* zlib uses an UINT32_MAX sliding window for the output buffer
These funtions have an initial output buffer size parameter:
- zlib.decompress(data, /, wbits=MAX_WBITS, bufsize=DEF_BUF_SIZE)
- zlib.Decompress.flush([length])
If the initial size > UINT32_MAX, use an UINT32_MAX sliding window, instead of clamping to UINT32_MAX.
Speed up when (the initial size == the actual size).
This fixes a memory consumption and copying performance regression in earlier 3.10 beta releases if someone used an output buffer larger than 4GiB with zlib.decompress.
Reviewed-by: Gregory P. Smith
(cherry picked from commit a9a69bb3ea)
Co-authored-by: Ma Lin <animalize@users.noreply.github.com>
I tried to be relatively thorough and give lots of links.
One reason is that this wasn't deprecated very long; also it seems people running into this tend to not be familiar with similar APIs.
(cherry picked from commit 29987f7265)
Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
Sync with importlib_metadata 4.6.
(cherry picked from commit efe7d08d17)
Co-authored-by: Jason R. Coombs <jaraco@jaraco.com>
Co-authored-by: Jason R. Coombs <jaraco@jaraco.com>
Py_RunMain() now resets PyImport_Inittab to its initial value at
exit. It must be possible to call PyImport_AppendInittab() or
PyImport_ExtendInittab() at each Python initialization.
(cherry picked from commit 489699ca05)
It defaults to None and is positional only.
(cherry picked from commit d1ae57027f)
Co-authored-by: Dennis Sweeney <36520290+sweeneyde@users.noreply.github.com>
No longer use len() to get the length of the input data. For some buffer protocol objects,
the length obtained by using len() is wrong.
(cherry picked from commit bc6c12c72a)
Co-authored-by: Ma Lin <animalize@users.noreply.github.com>
* bpo-44458: Ensure BUFFER_BLOCK_SIZE symbol is statically allocated.
(cherry picked from commit 92c2e91580)
Co-authored-by: Russell Keith-Magee <russell@keith-magee.com>
Fix asyncio test_popen() of test_windows_utils by using a longer
timeout. Use military grade battle-tested test.support.SHORT_TIMEOUT
timeout rather than a hardcoded timeout of 10 seconds: it's 30
seconds by default, but it is made longer on slow buildbots.
WaitForMultipleObjects() timeout argument is in milliseconds.
(cherry picked from commit be1cb3214d)
Co-authored-by: Victor Stinner <vstinner@python.org>
Put entry in Design FAQ after a question about a context manager for assignment.
Original patch by Aidan Lowe.
(cherry picked from commit 51f45d085d)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
_thread.start_new_thread() no longer calls PyThread_exit_thread()
explicitly at the thread exit, the call was redundant.
On Linux with the glibc, pthread_cancel() loads dynamically the
libgcc_s.so.1 library. dlopen() can fail if there is no more
available file descriptor to open the file. In this case, the process
aborts with the error message:
"libgcc_s.so.1 must be installed for pthread_cancel to work"
pthread_cancel() unwinds back to the thread's wrapping function that
calls the thread entry point.
The unwind function is dynamically loaded from the libgcc_s library
since it is tightly coupled to the C compiler (GCC). The unwinder
depends on DWARF, the compiler generates DWARF, so the unwinder
belongs to the compiler.
Thanks Florian Weimer and Carlos O'Donell for their help on
investigating this issue.
(cherry picked from commit 45a78f906d)
Co-authored-by: Victor Stinner <vstinner@python.org>
The faulthandler module now detects if a fatal error occurs during a
garbage collector collection (only if all_threads is true).
(cherry picked from commit d19163912b)
This avoids the following error if DeprecationWarnings are ignored.
======================================================================
ERROR: test_entry_points_by_index (test.test_importlib.test_metadata_api.APITests)
Prior versions of Distribution.entry_points would return a
----------------------------------------------------------------------
Traceback (most recent call last):
File "/builddir/build/BUILD/Python-3.10.0b3/Lib/test/test_importlib/test_metadata_api.py", line 145, in test_entry_points_by_index
expected = next(iter(caught))
StopIteration
----------------------------------------------------------------------
Ran 1402 tests in 2.125s
FAILED (errors=1, skipped=18, expected failures=1)
(cherry picked from commit df1502e47f)
Co-authored-by: Miro Hrončok <miro@hroncok.cz>
* Remove struct _node from the stable ABI list
This struct was removed along with the old parser in Python 3.9 (PEP 617)
* Stable ABI list: Use the public name "PyFrameObject" rather than "_frame"
* Ensure limited API doesn't contain private names
Names prefixed by an underscore are private by definition.
* Add a blurb
(cherry picked from commit 7cad9cb51b)
Co-authored-by: Petr Viktorin <encukou@gmail.com>
The threading.enumerate() function now uses a reentrant lock to
prevent a hang on reentrant call.
(cherry picked from commit 243fd01047)
Co-authored-by: Victor Stinner <vstinner@python.org>
The _thread.RLock type now fully implement the GC protocol: add a
traverse function and the Py_TPFLAGS_HAVE_GC flag.
(cherry picked from commit 1cd3d859a4)
Co-authored-by: Victor Stinner <vstinner@python.org>
The function uses distutils.text_file.TextFile and therefore
behaves differently than _parse_makefile in sysconfig.
(cherry picked from commit fc98266ff6)
Co-authored-by: Lumír 'Frenzy' Balhar <lbalhar@redhat.com>
They were originally removed in GH-10173 per bpo-35089, but then
readded in GH-21574. Cf. bpo-38291 for decision to remove.
(cherry picked from commit 8a76683cfb)
Co-authored-by: Sebastian Rittau <srittau@rittau.biz>
Signed-off-by: Christian Heimes <christian@python.org>
(cherry picked from commit bf527277d4)
Co-authored-by: Christian Heimes <christian@python.org>
Automerge-Triggered-By: GH:tiran
