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3.7.0b3

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Ned Deily 2018-03-29 07:57:55 -04:00
parent 7a6f59e123
commit 4e7efa9c6f
58 changed files with 589 additions and 129 deletions
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4
Include/patchlevel.h
View file

@ -20,10 +20,10 @@
#define PY_MINOR_VERSION 7 #define PY_MINOR_VERSION 7
#define PY_MICRO_VERSION 0 #define PY_MICRO_VERSION 0
#define PY_RELEASE_LEVEL PY_RELEASE_LEVEL_BETA #define PY_RELEASE_LEVEL PY_RELEASE_LEVEL_BETA
#define PY_RELEASE_SERIAL 2 #define PY_RELEASE_SERIAL 3
/* Version as a string */ /* Version as a string */
#define PY_VERSION "3.7.0b2+" #define PY_VERSION "3.7.0b3"
/*--end constants--*/ /*--end constants--*/
/* Version as a single 4-byte hex number, e.g. 0x010502B2 == 1.5.2b2. /* Version as a single 4-byte hex number, e.g. 0x010502B2 == 1.5.2b2.

52
Lib/pydoc_data/topics.py
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@ -1,5 +1,5 @@
# -*- coding: utf-8 -*- # -*- coding: utf-8 -*-
# Autogenerated by Sphinx on Tue Feb 27 19:39:14 2018 # Autogenerated by Sphinx on Thu Mar 29 07:53:04 2018
topics = {'assert': 'The "assert" statement\n' topics = {'assert': 'The "assert" statement\n'
'**********************\n' '**********************\n'
'\n' '\n'
@ -6665,12 +6665,10 @@ topics = {'assert': 'The "assert" statement\n'
'object.__complex__(self)\n' 'object.__complex__(self)\n'
'object.__int__(self)\n' 'object.__int__(self)\n'
'object.__float__(self)\n' 'object.__float__(self)\n'
'object.__round__(self[, n])\n'
'\n' '\n'
' Called to implement the built-in functions "complex()", ' ' Called to implement the built-in functions "complex()", '
'"int()",\n' '"int()" and\n'
' "float()" and "round()". Should return a value of the ' ' "float()". Should return a value of the appropriate '
'appropriate\n'
'type.\n' 'type.\n'
'\n' '\n'
'object.__index__(self)\n' 'object.__index__(self)\n'
@ -6689,7 +6687,25 @@ topics = {'assert': 'The "assert" statement\n'
'when\n' 'when\n'
' "__index__()" is defined "__int__()" should also be ' ' "__index__()" is defined "__int__()" should also be '
'defined, and\n' 'defined, and\n'
' both should return the same value.\n', ' both should return the same value.\n'
'\n'
'object.__round__(self[, ndigits])\n'
'object.__trunc__(self)\n'
'object.__floor__(self)\n'
'object.__ceil__(self)\n'
'\n'
' Called to implement the built-in function "round()" and '
'"math"\n'
' functions "trunc()", "floor()" and "ceil()". Unless '
'*ndigits* is\n'
' passed to "__round__()" all these methods should return '
'the value\n'
' of the object truncated to an "Integral" (typically an '
'"int").\n'
'\n'
' If "__int__()" is not defined then the built-in function '
'"int()"\n'
' falls back to "__trunc__()".\n',
'objects': 'Objects, values and types\n' 'objects': 'Objects, values and types\n'
'*************************\n' '*************************\n'
'\n' '\n'
@ -9261,12 +9277,10 @@ topics = {'assert': 'The "assert" statement\n'
'object.__complex__(self)\n' 'object.__complex__(self)\n'
'object.__int__(self)\n' 'object.__int__(self)\n'
'object.__float__(self)\n' 'object.__float__(self)\n'
'object.__round__(self[, n])\n'
'\n' '\n'
' Called to implement the built-in functions "complex()", ' ' Called to implement the built-in functions "complex()", '
'"int()",\n' '"int()" and\n'
' "float()" and "round()". Should return a value of the ' ' "float()". Should return a value of the appropriate '
'appropriate\n'
'type.\n' 'type.\n'
'\n' '\n'
'object.__index__(self)\n' 'object.__index__(self)\n'
@ -9287,6 +9301,24 @@ topics = {'assert': 'The "assert" statement\n'
'defined, and\n' 'defined, and\n'
' both should return the same value.\n' ' both should return the same value.\n'
'\n' '\n'
'object.__round__(self[, ndigits])\n'
'object.__trunc__(self)\n'
'object.__floor__(self)\n'
'object.__ceil__(self)\n'
'\n'
' Called to implement the built-in function "round()" and '
'"math"\n'
' functions "trunc()", "floor()" and "ceil()". Unless '
'*ndigits* is\n'
' passed to "__round__()" all these methods should return '
'the value\n'
' of the object truncated to an "Integral" (typically an '
'"int").\n'
'\n'
' If "__int__()" is not defined then the built-in function '
'"int()"\n'
' falls back to "__trunc__()".\n'
'\n'
'\n' '\n'
'With Statement Context Managers\n' 'With Statement Context Managers\n'
'===============================\n' '===============================\n'

541
Misc/NEWS.d/3.7.0b3.rst Normal file
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@ -0,0 +1,541 @@
.. bpo: 33136
.. date: 2018-03-25-12-05-43
.. nonce: TzSN4x
.. release date: 2018-03-29
.. section: Security
Harden ssl module against LibreSSL CVE-2018-8970.
X509_VERIFY_PARAM_set1_host() is called with an explicit namelen. A new test
ensures that NULL bytes are not allowed.
..
.. bpo: 33001
.. date: 2018-03-05-10-09-51
.. nonce: elj4Aa
.. section: Security
Minimal fix to prevent buffer overrun in os.symlink on Windows
..
.. bpo: 32981
.. date: 2018-03-02-10-24-52
.. nonce: O_qDyj
.. section: Security
Regexes in difflib and poplib were vulnerable to catastrophic backtracking.
These regexes formed potential DOS vectors (REDOS). They have been
refactored. This resolves CVE-2018-1060 and CVE-2018-1061. Patch by Jamie
Davis.
..
.. bpo: 33053
.. date: 2018-03-25-19-49-06
.. nonce: V3xlsH
.. section: Core and Builtins
When using the -m switch, sys.path[0] is now explicitly expanded as the
*starting* working directory, rather than being left as the empty path
(which allows imports from the current working directory at the time of the
import)
..
.. bpo: 33018
.. date: 2018-03-22-23-09-06
.. nonce: 0ncEJV
.. section: Core and Builtins
Improve consistency of errors raised by ``issubclass()`` when called with a
non-class and an abstract base class as the first and second arguments,
respectively. Patch by Josh Bronson.
..
.. bpo: 33041
.. date: 2018-03-18-13-56-14
.. nonce: XwPhI2
.. section: Core and Builtins
Fixed jumping when the function contains an ``async for`` loop.
..
.. bpo: 33026
.. date: 2018-03-08-09-48-38
.. nonce: QZA3Ba
.. section: Core and Builtins
Fixed jumping out of "with" block by setting f_lineno.
..
.. bpo: 33005
.. date: 2018-03-06-12-19-19
.. nonce: LP-V2U
.. section: Core and Builtins
Fix a crash on fork when using a custom memory allocator (ex: using
PYTHONMALLOC env var). _PyGILState_Reinit() and _PyInterpreterState_Enable()
now use the default RAW memory allocator to allocate a new interpreters
mutex on fork.
..
.. bpo: 17288
.. date: 2018-02-27-13-36-21
.. nonce: Gdj24S
.. section: Core and Builtins
Prevent jumps from 'return' and 'exception' trace events.
..
.. bpo: 32836
.. date: 2018-02-14-12-35-47
.. nonce: bThJnx
.. section: Core and Builtins
Don't use temporary variables in cases of list/dict/set comprehensions
..
.. bpo: 33141
.. date: 2018-03-26-12-33-13
.. nonce: 23wlxf
.. section: Library
Have Field objects pass through __set_name__ to their default values, if
they have their own __set_name__.
..
.. bpo: 33096
.. date: 2018-03-25-13-18-16
.. nonce: ofdbe7
.. section: Library
Allow ttk.Treeview.insert to insert iid that has a false boolean value. Note
iid=0 and iid=False would be same. Patch by Garvit Khatri.
..
.. bpo: 32873
.. date: 2018-03-24-19-54-48
.. nonce: cHyoAm
.. section: Library
Treat type variables and special typing forms as immutable by copy and
pickle. This fixes several minor issues and inconsistencies, and improves
backwards compatibility with Python 3.6.
..
.. bpo: 33134
.. date: 2018-03-24-19-34-26
.. nonce: hbVeIX
.. section: Library
When computing dataclass's __hash__, use the lookup table to contain the
function which returns the __hash__ value. This is an improvement over
looking up a string, and then testing that string to see what to do.
..
.. bpo: 33127
.. date: 2018-03-24-15-08-24
.. nonce: olJmHv
.. section: Library
The ssl module now compiles with LibreSSL 2.7.1.
..
.. bpo: 32505
.. date: 2018-03-22-16-05-56
.. nonce: YK1N8v
.. section: Library
Raise TypeError if a member variable of a dataclass is of type Field, but
doesn't have a type annotation.
..
.. bpo: 33078
.. date: 2018-03-21-17-59-39
.. nonce: PQOniT
.. section: Library
Fix the failure on OSX caused by the tests relying on sem_getvalue
..
.. bpo: 33116
.. date: 2018-03-21-16-52-26
.. nonce: Tvzerj
.. section: Library
Add 'Field' to dataclasses.__all__.
..
.. bpo: 32896
.. date: 2018-03-20-20-53-21
.. nonce: ewW3Ln
.. section: Library
Fix an error where subclassing a dataclass with a field that uses a
default_factory would generate an incorrect class.
..
.. bpo: 33100
.. date: 2018-03-19-20-47-00
.. nonce: chyIO4
.. section: Library
Dataclasses: If a field has a default value that's a MemberDescriptorType,
then it's from that field being in __slots__, not an actual default value.
..
.. bpo: 32953
.. date: 2018-03-18-17-38-48
.. nonce: t8WAWN
.. section: Library
If a non-dataclass inherits from a frozen dataclass, allow attributes to be
added to the derived class. Only attributes from the frozen dataclass
cannot be assigned to. Require all dataclasses in a hierarchy to be either
all frozen or all non-frozen.
..
.. bpo: 33061
.. date: 2018-03-16-16-07-33
.. nonce: TRTTek
.. section: Library
Add missing ``NoReturn`` to ``__all__`` in typing.py
..
.. bpo: 33078
.. date: 2018-03-15-07-38-00
.. nonce: RmjUF5
.. section: Library
Fix the size handling in multiprocessing.Queue when a pickling error occurs.
..
.. bpo: 33064
.. date: 2018-03-12-19-58-25
.. nonce: LO2KIY
.. section: Library
lib2to3 now properly supports trailing commas after ``*args`` and
``**kwargs`` in function signatures.
..
.. bpo: 33056
.. date: 2018-03-12-16-40-00
.. nonce: lNN9Eh
.. section: Library
FIX properly close leaking fds in concurrent.futures.ProcessPoolExecutor.
..
.. bpo: 33021
.. date: 2018-03-12-00-27-56
.. nonce: m19B9T
.. section: Library
Release the GIL during fstat() calls, avoiding hang of all threads when
calling mmap.mmap(), os.urandom(), and random.seed(). Patch by Nir Soffer.
..
.. bpo: 31804
.. date: 2018-03-11-19-03-52
.. nonce: i8KUMp
.. section: Library
Avoid failing in multiprocessing.Process if the standard streams are closed
or None at exit.
..
.. bpo: 33037
.. date: 2018-03-09-23-07-07
.. nonce: nAJ3at
.. section: Library
Skip sending/receiving data after SSL transport closing.
..
.. bpo: 27683
.. date: 2018-03-07-22-28-17
.. nonce: 572Rv4
.. section: Library
Fix a regression in :mod:`ipaddress` that result of :meth:`hosts` is empty
when the network is constructed by a tuple containing an integer mask and
only 1 bit left for addresses.
..
.. bpo: 32999
.. date: 2018-03-06-20-30-20
.. nonce: lgFXWl
.. section: Library
Fix C implemetation of ``ABC.__subclasscheck__(cls, subclass)`` crashed when
``subclass`` is not a type object.
..
.. bpo: 33009
.. date: 2018-03-06-11-54-59
.. nonce: -Ekysb
.. section: Library
Fix inspect.signature() for single-parameter partialmethods.
..
.. bpo: 32969
.. date: 2018-03-06-00-19-41
.. nonce: rGTKa0
.. section: Library
Expose several missing constants in zlib and fix corresponding
documentation.
..
.. bpo: 32056
.. date: 2018-03-01-17-49-56
.. nonce: IlpfgE
.. section: Library
Improved exceptions raised for invalid number of channels and sample width
when read an audio file in modules :mod:`aifc`, :mod:`wave` and
:mod:`sunau`.
..
.. bpo: 32844
.. date: 2018-02-28-13-08-00
.. nonce: u8tnAe
.. section: Library
Fix wrong redirection of a low descriptor (0 or 1) to stderr in subprocess
if another low descriptor is closed.
..
.. bpo: 32857
.. date: 2018-02-16-14-37-14
.. nonce: -XljAx
.. section: Library
In :mod:`tkinter`, ``after_cancel(None)`` now raises a :exc:`ValueError`
instead of canceling the first scheduled function. Patch by Cheryl Sabella.
..
.. bpo: 31639
.. date: 2017-12-27-21-55-19
.. nonce: l3avDJ
.. section: Library
http.server now exposes a ThreadedHTTPServer class and uses it when the
module is run with ``-m`` to cope with web browsers pre-opening sockets.
..
.. bpo: 27645
.. date: 2017-10-05-20-41-48
.. nonce: 1Y_Wag
.. section: Library
:class:`sqlite3.Connection` now exposes a
:class:`~sqlite3.Connection.backup` method, if the underlying SQLite library
is at version 3.6.11 or higher. Patch by Lele Gaifax.
..
.. bpo: 33126
.. date: 2018-03-28-17-03-17
.. nonce: 5UGkNv
.. section: Documentation
Document PyBuffer_ToContiguous().
..
.. bpo: 27212
.. date: 2018-03-22-19-23-04
.. nonce: wrE5KR
.. section: Documentation
Modify documentation for the :func:`islice` recipe to consume initial values
up to the start index.
..
.. bpo: 28247
.. date: 2018-03-20-20-11-05
.. nonce: -V-WS-
.. section: Documentation
Update :mod:`zipapp` documentation to describe how to make standalone
applications.
..
.. bpo: 18802
.. date: 2018-03-11-18-53-47
.. nonce: JhAqH3
.. section: Documentation
Documentation changes for ipaddress. Patch by Jon Foster and Berker Peksag.
..
.. bpo: 27428
.. date: 2018-03-11-00-16-56
.. nonce: B7A8FT
.. section: Documentation
Update documentation to clarify that ``WindowsRegistryFinder`` implements
``MetaPathFinder``. (Patch by Himanshu Lakhara)
..
.. bpo: 32872
.. date: 2018-03-28-01-35-02
.. nonce: J5NDUj
.. section: Tests
Avoid regrtest compatibility issue with namespace packages.
..
.. bpo: 32517
.. date: 2018-03-09-07-05-12
.. nonce: ugc1iW
.. section: Tests
Fix failing ``test_asyncio`` on macOS 10.12.2+ due to transport of
``KqueueSelector`` loop was not being closed.
..
.. bpo: 19417
.. date: 2018-01-08-13-33-47
.. nonce: 2asoXy
.. section: Tests
Add test_bdb.py.
..
.. bpo: 33163
.. date: 2018-03-28-04-15-03
.. nonce: hfpWuU
.. section: Build
Upgrade pip to 9.0.3 and setuptools to v39.0.1.
..
.. bpo: 33016
.. date: 2018-03-07-01-33-33
.. nonce: Z_Med0
.. section: Windows
Fix potential use of uninitialized memory in nt._getfinalpathname
..
.. bpo: 32903
.. date: 2018-02-28-11-03-24
.. nonce: 1SXY4t
.. section: Windows
Fix a memory leak in os.chdir() on Windows if the current directory is set
to a UNC path.
..
.. bpo: 32726
.. date: 2018-03-29-06-56-12
.. nonce: urS9uX
.. section: macOS
Build and link with private copy of Tcl/Tk 8.6 for the macOS 10.6+
installer. The 10.9+ installer variant already does this. This means that
the Python 3.7 provided by the python.org macOS installers no longer need or
use any external versions of Tcl/Tk, either system-provided or user-
installed, such as ActiveTcl.
..
.. bpo: 32984
.. date: 2018-03-05-01-29-05
.. nonce: NGjgT4
.. section: IDLE
Set ``__file__`` while running a startup file. Like Python, IDLE optionally
runs one startup file in the Shell window before presenting the first
interactive input prompt. For IDLE, ``-s`` runs a file named in
environmental variable :envvar:`IDLESTARTUP` or :envvar:`PYTHONSTARTUP`;
``-r file`` runs ``file``. Python sets ``__file__`` to the startup file
name before running the file and unsets it before the first prompt. IDLE
now does the same when run normally, without the ``-n`` option.
..
.. bpo: 32940
.. date: 2018-02-24-18-20-50
.. nonce: ZaJ1Rf
.. section: IDLE
Simplify and rename StringTranslatePseudoMapping in pyparse.
..
.. bpo: 32885
.. date: 2018-02-20-12-16-47
.. nonce: dL5x7C
.. section: Tools/Demos
Add an ``-n`` flag for ``Tools/scripts/pathfix.py`` to disbale automatic
backup creation (files with ``~`` suffix).
..
.. bpo: 33042
.. date: 2018-03-20-21-43-09
.. nonce: FPFp64
.. section: C API
Embedding applications may once again call PySys_ResetWarnOptions,
PySys_AddWarnOption, and PySys_AddXOption prior to calling Py_Initialize.
..
.. bpo: 32374
.. date: 2018-01-09-17-03-54
.. nonce: SwwLoz
.. section: C API
Document that m_traverse for multi-phase initialized modules can be called
with m_state=NULL, and add a sanity check

1
Misc/NEWS.d/next/Build/2018-03-28-04-15-03.bpo-33163.hfpWuU.rst
View file

@ -1 +0,0 @@
Upgrade pip to 9.0.3 and setuptools to v39.0.1.

2
Misc/NEWS.d/next/C API/2018-01-09-17-03-54.bpo-32374.SwwLoz.rst
View file

@ -1,2 +0,0 @@
Document that m_traverse for multi-phase initialized modules can be called
with m_state=NULL, and add a sanity check

2
Misc/NEWS.d/next/C API/2018-03-20-21-43-09.bpo-33042.FPFp64.rst
View file

@ -1,2 +0,0 @@
Embedding applications may once again call PySys_ResetWarnOptions,
PySys_AddWarnOption, and PySys_AddXOption prior to calling Py_Initialize.

1
Misc/NEWS.d/next/Core and Builtins/2018-02-14-12-35-47.bpo-32836.bThJnx.rst
View file

@ -1 +0,0 @@
Don't use temporary variables in cases of list/dict/set comprehensions

1
Misc/NEWS.d/next/Core and Builtins/2018-02-27-13-36-21.bpo-17288.Gdj24S.rst
View file

@ -1 +0,0 @@
Prevent jumps from 'return' and 'exception' trace events.

4
Misc/NEWS.d/next/Core and Builtins/2018-03-06-12-19-19.bpo-33005.LP-V2U.rst
View file

@ -1,4 +0,0 @@
Fix a crash on fork when using a custom memory allocator (ex: using
PYTHONMALLOC env var). _PyGILState_Reinit() and _PyInterpreterState_Enable()
now use the default RAW memory allocator to allocate a new interpreters mutex
on fork.

1
Misc/NEWS.d/next/Core and Builtins/2018-03-08-09-48-38.bpo-33026.QZA3Ba.rst
View file

@ -1 +0,0 @@
Fixed jumping out of "with" block by setting f_lineno.

1
Misc/NEWS.d/next/Core and Builtins/2018-03-18-13-56-14.bpo-33041.XwPhI2.rst
View file

@ -1 +0,0 @@
Fixed jumping when the function contains an ``async for`` loop.

3
Misc/NEWS.d/next/Core and Builtins/2018-03-22-23-09-06.bpo-33018.0ncEJV.rst
View file

@ -1,3 +0,0 @@
Improve consistency of errors raised by ``issubclass()`` when called with a
non-class and an abstract base class as the first and second arguments,
respectively. Patch by Josh Bronson.

4
Misc/NEWS.d/next/Core and Builtins/2018-03-25-19-49-06.bpo-33053.V3xlsH.rst
View file

@ -1,4 +0,0 @@
When using the -m switch, sys.path[0] is now explicitly expanded as the
*starting* working directory, rather than being left as the empty path
(which allows imports from the current working directory at the time of the
import)

2
Misc/NEWS.d/next/Documentation/2018-03-11-00-16-56.bpo-27428.B7A8FT.rst
View file

@ -1,2 +0,0 @@
Update documentation to clarify that ``WindowsRegistryFinder`` implements
``MetaPathFinder``. (Patch by Himanshu Lakhara)

1
Misc/NEWS.d/next/Documentation/2018-03-11-18-53-47.bpo-18802.JhAqH3.rst
View file

@ -1 +0,0 @@
Documentation changes for ipaddress. Patch by Jon Foster and Berker Peksag.

2
Misc/NEWS.d/next/Documentation/2018-03-20-20-11-05.bpo-28247.-V-WS-.rst
View file

@ -1,2 +0,0 @@
Update :mod:`zipapp` documentation to describe how to make standalone
applications.

2
Misc/NEWS.d/next/Documentation/2018-03-22-19-23-04.bpo-27212.wrE5KR.rst
View file

@ -1,2 +0,0 @@
Modify documentation for the :func:`islice` recipe to consume initial values
up to the start index.

1
Misc/NEWS.d/next/Documentation/2018-03-28-17-03-17.bpo-33126.5UGkNv.rst
View file

@ -1 +0,0 @@
Document PyBuffer_ToContiguous().

1
Misc/NEWS.d/next/IDLE/2018-02-24-18-20-50.bpo-32940.ZaJ1Rf.rst
View file

@ -1 +0,0 @@
Simplify and rename StringTranslatePseudoMapping in pyparse.

7
Misc/NEWS.d/next/IDLE/2018-03-05-01-29-05.bpo-32984.NGjgT4.rst
View file

@ -1,7 +0,0 @@
Set ``__file__`` while running a startup file. Like Python, IDLE optionally
runs one startup file in the Shell window before presenting the first interactive
input prompt. For IDLE, ``-s`` runs a file named in environmental variable
:envvar:`IDLESTARTUP` or :envvar:`PYTHONSTARTUP`; ``-r file`` runs
``file``. Python sets ``__file__`` to the startup file name before running the
file and unsets it before the first prompt. IDLE now does the same when run
normally, without the ``-n`` option.

3
Misc/NEWS.d/next/Library/2017-10-05-20-41-48.bpo-27645.1Y_Wag.rst
View file

@ -1,3 +0,0 @@
:class:`sqlite3.Connection` now exposes a :class:`~sqlite3.Connection.backup`
method, if the underlying SQLite library is at version 3.6.11
or higher. Patch by Lele Gaifax.

2
Misc/NEWS.d/next/Library/2017-12-27-21-55-19.bpo-31639.l3avDJ.rst
View file

@ -1,2 +0,0 @@
http.server now exposes a ThreadedHTTPServer class and uses it when the
module is run with ``-m`` to cope with web browsers pre-opening sockets.

1
Misc/NEWS.d/next/Library/2018-02-16-14-37-14.bpo-32857.-XljAx.rst
View file

@ -1 +0,0 @@
In :mod:`tkinter`, ``after_cancel(None)`` now raises a :exc:`ValueError` instead of canceling the first scheduled function. Patch by Cheryl Sabella.

2
Misc/NEWS.d/next/Library/2018-02-28-13-08-00.bpo-32844.u8tnAe.rst
View file

@ -1,2 +0,0 @@
Fix wrong redirection of a low descriptor (0 or 1) to stderr in subprocess
if another low descriptor is closed.

3
Misc/NEWS.d/next/Library/2018-03-01-17-49-56.bpo-32056.IlpfgE.rst
View file

@ -1,3 +0,0 @@
Improved exceptions raised for invalid number of channels and sample width
when read an audio file in modules :mod:`aifc`, :mod:`wave` and
:mod:`sunau`.

2
Misc/NEWS.d/next/Library/2018-03-06-00-19-41.bpo-32969.rGTKa0.rst
View file

@ -1,2 +0,0 @@
Expose several missing constants in zlib and fix corresponding
documentation.

1
Misc/NEWS.d/next/Library/2018-03-06-11-54-59.bpo-33009.-Ekysb.rst
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Fix inspect.signature() for single-parameter partialmethods.

2
Misc/NEWS.d/next/Library/2018-03-06-20-30-20.bpo-32999.lgFXWl.rst
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Fix C implemetation of ``ABC.__subclasscheck__(cls, subclass)`` crashed when
``subclass`` is not a type object.

3
Misc/NEWS.d/next/Library/2018-03-07-22-28-17.bpo-27683.572Rv4.rst
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Fix a regression in :mod:`ipaddress` that result of :meth:`hosts`
is empty when the network is constructed by a tuple containing an
integer mask and only 1 bit left for addresses.

1
Misc/NEWS.d/next/Library/2018-03-09-23-07-07.bpo-33037.nAJ3at.rst
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Skip sending/receiving data after SSL transport closing.

2
Misc/NEWS.d/next/Library/2018-03-11-19-03-52.bpo-31804.i8KUMp.rst
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Avoid failing in multiprocessing.Process if the standard streams are closed
or None at exit.

2
Misc/NEWS.d/next/Library/2018-03-12-00-27-56.bpo-33021.m19B9T.rst
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Release the GIL during fstat() calls, avoiding hang of all threads when
calling mmap.mmap(), os.urandom(), and random.seed(). Patch by Nir Soffer.

1
Misc/NEWS.d/next/Library/2018-03-12-16-40-00.bpo-33056.lNN9Eh.rst
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FIX properly close leaking fds in concurrent.futures.ProcessPoolExecutor.

2
Misc/NEWS.d/next/Library/2018-03-12-19-58-25.bpo-33064.LO2KIY.rst
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lib2to3 now properly supports trailing commas after ``*args`` and
``**kwargs`` in function signatures.

2
Misc/NEWS.d/next/Library/2018-03-15-07-38-00.bpo-33078.RmjUF5.rst
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Fix the size handling in multiprocessing.Queue when a pickling error
occurs.

1
Misc/NEWS.d/next/Library/2018-03-16-16-07-33.bpo-33061.TRTTek.rst
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Add missing ``NoReturn`` to ``__all__`` in typing.py

4
Misc/NEWS.d/next/Library/2018-03-18-17-38-48.bpo-32953.t8WAWN.rst
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If a non-dataclass inherits from a frozen dataclass, allow attributes to be
added to the derived class. Only attributes from the frozen dataclass
cannot be assigned to. Require all dataclasses in a hierarchy to be either
all frozen or all non-frozen.

2
Misc/NEWS.d/next/Library/2018-03-19-20-47-00.bpo-33100.chyIO4.rst
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Dataclasses: If a field has a default value that's a MemberDescriptorType,
then it's from that field being in __slots__, not an actual default value.

2
Misc/NEWS.d/next/Library/2018-03-20-20-53-21.bpo-32896.ewW3Ln.rst
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Fix an error where subclassing a dataclass with a field that uses a
default_factory would generate an incorrect class.

1
Misc/NEWS.d/next/Library/2018-03-21-16-52-26.bpo-33116.Tvzerj.rst
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Add 'Field' to dataclasses.__all__.

1
Misc/NEWS.d/next/Library/2018-03-21-17-59-39.bpo-33078.PQOniT.rst
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Fix the failure on OSX caused by the tests relying on sem_getvalue

2
Misc/NEWS.d/next/Library/2018-03-22-16-05-56.bpo-32505.YK1N8v.rst
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Raise TypeError if a member variable of a dataclass is of type Field, but
doesn't have a type annotation.

1
Misc/NEWS.d/next/Library/2018-03-24-15-08-24.bpo-33127.olJmHv.rst
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The ssl module now compiles with LibreSSL 2.7.1.

3
Misc/NEWS.d/next/Library/2018-03-24-19-34-26.bpo-33134.hbVeIX.rst
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When computing dataclass's __hash__, use the lookup table to contain the
function which returns the __hash__ value. This is an improvement over
looking up a string, and then testing that string to see what to do.

3
Misc/NEWS.d/next/Library/2018-03-24-19-54-48.bpo-32873.cHyoAm.rst
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Treat type variables and special typing forms as immutable by copy and
pickle. This fixes several minor issues and inconsistencies, and improves
backwards compatibility with Python 3.6.

4
Misc/NEWS.d/next/Library/2018-03-25-13-18-16.bpo-33096.ofdbe7.rst
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Allow ttk.Treeview.insert to insert iid that has a false boolean value.
Note iid=0 and iid=False would be same.
Patch by Garvit Khatri.

2
Misc/NEWS.d/next/Library/2018-03-26-12-33-13.bpo-33141.23wlxf.rst
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Have Field objects pass through __set_name__ to their default values, if
they have their own __set_name__.

4
Misc/NEWS.d/next/Security/2018-03-02-10-24-52.bpo-32981.O_qDyj.rst
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Regexes in difflib and poplib were vulnerable to catastrophic backtracking.
These regexes formed potential DOS vectors (REDOS). They have been
refactored. This resolves CVE-2018-1060 and CVE-2018-1061.
Patch by Jamie Davis.

1
Misc/NEWS.d/next/Security/2018-03-05-10-09-51.bpo-33001.elj4Aa.rst
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Minimal fix to prevent buffer overrun in os.symlink on Windows

3
Misc/NEWS.d/next/Security/2018-03-25-12-05-43.bpo-33136.TzSN4x.rst
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Harden ssl module against LibreSSL CVE-2018-8970.
X509_VERIFY_PARAM_set1_host() is called with an explicit namelen. A new test
ensures that NULL bytes are not allowed.

1
Misc/NEWS.d/next/Tests/2018-01-08-13-33-47.bpo-19417.2asoXy.rst
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Add test_bdb.py.

2
Misc/NEWS.d/next/Tests/2018-03-09-07-05-12.bpo-32517.ugc1iW.rst
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Fix failing ``test_asyncio`` on macOS 10.12.2+ due to transport of
``KqueueSelector`` loop was not being closed.

1
Misc/NEWS.d/next/Tests/2018-03-28-01-35-02.bpo-32872.J5NDUj.rst
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Avoid regrtest compatibility issue with namespace packages.

2
Misc/NEWS.d/next/Tools-Demos/2018-02-20-12-16-47.bpo-32885.dL5x7C.rst
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Add an ``-n`` flag for ``Tools/scripts/pathfix.py`` to disbale automatic
backup creation (files with ``~`` suffix).

2
Misc/NEWS.d/next/Windows/2018-02-28-11-03-24.bpo-32903.1SXY4t.rst
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Fix a memory leak in os.chdir() on Windows if the current directory is set
to a UNC path.

1
Misc/NEWS.d/next/Windows/2018-03-07-01-33-33.bpo-33016.Z_Med0.rst
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Fix potential use of uninitialized memory in nt._getfinalpathname

5
Misc/NEWS.d/next/macOS/2018-03-29-06-56-12.bpo-32726.urS9uX.rst
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Build and link with private copy of Tcl/Tk 8.6 for the macOS 10.6+
installer. The 10.9+ installer variant already does this. This means that
the Python 3.7 provided by the python.org macOS installers no longer need or
use any external versions of Tcl/Tk, either system-provided or user-
installed, such as ActiveTcl.

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README.rst
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This is Python version 3.7.0 beta 2+ This is Python version 3.7.0 beta 3
==================================== ===================================
.. image:: https://travis-ci.org/python/cpython.svg?branch=master .. image:: https://travis-ci.org/python/cpython.svg?branch=master
:alt: CPython build status on Travis CI :alt: CPython build status on Travis CI