
  than UTF-8 (scripts using the coding cookie).
 | 
						|
 | 
						|
- Issue #12451: xml.dom.pulldom: parse() now opens files in binary mode instead
 | 
						|
  of the text mode (using the locale encoding) to avoid encoding issues.
 | 
						|
 | 
						|
- Issue #12147: Adjust the new-in-3.2 smtplib.send_message method for better
 | 
						|
  conformance to the RFCs: correctly handle Sender and Resent- headers.
 | 
						|
 | 
						|
- Issue #12352: Fix a deadlock in multiprocessing.Heap when a block is freed by
 | 
						|
  the garbage collector while the Heap lock is held.
 | 
						|
 | 
						|
- Issue #12462: time.sleep() now immediately calls the (Python) signal handler
 | 
						|
  if it is interrupted by a signal, instead of having to wait until the next
 | 
						|
  instruction.
 | 
						|
 | 
						|
- Issue #12442: new shutil.disk_usage function, providing total, used and free
 | 
						|
  disk space statistics.
 | 
						|
 | 
						|
- Issue #12451: The XInclude default loader of xml.etree now decodes files from
 | 
						|
  UTF-8 instead of the locale encoding if the encoding is not specified. It now
 | 
						|
  also opens XML files for the parser in binary mode instead of the text mode
 | 
						|
  to avoid encoding issues.
 | 
						|
 | 
						|
- Issue #12451: doctest.debug_script() doesn't create a temporary file
 | 
						|
  anymore to avoid encoding issues.
 | 
						|
 | 
						|
- Issue #12451: pydoc.synopsis() now reads the encoding cookie if available,
 | 
						|
  to read the Python script from the right encoding.
 | 
						|
 | 
						|
- Issue #12451: distutils now opens the setup script in binary mode to read the
 | 
						|
  encoding cookie, instead of opening it in UTF-8.
 | 
						|
 | 
						|
- Issue #9516: On Mac OS X, change Distutils to no longer globally attempt to
 | 
						|
  check or set the MACOSX_DEPLOYMENT_TARGET environment variable for the
 | 
						|
  interpreter process.  This could cause failures in non-Distutils subprocesses
 | 
						|
  and was unreliable since tests or user programs could modify the interpreter
 | 
						|
  environment after Distutils set it.  Instead, have Distutils set the
 | 
						|
  deployment target only in the environment of each build subprocess.  It is
 | 
						|
  still possible to globally override the default by setting
 | 
						|
  MACOSX_DEPLOYMENT_TARGET before launching the interpreter; its value must be
 | 
						|
  greater or equal to the default value, the value with which the interpreter
 | 
						|
  was built.  Also, implement the same handling in packaging.
 | 
						|
 | 
						|
- Issue #12422: In the copy module, don't store objects that are their own copy
 | 
						|
  in the memo dict.
 | 
						|
 | 
						|
- Issue #12303: Add sigwaitinfo() and sigtimedwait() to the signal module.
 | 
						|
 | 
						|
- Issue #12404: Remove C89 incompatible code from mmap module. Patch by Akira
 | 
						|
  Kitada.
 | 
						|
 | 
						|
- Issue #1874: email now detects and reports as a defect the presence of
 | 
						|
  any CTE other than 7bit, 8bit, or binary on a multipart.
 | 
						|
 | 
						|
- Issue #12383: Fix subprocess module with env={}: don't copy the environment
 | 
						|
  variables, start with an empty environment.
 | 
						|
 | 
						|
- Issue #11637: Fix support for importing packaging setup hooks from the
 | 
						|
  project directory.
 | 
						|
 | 
						|
- Issue #6771: Moved the curses.wrapper function from the single-function
 | 
						|
  wrapper module into __init__, eliminating the module.  Since __init__ was
 | 
						|
  already importing the function to curses.wrapper, there is no API change.
 | 
						|
 | 
						|
- Issue #11584: email.header.decode_header no longer fails if the header
 | 
						|
  passed to it is a Header object, and Header/make_header no longer fail
 | 
						|
  if given binary unknown-8bit input.
 | 
						|
 | 
						|
- Issue #11700: mailbox proxy object close methods can now be called multiple
 | 
						|
  times without error.
 | 
						|
 | 
						|
- Issue #11767: Correct file descriptor leak in mailbox's __getitem__ method.
 | 
						|
 | 
						|
- Issue #12133: AbstractHTTPHandler.do_open() of urllib.request closes the HTTP
 | 
						|
  connection if its getresponse() method fails with a socket error. Patch
 | 
						|
  written by Ezio Melotti.
 | 
						|
 | 
						|
- Issue #12240: Allow multiple setup hooks in packaging's setup.cfg files.
 | 
						|
  Original patch by Erik Bray.
 | 
						|
 | 
						|
- Issue #9284: Allow inspect.findsource() to find the source of doctest
 | 
						|
  functions.
 | 
						|
 | 
						|
- Issue #11595: Fix assorted bugs in packaging.util.cfg_to_args, a
 | 
						|
  compatibility helper for the distutils-packaging transition.  Original patch
 | 
						|
  by Erik Bray.
 | 
						|
 | 
						|
- Issue #12287: In ossaudiodev, check that the device isn't closed in several
 | 
						|
  methods.
 | 
						|
 | 
						|
- Issue #12009: Fixed regression in netrc file comment handling.
 | 
						|
 | 
						|
- Issue #12246: Warn and fail when trying to install a third-party project from
 | 
						|
  an uninstalled Python (built in a source checkout).  Original patch by
 | 
						|
  Tshepang Lekhonkhobe.
 | 
						|
 | 
						|
- Issue #10694: zipfile now ignores garbage at the end of a zipfile.
 | 
						|
 | 
						|
- Issue #12283: Fixed regression in smtplib quoting of leading dots in DATA.
 | 
						|
 | 
						|
- Issue #10424: Argparse now includes the names of the missing required
 | 
						|
  arguments in the missing arguments error message.
 | 
						|
 | 
						|
- Issue #12168: SysLogHandler now allows NUL termination to be controlled using
 | 
						|
  a new 'append_nul' attribute on the handler.
 | 
						|
 | 
						|
- Issue #11583: Speed up os.path.isdir on Windows by using GetFileAttributes
 | 
						|
  instead of os.stat.
 | 
						|
 | 
						|
- Issue #12021: Make mmap's read() method argument optional. Patch by Petri
 | 
						|
  Lehtinen.
 | 
						|
 | 
						|
- Issue #9205: concurrent.futures.ProcessPoolExecutor now detects killed
 | 
						|
  children and raises BrokenProcessPool in such a situation.  Previously it
 | 
						|
  would reliably freeze/deadlock.
 | 
						|
 | 
						|
- Issue #12040: Expose a new attribute ``sentinel`` on instances of
 | 
						|
  ``multiprocessing.Process``.  Also, fix Process.join() to not use polling
 | 
						|
  anymore, when given a timeout.
 | 
						|
 | 
						|
- Issue #11893: Remove obsolete internal wrapper class ``SSLFakeFile`` in the
 | 
						|
  smtplib module.  Patch by Catalin Iacob.
 | 
						|
 | 
						|
- Issue #12080: Fix a Decimal.power() case that took an unreasonably long time
 | 
						|
  to compute.
 | 
						|
 | 
						|
- Issue #12221: Remove __version__ attributes from pyexpat, pickle, tarfile,
 | 
						|
  pydoc, tkinter, and xml.parsers.expat. This were useless version constants
 | 
						|
  left over from the Mercurial transition
 | 
						|
 | 
						|
- Named tuples now work correctly with vars().
 | 
						|
 | 
						|
- Issue #12085: Fix an attribute error in subprocess.Popen destructor if the
 | 
						|
  constructor has failed, e.g. because of an undeclared keyword argument. Patch
 | 
						|
  written by Oleg Oshmyan.
 | 
						|
 | 
						|
- Issue #12028: Make threading._get_ident() public, rename it to
 | 
						|
  threading.get_ident() and document it. This function was already used using
 | 
						|
  _thread.get_ident().
 | 
						|
 | 
						|
- Issue #12171: IncrementalEncoder.reset() of CJK codecs (multibytecodec) calls
 | 
						|
  encreset() instead of decreset().
 | 
						|
 | 
						|
- Issue #12218: Removed wsgiref.egg-info.
 | 
						|
 | 
						|
- Issue #12196: Add pipe2() to the os module.
 | 
						|
 | 
						|
- Issue #985064: Make plistlib more resilient to faulty input plists.
 | 
						|
  Patch by Mher Movsisyan.
 | 
						|
 | 
						|
- Issue #1625: BZ2File and bz2.decompress() now support multi-stream files.
 | 
						|
  Initial patch by Nir Aides.
 | 
						|
 | 
						|
- Issue #12175: BufferedReader.read(-1) now calls raw.readall() if available.
 | 
						|
 | 
						|
- Issue #12175: FileIO.readall() now only reads the file position and size
 | 
						|
  once.
 | 
						|
 | 
						|
- Issue #12175: RawIOBase.readall() now returns None if read() returns None.
 | 
						|
 | 
						|
- Issue #12175: FileIO.readall() now raises a ValueError instead of an IOError
 | 
						|
  if the file is closed.
 | 
						|
 | 
						|
- Issue #11109: New service_action method for BaseServer, used by ForkingMixin
 | 
						|
  class for cleanup. Initial Patch by Justin Warkentin.
 | 
						|
 | 
						|
- Issue #12045: Avoid duplicate execution of command in
 | 
						|
  ctypes.util._get_soname().  Patch by Sijin Joseph.
 | 
						|
 | 
						|
- Issue #10818: Remove the Tk GUI and the serve() function of the pydoc module,
 | 
						|
  pydoc -g has been deprecated in Python 3.2 and it has a new enhanced web
 | 
						|
  server.
 | 
						|
 | 
						|
- Issue #1441530: In imaplib, read the data in one chunk to speed up large
 | 
						|
  reads and simplify code.
 | 
						|
 | 
						|
- Issue #12070: Fix the Makefile parser of the sysconfig module to handle
 | 
						|
  correctly references to "bogus variable" (e.g. "prefix=$/opt/python").
 | 
						|
 | 
						|
- Issue #12100: Don't reset incremental encoders of CJK codecs at each call to
 | 
						|
  their encode() method anymore, but continue to call the reset() method if the
 | 
						|
  final argument is True.
 | 
						|
 | 
						|
- Issue #12049: Add RAND_bytes() and RAND_pseudo_bytes() functions to the ssl
 | 
						|
  module.
 | 
						|
 | 
						|
- Issue #6501: os.device_encoding() returns None on Windows if the application
 | 
						|
  has no console.
 | 
						|
 | 
						|
- Issue #12105: Add O_CLOEXEC to the os module.
 | 
						|
 | 
						|
- Issue #12079: Decimal('Infinity').fma(Decimal('0'), (3.91224318126786e+19+0j))
 | 
						|
  now raises TypeError (reflecting the invalid type of the 3rd argument) rather
 | 
						|
  than Decimal.InvalidOperation.
 | 
						|
 | 
						|
- Issue #12124: zipimport doesn't keep a reference to zlib.decompress() anymore
 | 
						|
  to be able to unload the module.
 | 
						|
 | 
						|
- Add the packaging module, an improved fork of distutils (also known as
 | 
						|
  distutils2).
 | 
						|
 | 
						|
- Issue #12065: connect_ex() on an SSL socket now returns the original errno
 | 
						|
  when the socket's timeout expires (it used to return None).
 | 
						|
 | 
						|
- Issue #8809: The SMTP_SSL constructor and SMTP.starttls() now support
 | 
						|
  passing a ``context`` argument pointing to an ssl.SSLContext instance.
 | 
						|
  Patch by Kasun Herath.
 | 
						|
 | 
						|
- Issue #9516: Issue #9516: avoid errors in sysconfig when MACOSX_DEPLOYMENT_TARGET
 | 
						|
  is set in shell.
 | 
						|
 | 
						|
- Issue #8650: Make zlib module 64-bit clean. compress(), decompress() and
 | 
						|
  their incremental counterparts now raise OverflowError if given an input
 | 
						|
  larger than 4GB, instead of silently truncating the input and returning
 | 
						|
  an incorrect result.
 | 
						|
 | 
						|
- Issue #12050: zlib.decompressobj().decompress() now clears the unconsumed_tail
 | 
						|
  attribute when called without a max_length argument.
 | 
						|
 | 
						|
- Issue #12062: Fix a flushing bug when doing a certain type of I/O sequence
 | 
						|
  on a file opened in read+write mode (namely: reading, seeking a bit forward,
 | 
						|
  writing, then seeking before the previous write but still within buffered
 | 
						|
  data, and writing again).
 | 
						|
 | 
						|
- Issue #9971: Write an optimized implementation of BufferedReader.readinto().
 | 
						|
  Patch by John O'Connor.
 | 
						|
 | 
						|
- Issue #11799: urllib.request Authentication Handlers will raise a ValueError
 | 
						|
  when presented with an unsupported Authentication Scheme. Patch contributed
 | 
						|
  by Yuval Greenfield.
 | 
						|
 | 
						|
- Issue #10419, #6011: build_scripts command of distutils handles correctly
 | 
						|
  non-ASCII path (path to the Python executable). Open and write the script in
 | 
						|
  binary mode, but ensure that the shebang is decodable from UTF-8 and from the
 | 
						|
  encoding of the script.
 | 
						|
 | 
						|
- Issue #8498: In socket.accept(), allow to specify 0 as a backlog value in
 | 
						|
  order to accept exactly one connection.  Patch by Daniel Evers.
 | 
						|
 | 
						|
- Issue #12011: signal.signal() and signal.siginterrupt() raise an OSError,
 | 
						|
  instead of a RuntimeError: OSError has an errno attribute.
 | 
						|
 | 
						|
- Issue #3709: add a flush_headers method to BaseHTTPRequestHandler, which
 | 
						|
  manages the sending of headers to output stream and flushing the internal
 | 
						|
  headers buffer. Patch contribution by Andrew Schaaf
 | 
						|
 | 
						|
- Issue #11743: Rewrite multiprocessing connection classes in pure Python.
 | 
						|
 | 
						|
- Issue #11164: Stop trying to use _xmlplus in the xml module.
 | 
						|
 | 
						|
- Issue #11888: Add log2 function to math module. Patch written by Mark
 | 
						|
  Dickinson.
 | 
						|
 | 
						|
- Issue #12012: ssl.PROTOCOL_SSLv2 becomes optional.
 | 
						|
 | 
						|
- Issue #8407: The signal handler writes the signal number as a single byte
 | 
						|
  instead of a nul byte into the wakeup file descriptor. So it is possible to
 | 
						|
  wait more than one signal and know which signals were raised.
 | 
						|
 | 
						|
- Issue #8407: Add pthread_kill(), sigpending() and sigwait() functions to the
 | 
						|
  signal module.
 | 
						|
 | 
						|
- Issue #11927: SMTP_SSL now uses port 465 by default as documented.  Patch
 | 
						|
  by Kasun Herath.
 | 
						|
 | 
						|
- Issue #12002: ftplib's abort() method raises TypeError.
 | 
						|
 | 
						|
- Issue #11916: Add a number of MacOSX specific definitions to the errno module.
 | 
						|
  Patch by Pierre Carrier.
 | 
						|
 | 
						|
- Issue #11999: fixed sporadic sync failure mailbox.Maildir due to its trying to
 | 
						|
  detect mtime changes by comparing to the system clock instead of to the
 | 
						|
  previous value of the mtime.
 | 
						|
 | 
						|
- Issue #11072: added MLSD command (RFC-3659) support to ftplib.
 | 
						|
 | 
						|
- Issue #8808: The IMAP4_SSL constructor now allows passing an SSLContext
 | 
						|
  parameter to control parameters of the secure channel.  Patch by Sijin
 | 
						|
  Joseph.
 | 
						|
 | 
						|
- ntpath.samefile failed to notice that "a.txt" and "A.TXT" refer to the same
 | 
						|
  file on Windows XP. As noticed in issue #10684.
 | 
						|
 | 
						|
- Issue #12000: When a SSL certificate has a subjectAltName without any
 | 
						|
  dNSName entry, ssl.match_hostname() should use the subject's commonName.
 | 
						|
  Patch by Nicolas Bareil.
 | 
						|
 | 
						|
- Issue #10775: assertRaises, assertRaisesRegex, assertWarns, and
 | 
						|
  assertWarnsRegex now accept a keyword argument 'msg' when used as context
 | 
						|
  managers.  Initial patch by Winston Ewert.
 | 
						|
 | 
						|
- Issue #10684: shutil.move used to delete a folder on case insensitive
 | 
						|
  filesystems when the source and destination name where the same except
 | 
						|
  for the case.
 | 
						|
 | 
						|
- Issue #11647: objects created using contextlib.contextmanager now support
 | 
						|
  more than one call to the function when used as a decorator. Initial patch
 | 
						|
  by Ysj Ray.
 | 
						|
 | 
						|
- Issue #11930: Removed deprecated time.accept2dyear variable.
 | 
						|
  Removed year >= 1000 restriction from datetime.strftime.
 | 
						|
 | 
						|
- logging: don't define QueueListener if Python has no thread support.
 | 
						|
 | 
						|
- functools.cmp_to_key() now works with collections.Hashable().
 | 
						|
 | 
						|
- Issue #11277: mmap.mmap() calls fcntl(fd, F_FULLFSYNC) on Mac OS X to get
 | 
						|
  around a mmap bug with sparse files. Patch written by Steffen Daode Nurpmeso.
 | 
						|
 | 
						|
- Issue #8407: Add signal.pthread_sigmask() function to fetch and/or change the
 | 
						|
  signal mask of the calling thread.
 | 
						|
 | 
						|
- Issue #11858: configparser.ExtendedInterpolation expected lower-case section
 | 
						|
  names.
 | 
						|
 | 
						|
- Issue #11324: ConfigParser(interpolation=None) now works correctly.
 | 
						|
 | 
						|
- Issue #11811: ssl.get_server_certificate() is now IPv6-compatible.  Patch
 | 
						|
  by Charles-François Natali.
 | 
						|
 | 
						|
- Issue #11763: don't use difflib in TestCase.assertMultiLineEqual if the
 | 
						|
  strings are too long.
 | 
						|
 | 
						|
- Issue #11236: getpass.getpass responds to ctrl-c or ctrl-z on terminal.
 | 
						|
 | 
						|
- Issue #11856: Speed up parsing of JSON numbers.
 | 
						|
 | 
						|
- Issue #11005: threading.RLock()._release_save() raises a RuntimeError if the
 | 
						|
  lock was not acquired.
 | 
						|
 | 
						|
- Issue #11258: Speed up ctypes.util.find_library() under Linux by a factor
 | 
						|
  of 5 to 10.  Initial patch by Jonas H.
 | 
						|
 | 
						|
- Issue #11382: Trivial system calls, such as dup() or pipe(), needn't
 | 
						|
  release the GIL.  Patch by Charles-François Natali.
 | 
						|
 | 
						|
- Issue #11223: Add threading._info() function providing informations about
 | 
						|
  the thread implementation.
 | 
						|
 | 
						|
- Issue #11731: simplify/enhance email parser/generator API by introducing
 | 
						|
  policy objects.
 | 
						|
 | 
						|
- Issue #11768: The signal handler of the signal module only calls
 | 
						|
  Py_AddPendingCall() for the first signal to fix a deadlock on reentrant or
 | 
						|
  parallel calls. PyErr_SetInterrupt() writes also into the wake up file.
 | 
						|
 | 
						|
- Issue #11492: fix several issues with header folding in the email package.
 | 
						|
 | 
						|
- Issue #11852: Add missing imports and update tests.
 | 
						|
 | 
						|
- Issue #11875: collections.OrderedDict's __reduce__ was temporarily
 | 
						|
  mutating the object instead of just working on a copy.
 | 
						|
 | 
						|
- Issue #11467: Fix urlparse behavior when handling urls which contains scheme
 | 
						|
  specific part only digits. Patch by Santoso Wijaya.
 | 
						|
 | 
						|
- collections.Counter().copy() now works correctly for subclasses.
 | 
						|
 | 
						|
- Issue #11474: Fix the bug with url2pathname() handling of '/C|/' on Windows.
 | 
						|
  Patch by Santoso Wijaya.
 | 
						|
 | 
						|
- Issue #11684: complete email.parser bytes API by adding BytesHeaderParser.
 | 
						|
 | 
						|
- The bz2 module now handles 4GiB+ input buffers correctly.
 | 
						|
 | 
						|
- Issue #9233: Fix json.loads('{}') to return a dict (instead of a list), when
 | 
						|
  _json is not available.
 | 
						|
 | 
						|
- Issue #11830: Remove unnecessary introspection code in the decimal module.
 | 
						|
 | 
						|
- Issue #11703: urllib2.geturl() does not return correct url when the original
 | 
						|
  url contains #fragment.
 | 
						|
 | 
						|
- Issue #10019: Fixed regression in json module where an indent of 0 stopped
 | 
						|
  adding newlines and acted instead like 'None'.
 | 
						|
 | 
						|
- Issue #11186: pydoc ignores a module if its name contains a surrogate
 | 
						|
  character in the index of modules.
 | 
						|
 | 
						|
- Issue #11815: Use a light-weight SimpleQueue for the result queue in
 | 
						|
  concurrent.futures.ProcessPoolExecutor.
 | 
						|
 | 
						|
- Issue #5162: Treat services like frozen executables to allow child spawning
 | 
						|
  from multiprocessing.forking on Windows.
 | 
						|
 | 
						|
- logging.basicConfig now supports an optional 'handlers' argument taking an
 | 
						|
  iterable of handlers to be added to the root logger. Additional parameter
 | 
						|
  checks were also added to basicConfig.
 | 
						|
 | 
						|
- Issue #11814: Fix likely typo in multiprocessing.Pool._terminate().
 | 
						|
 | 
						|
- Issue #11747: Fix range formatting in difflib.context_diff() and
 | 
						|
  difflib.unified_diff().
 | 
						|
 | 
						|
- Issue #8428: Fix a race condition in multiprocessing.Pool when terminating
 | 
						|
  worker processes: new processes would be spawned while the pool is being
 | 
						|
  shut down.  Patch by Charles-François Natali.
 | 
						|
 | 
						|
- Issue #2650: re.escape() no longer escapes the '_'.
 | 
						|
 | 
						|
- Issue #11757: select.select() now raises ValueError when a negative timeout
 | 
						|
  is passed (previously, a select.error with EINVAL would be raised).  Patch
 | 
						|
  by Charles-François Natali.
 | 
						|
 | 
						|
- Issue #7311: fix html.parser to accept non-ASCII attribute values.
 | 
						|
 | 
						|
- Issue #11605: email.parser.BytesFeedParser was incorrectly converting
 | 
						|
  multipart subparts with an 8-bit CTE into unicode instead of preserving the
 | 
						|
  bytes.
 | 
						|
 | 
						|
- Issue #1690608: email.util.formataddr is now RFC 2047 aware: it now has a
 | 
						|
  charset parameter that defaults to utf-8 and is used as the charset for RFC
 | 
						|
  2047 encoding when the realname contains non-ASCII characters.
 | 
						|
 | 
						|
- Issue #10963: Ensure that subprocess.communicate() never raises EPIPE.
 | 
						|
 | 
						|
- Issue #10791: Implement missing method GzipFile.read1(), allowing GzipFile
 | 
						|
  to be wrapped in a TextIOWrapper.  Patch by Nadeem Vawda.
 | 
						|
 | 
						|
- Issue #11707: Added a fast C version of functools.cmp_to_key().
 | 
						|
  Patch by Filip Gruszczyński.
 | 
						|
 | 
						|
- Issue #11688: Add sqlite3.Connection.set_trace_callback().  Patch by
 | 
						|
  Torsten Landschoff.
 | 
						|
 | 
						|
- Issue #11746: Fix SSLContext.load_cert_chain() to accept elliptic curve
 | 
						|
  private keys.
 | 
						|
 | 
						|
- Issue #5863: Rewrite BZ2File in pure Python, and allow it to accept
 | 
						|
  file-like objects using a new ``fileobj`` constructor argument.  Patch by
 | 
						|
  Nadeem Vawda.
 | 
						|
 | 
						|
- unittest.TestCase.assertSameElements has been removed.
 | 
						|
 | 
						|
- sys.getfilesystemencoding() raises a RuntimeError if initfsencoding() was not
 | 
						|
  called yet: detect bootstrap (startup) issues earlier.
 | 
						|
 | 
						|
- Issue #11393: Add the new faulthandler module.
 | 
						|
 | 
						|
- Issue #11618: Fix the timeout logic in threading.Lock.acquire() under Windows.
 | 
						|
 | 
						|
- Removed the 'strict' argument to email.parser.Parser, which has been
 | 
						|
  deprecated since Python 2.4.
 | 
						|
 | 
						|
- Issue #11256: Fix inspect.getcallargs on functions that take only keyword
 | 
						|
  arguments.
 | 
						|
 | 
						|
- Issue #11696: Fix ID generation in msilib.
 | 
						|
 | 
						|
- itertools.accumulate now supports an optional *func* argument for
 | 
						|
  a user-supplied binary function.
 | 
						|
 | 
						|
- Issue #11692: Remove unnecessary demo functions in subprocess module.
 | 
						|
 | 
						|
- Issue #9696: Fix exception incorrectly raised by xdrlib.Packer.pack_int when
 | 
						|
  trying to pack a negative (in-range) integer.
 | 
						|
 | 
						|
- Issue #11675: multiprocessing.[Raw]Array objects created from an integer size
 | 
						|
  are now zeroed on creation.  This matches the behaviour specified by the
 | 
						|
  documentation.
 | 
						|
 | 
						|
- Issue #7639: Fix short file name generation in bdist_msi
 | 
						|
 | 
						|
- Issue #11635: Don't use polling in worker threads and processes launched by
 | 
						|
  concurrent.futures.
 | 
						|
 | 
						|
- Issue #5845: Automatically read readline configuration to enable completion
 | 
						|
  in interactive mode.
 | 
						|
 | 
						|
- Issue #6811: Allow importlib to change a code object's co_filename attribute
 | 
						|
  to match the path to where the source code currently is, not where the code
 | 
						|
  object originally came from.
 | 
						|
 | 
						|
- Issue #8754: Have importlib use the repr of a module name in error messages.
 | 
						|
 | 
						|
- Issue #11591: Prevent "import site" from modifying sys.path when python
 | 
						|
  was started with -S.
 | 
						|
 | 
						|
- collections.namedtuple() now adds a _source attribute to the generated
 | 
						|
  class.  This make the source more accessible than the outdated
 | 
						|
  "verbose" option which prints to stdout but doesn't make the source
 | 
						|
  string available.
 | 
						|
 | 
						|
- Issue #11371: Mark getopt error messages as localizable.  Patch by Filip
 | 
						|
  Gruszczyński.
 | 
						|
 | 
						|
- Issue #11333: Add __slots__ to collections ABCs.
 | 
						|
 | 
						|
- Issue #11628: cmp_to_key generated class should use __slots__.
 | 
						|
 | 
						|
- Issue #11666: let help() display named tuple attributes and methods
 | 
						|
  that start with a leading underscore.
 | 
						|
 | 
						|
- Issue #11662: Make urllib and urllib2 ignore redirections if the
 | 
						|
  scheme is not HTTP, HTTPS or FTP (CVE-2011-1521).
 | 
						|
 | 
						|
- Issue #5537: Fix time2isoz() and time2netscape() functions of
 | 
						|
  httplib.cookiejar for expiration year greater than 2038 on 32-bit systems.
 | 
						|
 | 
						|
- Issue #4391: Use proper gettext plural forms in optparse.
 | 
						|
 | 
						|
- Issue #11127: Raise a TypeError when trying to pickle a socket object.
 | 
						|
 | 
						|
- Issue #11563: ``Connection: close`` header is sent by requests using URLOpener
 | 
						|
  class which helps in closing of sockets after connection is over. Patch
 | 
						|
  contributions by Jeff McNeil and Nadeem Vawda.
 | 
						|
 | 
						|
- Issue #11459: A ``bufsize`` value of 0 in subprocess.Popen() really creates
 | 
						|
  unbuffered pipes, such that select() works properly on them.
 | 
						|
 | 
						|
- Issue #5421: Fix misleading error message when one of socket.sendto()'s
 | 
						|
  arguments has the wrong type.  Patch by Nikita Vetoshkin.
 | 
						|
 | 
						|
- Issue #10812: Add some extra posix functions to the os module.
 | 
						|
 | 
						|
- Issue #10979: unittest stdout buffering now works with class and module
 | 
						|
  setup and teardown.
 | 
						|
 | 
						|
- Issue #11243: fix the parameter querying methods of Message to work if
 | 
						|
  the headers contain un-encoded non-ASCII data.
 | 
						|
 | 
						|
- Issue #11401: fix handling of headers with no value; this fixes a regression
 | 
						|
  relative to Python2 and the result is now the same as it was in Python2.
 | 
						|
 | 
						|
- Issue #9298: base64 bodies weren't being folded to line lengths less than 78,
 | 
						|
  which was a regression relative to Python2.  Unlike Python2, the last line
 | 
						|
  of the folded body now ends with a carriage return.
 | 
						|
 | 
						|
- Issue #11560: shutil.unpack_archive now correctly handles the format
 | 
						|
  parameter. Patch by Evan Dandrea.
 | 
						|
 | 
						|
- Issue #5870: Add `subprocess.DEVNULL` constant.
 | 
						|
 | 
						|
- Issue #11133: fix two cases where inspect.getattr_static can trigger code
 | 
						|
  execution. Patch by Andreas Stührk.
 | 
						|
 | 
						|
- Issue #11569: use absolute path to the sysctl command in multiprocessing to
 | 
						|
  ensure that it will be found regardless of the shell PATH. This ensures
 | 
						|
  that multiprocessing.cpu_count works on default installs of MacOSX.
 | 
						|
 | 
						|
- Issue #11501: disutils.archive_utils.make_zipfile no longer fails if zlib is
 | 
						|
  not installed. Instead, the zipfile.ZIP_STORED compression is used to create
 | 
						|
  the ZipFile. Patch by Natalia B. Bidart.
 | 
						|
 | 
						|
- Issue #11289: `smtp.SMTP` class is now a context manager so it can be used
 | 
						|
  in a `with` statement.  Contributed by Giampaolo Rodola.
 | 
						|
 | 
						|
- Issue #11554: Fixed support for Japanese codecs; previously the body output
 | 
						|
  encoding was not done if euc-jp or shift-jis was specified as the charset.
 | 
						|
 | 
						|
- Issue #11407: `TestCase.run` returns the result object used or created.
 | 
						|
  Contributed by Janathan Hartley.
 | 
						|
 | 
						|
- Issue #11500: Fixed a bug in the OS X proxy bypass code for fully qualified
 | 
						|
  IP addresses in the proxy exception list.
 | 
						|
 | 
						|
- Issue #11491: dbm.error is no longer raised when dbm.open is called with
 | 
						|
  the "n" as the flag argument and the file exists. The behavior matches
 | 
						|
  the documentation and general logic.
 | 
						|
 | 
						|
- Issue #1162477: Postel Principle adjustment to email date parsing: handle the
 | 
						|
  fact that some non-compliant MUAs use '.' instead of ':' in time specs.
 | 
						|
 | 
						|
- Issue #11131: Fix sign of zero in decimal.Decimal plus and minus
 | 
						|
  operations when the rounding mode is ROUND_FLOOR.
 | 
						|
 | 
						|
- Issue #9935: Speed up pickling of instances of user-defined classes.
 | 
						|
 | 
						|
- Issue #5622: Fix curses.wrapper to raise correct exception if curses
 | 
						|
  initialization fails.
 | 
						|
 | 
						|
- Issue #11408: In threading.Lock.acquire(), only call gettimeofday() when
 | 
						|
  really necessary.  Patch by Charles-François Natali.
 | 
						|
 | 
						|
- Issue #11391: Writing to a mmap object created with
 | 
						|
  ``mmap.PROT_READ|mmap.PROT_EXEC`` would segfault instead of raising a
 | 
						|
  TypeError.  Patch by Charles-François Natali.
 | 
						|
 | 
						|
- Issue #9795: add context manager protocol support for nntplib.NNTP class.
 | 
						|
 | 
						|
- Issue #11306: mailbox in certain cases adapts to an inability to open
 | 
						|
  certain files in read-write mode.  Previously it detected this by
 | 
						|
  checking for EACCES, now it also checks for EROFS.
 | 
						|
 | 
						|
- Issue #11265: asyncore now correctly handles EPIPE, EBADF and EAGAIN errors
 | 
						|
  on accept(), send() and recv().
 | 
						|
 | 
						|
- Issue #11377: Deprecate platform.popen() and reimplement it with os.popen().
 | 
						|
 | 
						|
- Issue #8513: On UNIX, subprocess supports bytes command string.
 | 
						|
 | 
						|
- Issue #10866: Add socket.sethostname().  Initial patch by Ross Lagerwall.
 | 
						|
 | 
						|
- Issue #11140: Lock.release() now raises a RuntimeError when attempting
 | 
						|
  to release an unacquired lock, as claimed in the threading documentation.
 | 
						|
  The _thread.error exception is now an alias of RuntimeError.  Patch by
 | 
						|
  Filip Gruszczyński.  Patch for _dummy_thread by Aymeric Augustin.
 | 
						|
 | 
						|
- Issue #8594: ftplib now provides a source_address parameter to specify which
 | 
						|
  (address, port) to bind to before connecting.
 | 
						|
 | 
						|
- Issue #11326: Add the missing connect_ex() implementation for SSL sockets,
 | 
						|
  and make it work for non-blocking connects.
 | 
						|
 | 
						|
- Issue #11297: Add collections.ChainMap().
 | 
						|
 | 
						|
- Issue #10755: Add the posix.flistdir() function.  Patch by Ross Lagerwall.
 | 
						|
 | 
						|
- Issue #4761: Add the ``*at()`` family of functions (openat(), etc.) to the
 | 
						|
  posix module.  Patch by Ross Lagerwall.
 | 
						|
 | 
						|
- Issue #7322: Trying to read from a socket's file-like object after a timeout
 | 
						|
  occurred now raises an error instead of silently losing data.
 | 
						|
 | 
						|
- Issue #11291: poplib.POP no longer suppresses errors on quit().
 | 
						|
 | 
						|
- Issue #11177: asyncore's create_socket() arguments can now be omitted.
 | 
						|
 | 
						|
- Issue #6064: Add a ``daemon`` keyword argument to the threading.Thread
 | 
						|
  and multiprocessing.Process constructors in order to override the
 | 
						|
  default behaviour of inheriting the daemonic property from the current
 | 
						|
  thread/process.
 | 
						|
 | 
						|
- Issue #10956: Buffered I/O classes retry reading or writing after a signal
 | 
						|
  has arrived and the handler returned successfully.
 | 
						|
 | 
						|
- Issue #10784: New os.getpriority() and os.setpriority() functions.
 | 
						|
 | 
						|
- Issue #11114: Fix catastrophic performance of tell() on text files (up
 | 
						|
  to 1000x faster in some cases).  It is still one to two order of magnitudes
 | 
						|
  slower than binary tell().
 | 
						|
 | 
						|
- Issue #10882: Add os.sendfile function.
 | 
						|
 | 
						|
- Issue #10868: Allow usage of the register method of an ABC as a class
 | 
						|
  decorator.
 | 
						|
 | 
						|
- Issue #11224: Fixed a regression in tarfile that affected the file-like
 | 
						|
  objects returned by TarFile.extractfile() regarding performance, memory
 | 
						|
  consumption and failures with the stream interface.
 | 
						|
 | 
						|
- Issue #10924: Adding salt and Modular Crypt Format to crypt library.
 | 
						|
  Moved old C wrapper to _crypt, and added a Python wrapper with
 | 
						|
  enhanced salt generation and simpler API for password generation.
 | 
						|
 | 
						|
- Issue #11074: Make 'tokenize' so it can be reloaded.
 | 
						|
 | 
						|
- Issue #11085: Moved collections abstract base classes into a separate
 | 
						|
  module called collections.abc, following the pattern used by importlib.abc.
 | 
						|
  For backwards compatibility, the names are imported into the collections
 | 
						|
  module.
 | 
						|
 | 
						|
- Issue #4681: Allow mmap() to work on file sizes and offsets larger than
 | 
						|
  4GB, even on 32-bit builds.  Initial patch by Ross Lagerwall, adapted for
 | 
						|
  32-bit Windows.
 | 
						|
 | 
						|
- Issue #11169: compileall module uses repr() to format filenames and paths to
 | 
						|
  escape surrogate characters and show spaces.
 | 
						|
 | 
						|
- Issue #11089: Fix performance issue limiting the use of ConfigParser()
 | 
						|
  with large config files.
 | 
						|
 | 
						|
- Issue #10276: Fix the results of zlib.crc32() and zlib.adler32() on buffers
 | 
						|
  larger than 4GB.  Patch by Nadeem Vawda.
 | 
						|
 | 
						|
- Issue #11388: Added a clear() method to MutableSequence
 | 
						|
 | 
						|
- Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names
 | 
						|
  for the names of optional and positional arguments in help messages.
 | 
						|
 | 
						|
- Issue #9348: Raise an early error if argparse nargs and metavar don't match.
 | 
						|
 | 
						|
- Issue #9026: Fix order of argparse sub-commands in help messages.
 | 
						|
 | 
						|
- Issue #9347: Fix formatting for tuples in argparse type= error messages.
 | 
						|
 | 
						|
- Issue #12191: Added shutil.chown() to change user and/or group owner of a
 | 
						|
  given path also specifying their names.
 | 
						|
 | 
						|
- Issue #13988: The _elementtree accelerator is used whenever available.
 | 
						|
  Now xml.etree.cElementTree becomes a deprecated alias to ElementTree.
 | 
						|
 | 
						|
Build
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #6807: Run msisupport.mak earlier.
 | 
						|
 | 
						|
- Issue #10580: Minor grammar change in Windows installer.
 | 
						|
 | 
						|
- Issue #13326: Clean __pycache__ directories correctly on OpenBSD.
 | 
						|
 | 
						|
- PEP 393: the configure option --with-wide-unicode is removed.
 | 
						|
 | 
						|
- Issue #12852: Set _XOPEN_SOURCE to 700, instead of 600, to get POSIX 2008
 | 
						|
  functions on OpenBSD (e.g. fdopendir).
 | 
						|
 | 
						|
- Issue #11863: Remove support for legacy systems deprecated in Python 3.2
 | 
						|
  (following PEP 11).  These systems are systems using Mach C Threads,
 | 
						|
  SunOS lightweight processes, GNU pth threads and IRIX threads.
 | 
						|
 | 
						|
- Issue #8746: Correct faulty configure checks so that os.chflags() and
 | 
						|
  os.lchflags() are once again built on systems that support these
 | 
						|
  functions (BSD and OS X).  Also add new stat file flags for OS X
 | 
						|
  (UF_HIDDEN and UF_COMPRESSED).
 | 
						|
 | 
						|
- Issue #10645: Installing Python no longer creates a
 | 
						|
  Python-X.Y.Z-pyX.Y.egg-info file in the lib-dynload directory.
 | 
						|
 | 
						|
- Do not accidentally include the directory containing sqlite.h twice when
 | 
						|
  building sqlite3.
 | 
						|
 | 
						|
- Issue #11217: For 64-bit/32-bit Mac OS X universal framework builds,
 | 
						|
  ensure "make install" creates symlinks in --prefix bin for the "-32"
 | 
						|
  files in the framework bin directory like the installer does.
 | 
						|
 | 
						|
- Issue #11347: Use --no-as-needed when linking libpython3.so.
 | 
						|
 | 
						|
- Issue #11411: Fix 'make DESTDIR=' with a relative destination.
 | 
						|
 | 
						|
- Issue #11268: Prevent Mac OS X Installer failure if Documentation
 | 
						|
  package had previously been installed.
 | 
						|
 | 
						|
- Issue #11495: OSF support is eliminated. It was deprecated in Python 3.2.
 | 
						|
 | 
						|
IDLE
 | 
						|
----
 | 
						|
 | 
						|
- Issue #14409: IDLE now properly executes commands in the Shell window
 | 
						|
  when it cannot read the normal config files on startup and
 | 
						|
  has to use the built-in default key bindings.
 | 
						|
  There was previously a bug in one of the defaults.
 | 
						|
 | 
						|
- IDLE can be launched as python -m idlelib
 | 
						|
 | 
						|
- Issue #3573: IDLE hangs when passing invalid command line args
 | 
						|
  (directory(ies) instead of file(s)) (Patch by Guilherme Polo)
 | 
						|
 | 
						|
- Issue #14200: IDLE shell crash on printing non-BMP unicode character.
 | 
						|
 | 
						|
- Issue #5219: Prevent event handler cascade in IDLE.
 | 
						|
 | 
						|
- Issue #964437: Make IDLE help window non-modal.
 | 
						|
  Patch by Guilherme Polo and Roger Serwy.
 | 
						|
 | 
						|
- Issue #13933: IDLE auto-complete did not work with some imported
 | 
						|
  module, like hashlib.  (Patch by Roger Serwy)
 | 
						|
 | 
						|
- Issue #13506: Add '' to path for IDLE Shell when started and restarted with Restart Shell.
 | 
						|
  Original patches by Marco Scataglini and Roger Serwy.
 | 
						|
 | 
						|
- Issue #4625: If IDLE cannot write to its recent file or breakpoint files,
 | 
						|
  display a message popup and continue rather than crash.  Original patch by
 | 
						|
  Roger Serwy.
 | 
						|
 | 
						|
- Issue #8641: Update IDLE 3 syntax coloring to recognize b".." and not u"..".
 | 
						|
  Patch by Tal Einat.
 | 
						|
 | 
						|
- Issue #13296: Fix IDLE to clear compile __future__ flags on shell restart.
 | 
						|
  (Patch by Roger Serwy)
 | 
						|
 | 
						|
- Issue #9871: Prevent IDLE 3 crash when given byte stings
 | 
						|
  with invalid hex escape sequences, like b'\x0'.
 | 
						|
  (Original patch by Claudiu Popa.)
 | 
						|
 | 
						|
- Issue #12636: IDLE reads the coding cookie when executing a Python script.
 | 
						|
 | 
						|
- Issue #12540: Prevent zombie IDLE processes on Windows due to changes
 | 
						|
  in os.kill().
 | 
						|
 | 
						|
- Issue #12590: IDLE editor window now always displays the first line
 | 
						|
  when opening a long file.  With Tk 8.5, the first line was hidden.
 | 
						|
 | 
						|
- Issue #11088: don't crash when using F5 to run a script in IDLE on MacOSX
 | 
						|
  with Tk 8.5.
 | 
						|
 | 
						|
- Issue #1028: Tk returns invalid Unicode null in %A: UnicodeDecodeError.
 | 
						|
  With Tk < 8.5 _tkinter.c:PythonCmd() raised UnicodeDecodeError, caused
 | 
						|
  IDLE to exit.  Converted to valid Unicode null in PythonCmd().
 | 
						|
 | 
						|
- Issue #11718: IDLE's open module dialog couldn't find the __init__.py
 | 
						|
  file in a package.
 | 
						|
 | 
						|
Tools/Demos
 | 
						|
-----------
 | 
						|
 | 
						|
- Issue #14053: patchcheck.py ("make patchcheck") now works with MQ patches.
 | 
						|
  Patch by Francisco Martín Brugué.
 | 
						|
 | 
						|
- Issue #13930: 2to3 is now able to write its converted output files to another
 | 
						|
  directory tree as well as copying unchanged files and altering the file
 | 
						|
  suffix.  See its new -o, -W and --add-suffix options.  This makes it more
 | 
						|
  useful in many automated code translation workflows.
 | 
						|
 | 
						|
- Issue #13628: python-gdb.py is now able to retrieve more frames in the Python
 | 
						|
  traceback if Python is optimized.
 | 
						|
 | 
						|
- Issue #11996: libpython (gdb), replace "py-bt" command by "py-bt-full" and
 | 
						|
  add a smarter "py-bt" command printing a classic Python traceback.
 | 
						|
 | 
						|
- Issue #11179: Make ccbench work under Python 3.1 and 2.7 again.
 | 
						|
 | 
						|
- Issue #10639: reindent.py no longer converts newlines and will raise
 | 
						|
  an error if attempting to convert a file with mixed newlines.
 | 
						|
  "--newline" option added to specify new line character.
 | 
						|
 | 
						|
Extension Modules
 | 
						|
-----------------
 | 
						|
 | 
						|
- Issue #16847: Fixed improper use of _PyUnicode_CheckConsistency() in
 | 
						|
  non-pydebug builds. Several extension modules now compile cleanly when
 | 
						|
  assert()s are enabled in standard builds (-DDEBUG flag).
 | 
						|
 | 
						|
- Issue #13840: The error message produced by ctypes.create_string_buffer
 | 
						|
  when given a Unicode string has been fixed.
 | 
						|
 | 
						|
- Issue #9975: socket: Fix incorrect use of flowinfo and scope_id. Patch by
 | 
						|
  Vilmos Nebehaj.
 | 
						|
 | 
						|
- Issue #7777: socket: Add Reliable Datagram Sockets (PF_RDS) support.
 | 
						|
 | 
						|
- Issue #13159: FileIO and BZ2Compressor/BZ2Decompressor now use a linear-time
 | 
						|
  buffer growth strategy instead of a quadratic-time one.
 | 
						|
 | 
						|
- Issue #10141: socket: Add SocketCAN (PF_CAN) support. Initial patch by
 | 
						|
  Matthias Fuchs, updated by Tiago Gonçalves.
 | 
						|
 | 
						|
- Issue #13070: Fix a crash when a TextIOWrapper caught in a reference cycle
 | 
						|
  would be finalized after the reference to its underlying BufferedRWPair's
 | 
						|
  writer got cleared by the GC.
 | 
						|
 | 
						|
- Issue #12881: ctypes: Fix segfault with large structure field names.
 | 
						|
 | 
						|
- Issue #13058: ossaudiodev: fix a file descriptor leak on error. Patch by
 | 
						|
  Thomas Jarosch.
 | 
						|
 | 
						|
- Issue #13013: ctypes: Fix a reference leak in PyCArrayType_from_ctype.
 | 
						|
  Thanks to Suman Saha for finding the bug and providing a patch.
 | 
						|
 | 
						|
- Issue #13022: Fix: _multiprocessing.recvfd() doesn't check that
 | 
						|
  file descriptor was actually received.
 | 
						|
 | 
						|
- Issue #1172711: Add 'long long' support to the array module.
 | 
						|
  Initial patch by Oren Tirosh and Hirokazu Yamamoto.
 | 
						|
 | 
						|
- Issue #12483: ctypes: Fix a crash when the destruction of a callback
 | 
						|
  object triggers the garbage collector.
 | 
						|
 | 
						|
- Issue #12950: Fix passing file descriptors in multiprocessing, under
 | 
						|
  OpenIndiana/Illumos.
 | 
						|
 | 
						|
- Issue #12764: Fix a crash in ctypes when the name of a Structure field is not
 | 
						|
  a string.
 | 
						|
 | 
						|
- Issue #11241: subclasses of ctypes.Array can now be subclassed.
 | 
						|
 | 
						|
- Issue #9651: Fix a crash when ctypes.create_string_buffer(0) was passed to
 | 
						|
  some functions like file.write().
 | 
						|
 | 
						|
- Issue #10309: Define _GNU_SOURCE so that mremap() gets the proper
 | 
						|
  signature.  Without this, architectures where sizeof void* != sizeof int are
 | 
						|
  broken.  Patch given by Hallvard B Furuseth.
 | 
						|
 | 
						|
- Issue #12051: Fix segfault in json.dumps() while encoding highly-nested
 | 
						|
  objects using the C accelerations.
 | 
						|
 | 
						|
- Issue #12017: Fix segfault in json.loads() while decoding highly-nested
 | 
						|
  objects using the C accelerations.
 | 
						|
 | 
						|
- Issue #1838: Prevent segfault in ctypes, when _as_parameter_ on a class is set
 | 
						|
  to an instance of the class.
 | 
						|
 | 
						|
Tests
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #13125: Silence spurious test_lib2to3 output when in non-verbose mode.
 | 
						|
  Patch by Mikhail Novikov.
 | 
						|
 | 
						|
- Issue #13447: Add a test file to host regression tests for bugs in the
 | 
						|
  scripts found in the Tools directory.
 | 
						|
 | 
						|
- Issue #10881: Fix test_site failure with OS X framework builds.
 | 
						|
 | 
						|
- Issue #13901: Prevent test_distutils failures on OS X with --enable-shared.
 | 
						|
 | 
						|
- Issue #13862: Fix spurious failure in test_zlib due to runtime/compile time
 | 
						|
  minor versions not matching.
 | 
						|
 | 
						|
- Issue #12804: Fix test_socket and test_urllib2net failures when running tests
 | 
						|
  on a system without internet access.
 | 
						|
 | 
						|
- Issue #13726: Fix the ambiguous -S flag in regrtest. It is -o/--slow for slow
 | 
						|
  tests.
 | 
						|
 | 
						|
- Issue #11659: Fix ResourceWarning in test_subprocess introduced by #11459.
 | 
						|
  Patch by Ben Hayden.
 | 
						|
 | 
						|
- Issue #11577: fix ResourceWarning triggered by improved binhex test coverage
 | 
						|
 | 
						|
- Issue #11509: Significantly increase test coverage of fileinput.
 | 
						|
  Patch by Denver Coneybeare at PyCon 2011 Sprints.
 | 
						|
 | 
						|
- Issue #11689: Fix a variable scoping error in an sqlite3 test
 | 
						|
 | 
						|
- Issue #13786: Remove unimplemented 'trace' long option from regrtest.py.
 | 
						|
 | 
						|
- Issue #13725: Fix regrtest to recognize the documented -d flag.
 | 
						|
  Patch by Erno Tukia.
 | 
						|
 | 
						|
- Issue #13304: Skip test case if user site-packages disabled (-s or
 | 
						|
  PYTHONNOUSERSITE).  (Patch by Carl Meyer)
 | 
						|
 | 
						|
- Issue #5661: Add a test for ECONNRESET/EPIPE handling to test_asyncore. Patch
 | 
						|
  by Xavier de Gaye.
 | 
						|
 | 
						|
- Issue #13218: Fix test_ssl failures on Debian/Ubuntu.
 | 
						|
 | 
						|
- Re-enable lib2to3's test_parser.py tests, though with an expected failure
 | 
						|
  (see issue #13125).
 | 
						|
 | 
						|
- Issue #12656: Add tests for IPv6 and Unix sockets to test_asyncore.
 | 
						|
 | 
						|
- Issue #6484: Add unit tests for mailcap module (patch by Gregory Nofi)
 | 
						|
 | 
						|
- Issue #11651: Improve the Makefile test targets to run more of the test suite
 | 
						|
  more quickly. The --multiprocess option is now enabled by default, reducing
 | 
						|
  the amount of time needed to run the tests. "make test" and "make quicktest"
 | 
						|
  now include some resource-intensive tests, but no longer run the test suite
 | 
						|
  twice to check for bugs in .pyc generation. Tools/scripts/run_test.py provides
 | 
						|
  an easy platform-independent way to run test suite with sensible defaults.
 | 
						|
 | 
						|
- Issue #12331: The test suite for the packaging module can now run from an
 | 
						|
  installed Python.
 | 
						|
 | 
						|
- Issue #12331: The test suite for lib2to3 can now run from an installed
 | 
						|
  Python.
 | 
						|
 | 
						|
- Issue #12626: In regrtest, allow to filter tests using a glob filter
 | 
						|
  with the ``-m`` (or ``--match``) option.  This works with all test cases
 | 
						|
  using the unittest module.  This is useful with long test suites
 | 
						|
  such as test_io or test_subprocess.
 | 
						|
 | 
						|
- Issue #12624: It is now possible to fail after the first failure when
 | 
						|
  running in verbose mode (``-v`` or ``-W``), by using the ``--failfast``
 | 
						|
  (or ``-G``) option to regrtest.  This is useful with long test suites
 | 
						|
  such as test_io or test_subprocess.
 | 
						|
 | 
						|
- Issue #12587: Correct faulty test file and reference in test_tokenize.
 | 
						|
  (Patch by Robert Xiao)
 | 
						|
 | 
						|
- Issue #12573: Add resource checks for dangling Thread and Process objects.
 | 
						|
 | 
						|
- Issue #12549: Correct test_platform to not fail when OS X returns 'x86_64'
 | 
						|
  as the processor type on some Mac systems.
 | 
						|
 | 
						|
- Skip network tests when getaddrinfo() returns EAI_AGAIN, meaning a temporary
 | 
						|
  failure in name resolution.
 | 
						|
 | 
						|
- Issue #11812: Solve transient socket failure to connect to 'localhost'
 | 
						|
  in test_telnetlib.py.
 | 
						|
 | 
						|
- Solved a potential deadlock in test_telnetlib.py. Related to issue #11812.
 | 
						|
 | 
						|
- Avoid failing in test_robotparser when mueblesmoraleda.com is flaky and
 | 
						|
  an overzealous DNS service (e.g. OpenDNS) redirects to a placeholder
 | 
						|
  Web site.
 | 
						|
 | 
						|
- Avoid failing in test_urllibnet.test_bad_address when some overzealous
 | 
						|
  DNS service (e.g. OpenDNS) resolves a non-existent domain name.  The test
 | 
						|
  is now skipped instead.
 | 
						|
 | 
						|
- Issue #12440: When testing whether some bits in SSLContext.options can be
 | 
						|
  reset, check the version of the OpenSSL headers Python was compiled against,
 | 
						|
  rather than the runtime version of the OpenSSL library.
 | 
						|
 | 
						|
- Issue #11512: Add a test suite for the cgitb module. Patch by Robbie Clemons.
 | 
						|
 | 
						|
- Issue #12497: Install test/data to prevent failures of the various codecmaps
 | 
						|
  tests.
 | 
						|
 | 
						|
- Issue #12496: Install test/capath directory to prevent test_connect_capath
 | 
						|
  testcase failure in test_ssl.
 | 
						|
 | 
						|
- Issue #12469: Run wakeup and pending signal tests in a subprocess to run the
 | 
						|
  test in a fresh process with only one thread and to not change signal
 | 
						|
  handling of the parent process.
 | 
						|
 | 
						|
- Issue #8716: Avoid crashes caused by Aqua Tk on OSX when attempting to run
 | 
						|
  test_tk or test_ttk_guionly under a username that is not currently logged
 | 
						|
  in to the console windowserver (as may be the case under buildbot or ssh).
 | 
						|
 | 
						|
- Issue #12407: Explicitly skip test_capi.EmbeddingTest under Windows.
 | 
						|
 | 
						|
- Issue #12400: regrtest -W doesn't rerun the tests twice anymore, but captures
 | 
						|
  the output and displays it on failure instead. regrtest -v doesn't print the
 | 
						|
  error twice anymore if there is only one error.
 | 
						|
 | 
						|
- Issue #12141: Install copies of template C module file so that
 | 
						|
  test_build_ext of test_distutils and test_command_build_ext of
 | 
						|
  test_packaging are no longer silently skipped when
 | 
						|
  run outside of a build directory.
 | 
						|
 | 
						|
- Issue #8746: Add additional tests for os.chflags() and os.lchflags().
 | 
						|
  Patch by Garrett Cooper.
 | 
						|
 | 
						|
- Issue #10736: Fix test_ttk test_widgets failures with Cocoa Tk 8.5.9
 | 
						|
  2.8+ on Mac OS X.  (Patch by Ronald Oussoren)
 | 
						|
 | 
						|
- Issue #12057: Add tests for ISO 2022 codecs (iso2022_jp, iso2022_jp_2,
 | 
						|
  iso2022_kr).
 | 
						|
 | 
						|
- Issue #12096: Fix a race condition in test_threading.test_waitfor(). Patch
 | 
						|
  written by Charles-François Natali.
 | 
						|
 | 
						|
- Issue #11614: import __hello__ prints "Hello World!". Patch written by
 | 
						|
  Andreas Stührk.
 | 
						|
 | 
						|
- Issue #5723: Improve json tests to be executed with and without accelerations.
 | 
						|
 | 
						|
- Issue #12041: Make test_wait3 more robust.
 | 
						|
 | 
						|
- Issue #11873: Change regex in test_compileall to fix occasional failures when
 | 
						|
  when the randomly generated temporary path happened to match the regex.
 | 
						|
 | 
						|
- Issue #11958: Fix FTP tests for IPv6, bind to "::1" instead of "localhost".
 | 
						|
  Patch written by Charles-Francois Natali.
 | 
						|
 | 
						|
- Issue #8407, #11859: Fix tests of test_io using threads and an alarm: use
 | 
						|
  pthread_sigmask() to ensure that the SIGALRM signal is received by the main
 | 
						|
  thread.
 | 
						|
 | 
						|
- Issue #11811: Factor out detection of IPv6 support on the current host
 | 
						|
  and make it available as ``test.support.IPV6_ENABLED``.  Patch by
 | 
						|
  Charles-François Natali.
 | 
						|
 | 
						|
- Issue #10914: Add a minimal embedding test to test_capi.
 | 
						|
 | 
						|
- Issue #11223: Skip test_lock_acquire_interruption() and
 | 
						|
  test_rlock_acquire_interruption() of test_threadsignals if a thread lock is
 | 
						|
  implemented using a POSIX mutex and a POSIX condition variable. A POSIX
 | 
						|
  condition variable cannot be interrupted by a signal (e.g. on Linux, the
 | 
						|
  futex system call is restarted).
 | 
						|
 | 
						|
- Issue #11790: Fix sporadic failures in test_multiprocessing.WithProcessesTestCondition.
 | 
						|
 | 
						|
- Fix possible "file already exists" error when running the tests in parallel.
 | 
						|
 | 
						|
- Issue #11719: Fix message about unexpected test_msilib skip on non-Windows
 | 
						|
  platforms. Patch by Nadeem Vawda.
 | 
						|
 | 
						|
- Issue #11727: Add a --timeout option to regrtest: if a test takes more than
 | 
						|
  TIMEOUT seconds, dumps the traceback of all threads and exits.
 | 
						|
 | 
						|
- Issue #11653: fix -W with -j in regrtest.
 | 
						|
 | 
						|
- The email test suite now lives in the Lib/test/test_email package.  The test
 | 
						|
  harness code has also been modernized to allow use of new unittest features.
 | 
						|
 | 
						|
- regrtest now discovers test packages as well as test modules.
 | 
						|
 | 
						|
- Issue #11577: improve test coverage of binhex.py. Patch by Arkady Koplyarov.
 | 
						|
 | 
						|
- New test_crashers added to exercise the scripts in the Lib/test/crashers
 | 
						|
  directory and confirm they fail as expected
 | 
						|
 | 
						|
- Issue #11578: added test for the timeit module.  Patch by Michael Henry.
 | 
						|
 | 
						|
- Issue #11503: improve test coverage of posixpath.py. Patch by Evan Dandrea.
 | 
						|
 | 
						|
- Issue #11505: improves test coverage of string.py, increases granularity of
 | 
						|
  string.Formatter tests. Initial patch by Alicia Arlen.
 | 
						|
 | 
						|
- Issue #11548: Improve test coverage of the shutil module. Patch by
 | 
						|
  Evan Dandrea.
 | 
						|
 | 
						|
- Issue #11554: Reactivated test_email_codecs.
 | 
						|
 | 
						|
- Issue #11505: improves test coverage of string.py. Patch by Alicia
 | 
						|
  Arlen
 | 
						|
 | 
						|
- Issue #11490: test_subprocess.test_leaking_fds_on_error no longer gives a
 | 
						|
  false positive if the last directory in the path is inaccessible.
 | 
						|
 | 
						|
- Issue #11223: Fix test_threadsignals to fail, not hang, when the
 | 
						|
  non-semaphore implementation of locks is used under POSIX.
 | 
						|
 | 
						|
- Issue #10911: Add tests on CGI with non-ASCII characters. Patch written by
 | 
						|
  Pierre Quentel.
 | 
						|
 | 
						|
- Issue #9931: Fix hangs in GUI tests under Windows in certain conditions.
 | 
						|
  Patch by Hirokazu Yamamoto.
 | 
						|
 | 
						|
- Issue #10512: Properly close sockets under test.test_cgi.
 | 
						|
 | 
						|
- Issue #10992: Make tests pass under coverage.
 | 
						|
 | 
						|
- Issue #10826: Prevent sporadic failure in test_subprocess on Solaris due
 | 
						|
  to open door files.
 | 
						|
 | 
						|
- Issue #10990: Prevent tests from clobbering a set trace function.
 | 
						|
 | 
						|
C-API
 | 
						|
-----
 | 
						|
 | 
						|
- Issue #13452: PyUnicode_EncodeDecimal() doesn't support error handlers
 | 
						|
  different than "strict" anymore. The caller was unable to compute the
 | 
						|
  size of the output buffer: it depends on the error handler.
 | 
						|
 | 
						|
- Issue #13560: Add PyUnicode_DecodeLocale(), PyUnicode_DecodeLocaleAndSize()
 | 
						|
  and PyUnicode_EncodeLocale() functions to the C API to decode/encode from/to
 | 
						|
  the current locale encoding.
 | 
						|
 | 
						|
- Issue #10831: PyUnicode_FromFormat() supports %li, %lli and %zi formats.
 | 
						|
 | 
						|
- Issue #11246: Fix PyUnicode_FromFormat("%V") to decode the byte string from
 | 
						|
  UTF-8 (with replace error handler) instead of ISO-8859-1 (in strict mode).
 | 
						|
  Patch written by Ray Allen.
 | 
						|
 | 
						|
- Issue #10830: Fix PyUnicode_FromFormatV("%c") for non-BMP characters on
 | 
						|
  narrow build.
 | 
						|
 | 
						|
- Add PyObject_GenericGetDict and PyObject_GeneriSetDict. They are generic
 | 
						|
  implementations for the getter and setter of a ``__dict__`` descriptor of C
 | 
						|
  types.
 | 
						|
 | 
						|
- Issue #13727: Add 3 macros to access PyDateTime_Delta members:
 | 
						|
  PyDateTime_DELTA_GET_DAYS, PyDateTime_DELTA_GET_SECONDS,
 | 
						|
  PyDateTime_DELTA_GET_MICROSECONDS.
 | 
						|
 | 
						|
- Issue #10542: Add 4 macros to work with surrogates: Py_UNICODE_IS_SURROGATE,
 | 
						|
  Py_UNICODE_IS_HIGH_SURROGATE, Py_UNICODE_IS_LOW_SURROGATE,
 | 
						|
  Py_UNICODE_JOIN_SURROGATES.
 | 
						|
 | 
						|
- Issue #12724: Add Py_RETURN_NOTIMPLEMENTED macro for returning NotImplemented.
 | 
						|
 | 
						|
- PY_PATCHLEVEL_REVISION has been removed, since it's meaningless with
 | 
						|
  Mercurial.
 | 
						|
 | 
						|
- Issue #12173: The first argument of PyImport_ImportModuleLevel is now `const
 | 
						|
  char *` instead of `char *`.
 | 
						|
 | 
						|
- Issue #12380: PyArg_ParseTuple now accepts a bytearray for the 'c' format.
 | 
						|
 | 
						|
Documentation
 | 
						|
-------------
 | 
						|
 | 
						|
- Issue #23006: Improve the documentation and indexing of dict.__missing__.
 | 
						|
  Add an entry in the language datamodel special methods section.
 | 
						|
  Revise and index its discussion in the stdtypes mapping/dict section.
 | 
						|
 | 
						|
- Issue #13989: Document that GzipFile does not support text mode, and give a
 | 
						|
  more helpful error message when opened with an invalid mode string.
 | 
						|
 | 
						|
- Issue #13921: Undocument and clean up sqlite3.OptimizedUnicode,
 | 
						|
  which is obsolete in Python 3.x. It's now aliased to str for
 | 
						|
  backwards compatibility.
 | 
						|
 | 
						|
- Issue #12102: Document that buffered files must be flushed before being used
 | 
						|
  with mmap. Patch by Steffen Daode Nurpmeso.
 | 
						|
 | 
						|
- Issue #8982: Improve the documentation for the argparse Namespace object.
 | 
						|
 | 
						|
- Issue #9343: Document that argparse parent parsers must be configured before
 | 
						|
  their children.
 | 
						|
 | 
						|
- Issue #13498: Clarify docs of os.makedirs()'s exist_ok argument.  Done with
 | 
						|
  great native-speaker help from R. David Murray.
 | 
						|
 | 
						|
- Issues #13491 and #13995: Fix many errors in sqlite3 documentation.
 | 
						|
  Initial patch for #13491 by Johannes Vogel.
 | 
						|
 | 
						|
- Issue #13402: Document absoluteness of sys.executable.
 | 
						|
 | 
						|
- Issue #13883: PYTHONCASEOK also works on OS X.
 | 
						|
 | 
						|
- Issue #9021: Add an introduction to the copy module documentation.
 | 
						|
 | 
						|
- Issue #6005: Examples in the socket library documentation use sendall, where
 | 
						|
  relevant, instead send method.
 | 
						|
 | 
						|
- Issue #12798: Updated the mimetypes documentation.
 | 
						|
 | 
						|
- Issue #12949: Document the kwonlyargcount argument for the PyCode_New
 | 
						|
  C API function.
 | 
						|
 | 
						|
- Issue #13513: Fix io.IOBase documentation to correctly link to the
 | 
						|
  io.IOBase.readline method instead of the readline module.
 | 
						|
 | 
						|
- Issue #13237: Reorganise subprocess documentation to emphasise convenience
 | 
						|
  functions and the most commonly needed arguments to Popen.
 | 
						|
 | 
						|
- Issue #13141: Demonstrate recommended style for socketserver examples.
 | 
						|
 | 
						|
- Issue #11818: Fix tempfile examples for Python 3.
 | 
						|
 | 
						|
 | 
						|
**(For information about older versions, consult the HISTORY file.)**
 |