mirror of
https://github.com/python/cpython.git
synced 2026-05-06 04:37:33 -04:00
Hugo van Kemenade
943 lines
20 KiB
ReStructuredText
943 lines
20 KiB
ReStructuredText
.. date: 2025-12-25-00-38-20
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.. gh-issue: 143082
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.. nonce: CYUeux
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.. release date: 2026-01-14
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.. section: Windows
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Fix :mod:`pdb` arrow key history not working when ``stdin`` is
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``sys.stdin``.
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..
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.. date: 2025-09-14-13-35-44
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.. gh-issue: 128067
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.. nonce: BGdP_A
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.. section: Windows
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Fix a bug in PyREPL on Windows where output without a trailing newline was
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overwritten by the next prompt.
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..
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.. date: 2026-01-02-11-44-56
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.. gh-issue: 142095
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.. nonce: 4ssgnM
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.. section: Tools/Demos
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Make gdb 'py-bt' command use frame from thread local state when available.
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Patch by Sam Gross and Victor Stinner.
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..
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.. date: 2026-01-09-13-52-10
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.. gh-issue: 143460
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.. nonce: _nW2jt
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.. section: Tests
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Skip tests relying on infinite recusion if stack size is unlimited.
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..
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.. date: 2026-01-08-11-50-06
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.. gh-issue: 143553
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.. nonce: KyyNTt
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.. section: Tests
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Add support for parametrized resources, such as ``-u xpickle=2.7``.
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..
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.. bpo: 31391
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.. date: 2020-09-29-23-14-01
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.. nonce: IZr2P8
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.. section: Tests
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Forward-port test_xpickle from Python 2 to Python 3 and add the resource
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back to test's command line.
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..
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.. date: 2026-01-12-07-17-38
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.. gh-issue: 143706
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.. nonce: sysArgv
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.. section: Library
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Fix :mod:`multiprocessing` forkserver so that :data:`sys.argv` is correctly
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set before ``__main__`` is preloaded. Previously, :data:`sys.argv` was empty
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during main module import in forkserver child processes. This fixes a
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regression introduced in 3.13.8 and 3.14.1. Root caused by Aaron Wieczorek,
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test provided by Thomas Watson, thanks!
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..
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.. date: 2026-01-10-16-42-47
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.. gh-issue: 143638
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.. nonce: du5G7d
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.. section: Library
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Forbid reentrant calls of the :class:`pickle.Pickler` and
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:class:`pickle.Unpickler` methods for the C implementation. Previously, this
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could cause crash or data corruption, now concurrent calls of methods of the
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same object raise :exc:`RuntimeError`.
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..
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.. date: 2026-01-10-15-40-57
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.. gh-issue: 143658
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.. nonce: Ox6pE5
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.. section: Library
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:mod:`importlib.metadata`: Use :meth:`str.translate` to improve performance
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of :meth:`!importlib.metadata.Prepared.normalize`. Patch by Hugo van
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Kemenade and Henry Schreiner.
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..
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.. date: 2026-01-10-10-04-08
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.. gh-issue: 78724
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.. nonce: xkXfxX
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.. section: Library
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Raise :exc:`RuntimeError`'s when user attempts to call methods on
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half-initialized :class:`~struct.Struct` objects, For example, created by
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``Struct.__new__(Struct)``. Patch by Sergey B Kirpichev.
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..
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.. date: 2026-01-09-17-50-26
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.. gh-issue: 143196
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.. nonce: WxKxzU
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.. section: Library
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Fix crash when the internal encoder object returned by undocumented function
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:func:`!json.encoder.c_make_encoder` was called with non-zero second
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(*_current_indent_level*) argument.
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..
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.. date: 2026-01-09-13-07-22
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.. gh-issue: 143191
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.. nonce: PPR_vW
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.. section: Library
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:func:`_thread.stack_size` now raises :exc:`ValueError` if the stack size is
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too small. Patch by Victor Stinner.
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..
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.. date: 2026-01-08-14-53-46
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.. gh-issue: 143547
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.. nonce: wHBVlr
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.. section: Library
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Fix :func:`sys.unraisablehook` when the hook raises an exception and changes
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:func:`sys.unraisablehook`: hold a strong reference to the old hook. Patch
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by Victor Stinner.
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..
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.. date: 2026-01-08-13-41-58
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.. gh-issue: 139686
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.. nonce: S_nzkl
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.. section: Library
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Revert 0a97941245f1dda6d838f9aaf0512104e5253929 and
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57db12514ac686f0a752ec8fe1c08b6daa0c6219 which made importlib.reload a no-op
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for lazy modules; caused Buildbot failures.
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..
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.. date: 2026-01-07-15-49-06
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.. gh-issue: 143517
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.. nonce: FP5KgL
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.. section: Library
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:func:`annotationlib.get_annotations` no longer raises a :exc:`SyntaxError`
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when evaluating a stringified starred annotation that starts with one or
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more whitespace characters followed by a ``*``. Patch by Bartosz Sławecki.
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..
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.. date: 2026-01-06-12-00-00
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.. gh-issue: 143474
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.. nonce: cQM4VA
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.. section: Library
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Add :data:`os.RWF_ATOMIC` constant for Linux 6.11+.
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..
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.. date: 2026-01-05-12-20-42
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.. gh-issue: 143445
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.. nonce: rgxnbL
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.. section: Library
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Speed up :func:`copy.deepcopy` by 1.04x.
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..
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.. date: 2026-01-03-19-41-36
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.. gh-issue: 143378
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.. nonce: 29AvE7
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.. section: Library
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Fix use-after-free crashes when a :class:`~io.BytesIO` object is
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concurrently mutated during :meth:`~io.RawIOBase.write` or
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:meth:`~io.IOBase.writelines`.
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..
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.. date: 2026-01-02-17-26-33
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.. gh-issue: 143368
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.. nonce: m3EF9E
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.. section: Library
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Fix endless retry loop in :mod:`profiling.sampling` blocking mode when
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threads cannot be seized due to ``EPERM``. Such threads are now skipped
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instead of causing repeated error messages. Patch by Pablo Galindo.
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..
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.. date: 2026-01-02-12-55-52
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.. gh-issue: 143346
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.. nonce: iTekce
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.. section: Library
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Fix incorrect wrapping of the Base64 data in :class:`!plistlib._PlistWriter`
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when the indent contains a mix of tabs and spaces.
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..
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.. date: 2026-01-02-09-32-43
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.. gh-issue: 140025
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.. nonce: zOX58_
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.. section: Library
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:mod:`queue`: Fix :meth:`!SimpleQueue.__sizeof__` computation.
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..
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.. date: 2026-01-01-11-21-57
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.. gh-issue: 143310
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.. nonce: 8rxtH3
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.. section: Library
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:mod:`tkinter`: fix a crash when a Python :class:`list` is mutated during
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the conversion to a Tcl object (e.g., when setting a Tcl variable). Patch by
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Bénédikt Tran.
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..
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.. date: 2025-12-31-20-43-02
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.. gh-issue: 143309
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.. nonce: cdFxdH
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.. section: Library
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Fix a crash in :func:`os.execve` on non-Windows platforms when given a
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custom environment mapping which is then mutated during parsing. Patch by
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Bénédikt Tran.
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..
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.. date: 2025-12-31-17-38-33
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.. gh-issue: 143308
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.. nonce: lY8UCR
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.. section: Library
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:mod:`pickle`: fix use-after-free crashes when a
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:class:`~pickle.PickleBuffer` is concurrently mutated by a custom buffer
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callback during pickling. Patch by Bénédikt Tran and Aaron Wieczorek.
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..
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.. date: 2025-12-29-21-12-12
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.. gh-issue: 142939
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.. nonce: OyQQr5
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.. section: Library
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Performance optimisations for :func:`difflib.get_close_matches`
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..
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.. date: 2025-12-29-00-42-26
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.. gh-issue: 124951
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.. nonce: OsC5K4
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.. section: Library
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The base64 implementation behind the :mod:`binascii`, :mod:`base64`, and
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related codec has been optimized for modern pipelined CPU architectures and
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now performs 2-3x faster across all platforms.
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..
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.. date: 2025-12-28-20-28-05
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.. gh-issue: 143237
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.. nonce: q1ymuA
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.. section: Library
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Fix support of named pipes in the rotating :mod:`logging` handlers.
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..
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.. date: 2025-12-28-14-41-02
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.. gh-issue: 143249
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.. nonce: K4vEp4
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.. section: Library
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Fix possible buffer leaks in Windows overlapped I/O on error handling.
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..
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.. date: 2025-12-28-13-49-06
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.. gh-issue: 143241
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.. nonce: 5H4b8d
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.. section: Library
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:mod:`zoneinfo`: fix infinite loop in :meth:`ZoneInfo.from_file
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<zoneinfo.ZoneInfo.from_file>` when parsing a malformed TZif file. Patch by
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Fatih Celik.
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..
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.. date: 2025-12-28-13-12-40
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.. gh-issue: 142830
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.. nonce: uEyd6r
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.. section: Library
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:mod:`sqlite3`: fix use-after-free crashes when the connection's callbacks
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are mutated during a callback execution. Patch by Bénédikt Tran.
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..
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.. date: 2025-12-27-15-41-27
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.. gh-issue: 143200
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.. nonce: 2hEUAl
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.. section: Library
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:mod:`xml.etree.ElementTree`: fix use-after-free crashes in
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:meth:`~object.__getitem__` and :meth:`~object.__setitem__` methods of
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:class:`~xml.etree.ElementTree.Element` when the element is concurrently
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mutated. Patch by Bénédikt Tran.
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..
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.. date: 2025-12-27-13-47-59
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.. gh-issue: 143214
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.. nonce: gf6nZK
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.. section: Library
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Add the *wrapcol* parameter in :func:`binascii.b2a_base64` and
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:func:`base64.b64encode`.
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..
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.. date: 2025-12-27-00-14-56
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.. gh-issue: 142195
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.. nonce: UgBEo5
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.. section: Library
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Updated timeout evaluation logic in :mod:`subprocess` to be compatible with
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deterministic environments like Shadow where time moves exactly as
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requested.
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..
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.. date: 2025-12-26-14-51-50
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.. gh-issue: 140739
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.. nonce: BAbZTo
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.. section: Library
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Fix several crashes due to reading invalid memory in the new Tachyon
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sampling profiler. Patch by Pablo Galindo.
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..
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.. date: 2025-12-25-08-58-55
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.. gh-issue: 142164
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.. nonce: XrFztf
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.. section: Library
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Fix the ctypes bitfield overflow error message to report the correct offset
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and size calculation.
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..
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.. date: 2025-12-24-14-18-52
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.. gh-issue: 143145
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.. nonce: eXLw8D
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.. section: Library
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Fixed a possible reference leak in ctypes when constructing results with
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multiple output parameters on error.
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..
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.. date: 2025-12-23-17-07-22
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.. gh-issue: 143103
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.. nonce: LRjXEW
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.. section: Library
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Add padding support to :func:`base64.z85encode` via the ``pad`` parameter.
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..
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.. date: 2025-12-23-11-43-05
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.. gh-issue: 130796
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.. nonce: TkzUGx
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.. section: Library
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Undeprecate the :func:`locale.getdefaultlocale` function. Patch by Victor
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Stinner.
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..
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.. date: 2025-12-22-18-25-54
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.. gh-issue: 74902
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.. nonce: HqrWUV
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.. section: Library
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Add the :func:`~unicodedata.iter_graphemes` function in the
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:mod:`unicodedata` module to iterate over grapheme clusters according to
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rules defined in `Unicode Standard Annex #29, "Unicode Text Segmentation"
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<https://www.unicode.org/reports/tr29/>`_. Add
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:func:`~unicodedata.grapheme_cluster_break`,
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:func:`~unicodedata.indic_conjunct_break` and
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:func:`~unicodedata.extended_pictographic` functions to get the properties
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of the character which are related to the above algorithm.
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..
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.. date: 2025-12-22-00-00-00
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.. gh-issue: 143004
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.. nonce: uaf-counter
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.. section: Library
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Fix a potential use-after-free in :meth:`collections.Counter.update` when
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user code mutates the Counter during an update.
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..
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.. date: 2025-12-21-17-24-29
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.. gh-issue: 140648
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.. nonce: i8dca6
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.. section: Library
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The :mod:`asyncio` REPL now respects the :option:`-I` flag (isolated mode).
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Previously, it would load and execute :envvar:`PYTHONSTARTUP` even if the
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flag was set. Contributed by Bartosz Sławecki.
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..
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.. date: 2025-12-20-10-21-23
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.. gh-issue: 142991
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.. nonce: jYHD9E
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.. section: Library
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Fixed socket operations such as recvfrom() and sendto() for FreeBSD
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divert(4) socket.
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..
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.. date: 2025-12-19-12-38-01
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.. gh-issue: 116738
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.. nonce: iMt3Ol
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.. section: Library
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Make the attributes in :mod:`lzma` thread-safe on the :term:`free threaded
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<free threading>` build.
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..
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.. date: 2025-12-18-22-58-46
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.. gh-issue: 142950
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.. nonce: EJ8w-T
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.. section: Library
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Fix regression in :mod:`argparse` where format specifiers in help strings
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raised :exc:`ValueError`.
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..
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.. date: 2025-12-17-20-18-17
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.. gh-issue: 142881
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.. nonce: 5IizIQ
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.. section: Library
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Fix concurrent and reentrant call of :func:`atexit.unregister`.
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..
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.. date: 2025-12-12-08-51-29
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.. gh-issue: 142615
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.. nonce: GoJ6el
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.. section: Library
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Fix possible crashes when initializing :class:`asyncio.Task` or
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:class:`asyncio.Future` multiple times. These classes can now be initialized
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only once and any subsequent initialization attempt will raise a
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RuntimeError. Patch by Kumar Aditya.
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..
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.. date: 2025-12-10-10-00-06
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.. gh-issue: 142517
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.. nonce: fG4hbe
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.. section: Library
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The non-``compat32`` :mod:`email` policies now correctly handle refolding
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encoded words that contain bytes that can not be decoded in their specified
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character set. Previously this resulted in an encoding exception during
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folding.
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..
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.. date: 2025-12-06-19-49-20
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.. gh-issue: 138122
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.. nonce: m3EF9E
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.. section: Library
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The Tachyon profiler's live TUI now integrates with the experimental
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:mod:`!_colorize` theming system. Users can customize colors via
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:func:`!_colorize.set_theme` (experimental API, subject to change). A
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:class:`!LiveProfilerLight` theme is provided for light terminal
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backgrounds. Patch by Pablo Galindo.
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..
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.. date: 2025-12-05-17-22-25
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.. gh-issue: 142306
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.. nonce: Gj3_1m
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.. section: Library
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Improve errors for :meth:`Element.remove
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<xml.etree.ElementTree.Element.remove>`.
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..
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.. date: 2025-10-04-20-48-02
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.. gh-issue: 63016
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.. nonce: EC9QN_
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.. section: Library
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Add a ``flags`` parameter to :meth:`mmap.mmap.flush` to control
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synchronization behavior.
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..
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.. date: 2025-09-23-16-41-21
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.. gh-issue: 139262
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.. nonce: RO0E98
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.. section: Library
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Some keystrokes can be swallowed in the new ``PyREPL`` on Windows,
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especially when used together with the ALT key. Fix by Chris Eibl.
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..
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.. date: 2025-09-14-22-26-50
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.. gh-issue: 138897
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.. nonce: vnUb_L
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.. section: Library
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Improved :data:`license`/:data:`copyright`/:data:`credits` display in the
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:term:`REPL`: now uses a pager.
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..
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.. date: 2025-08-17-00-28-50
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.. gh-issue: 135852
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.. nonce: lQqOjQ
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.. section: Library
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Add :func:`!_winapi.RegisterEventSource`,
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:func:`!_winapi.DeregisterEventSource` and :func:`!_winapi.ReportEvent`.
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Using these functions in :class:`~logging.handlers.NTEventLogHandler` to
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replace :mod:`!pywin32`.
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..
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|
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.. date: 2025-06-22-18-57-19
|
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.. gh-issue: 109263
|
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.. nonce: f92V95
|
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.. section: Library
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|
|
Starting a process from spawn context in :mod:`multiprocessing` no longer
|
|
sets the start method globally.
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|
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..
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.. date: 2025-04-19-17-34-11
|
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.. gh-issue: 132715
|
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.. nonce: XXl47F
|
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.. section: Library
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|
|
Skip writing objects during marshalling once a failure has occurred.
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..
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|
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.. date: 2025-10-30-19-28-42
|
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.. gh-issue: 140806
|
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.. nonce: RBT9YH
|
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.. section: Documentation
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|
|
Add documentation for :func:`enum.bin`.
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|
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..
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|
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.. date: 2026-01-12-22-49-36
|
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.. gh-issue: 134584
|
|
.. nonce: guDlsj
|
|
.. section: Core and Builtins
|
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|
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Eliminate redundant refcounting from ``_CONTAINS_OP``, ``_CONTAINS_OP_SET``
|
|
and ``_CONTAINS_OP_DICT``.
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|
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..
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|
|
.. date: 2026-01-10-17-13-04
|
|
.. gh-issue: 143604
|
|
.. nonce: BygbVT
|
|
.. section: Core and Builtins
|
|
|
|
Fix a reference counting issue in the JIT tracer where the current executor
|
|
could be prematurely freed during tracing.
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|
|
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..
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|
|
.. date: 2026-01-06-12-30-03
|
|
.. gh-issue: 143469
|
|
.. nonce: vHVhEY
|
|
.. section: Core and Builtins
|
|
|
|
Enable :opcode:`!LOAD_ATTR_MODULE` specialization even if
|
|
:func:`!__getattr__` is defined in module.
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|
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..
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|
|
.. date: 2026-01-04-23-53-42
|
|
.. gh-issue: 134584
|
|
.. nonce: CNrxI_
|
|
.. section: Core and Builtins
|
|
|
|
Eliminate redundant refcounting from ``TO_BOOL_STR``.
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|
|
..
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|
|
.. date: 2026-01-04-16-56-17
|
|
.. gh-issue: 143377
|
|
.. nonce: YJqMCa
|
|
.. section: Core and Builtins
|
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|
|
Fix a crash in :func:`!_interpreters.capture_exception` when the exception
|
|
is incorrectly formatted. Patch by Bénédikt Tran.
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|
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..
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|
|
.. date: 2026-01-04-11-08-20
|
|
.. gh-issue: 139757
|
|
.. nonce: AR6LG0
|
|
.. section: Core and Builtins
|
|
|
|
Add ``BINARY_OP_SUBSCR_USTR_INT`` to specialize reading an ASCII character
|
|
from any string. Patch by Chris Eibl.
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|
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..
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|
|
.. date: 2026-01-03-15-44-51
|
|
.. gh-issue: 141504
|
|
.. nonce: sbnJlM
|
|
.. section: Core and Builtins
|
|
|
|
Factor out tracing and optimization heuristics into a single object. Patch
|
|
by Donghee Na.
|
|
|
|
..
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|
|
.. date: 2026-01-03-14-47-49
|
|
.. gh-issue: 142982
|
|
.. nonce: 0lAtc7
|
|
.. section: Core and Builtins
|
|
|
|
Specialize :opcode:`CALL_FUNCTION_EX` for Python and non-Python callables.
|
|
|
|
..
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|
|
|
.. date: 2026-01-03-14-02-11
|
|
.. gh-issue: 136924
|
|
.. nonce: UMgdPn
|
|
.. section: Core and Builtins
|
|
|
|
The interactive help mode in the :term:`REPL` no longer incorrectly syntax
|
|
highlights text input as Python code. Contributed by Olga Matoula.
|
|
|
|
..
|
|
|
|
.. date: 2026-01-02-22-35-12
|
|
.. gh-issue: 139757
|
|
.. nonce: v5LRew
|
|
.. section: Core and Builtins
|
|
|
|
Fix unintended bytecode specialization for non-ascii string. Patch by
|
|
Donghee Na, Ken Jin and Chris Eibl.
|
|
|
|
..
|
|
|
|
.. date: 2026-01-02-17-11-16
|
|
.. gh-issue: 143361
|
|
.. nonce: YDnvdC
|
|
.. section: Core and Builtins
|
|
|
|
Add ``PY_VECTORCALL_ARGUMENTS_OFFSET`` to
|
|
``_Py_CallBuiltinClass_StackRefSteal`` to avoid redundant allocations
|
|
|
|
..
|
|
|
|
.. date: 2026-01-01-23-41-50
|
|
.. gh-issue: 131798
|
|
.. nonce: QUqDdK
|
|
.. section: Core and Builtins
|
|
|
|
The JIT optimizer now understands more generator instructions.
|
|
|
|
..
|
|
|
|
.. date: 2026-01-01-17-01-24
|
|
.. gh-issue: 134584
|
|
.. nonce: nis8LC
|
|
.. section: Core and Builtins
|
|
|
|
Eliminate redundant refcounting from ``_LOAD_ATTR_SLOT``.
|
|
|
|
..
|
|
|
|
.. date: 2025-12-30-06-48-48
|
|
.. gh-issue: 143189
|
|
.. nonce: in_sv2
|
|
.. section: Core and Builtins
|
|
|
|
Fix crash when inserting a non-:class:`str` key into a split table
|
|
dictionary when the key matches an existing key in the split table but has
|
|
no corresponding value in the dict.
|
|
|
|
..
|
|
|
|
.. date: 2025-12-27-23-57-43
|
|
.. gh-issue: 143228
|
|
.. nonce: m3EF9E
|
|
.. section: Core and Builtins
|
|
|
|
Fix use-after-free in perf trampoline when toggling profiling while threads
|
|
are running or during interpreter finalization with daemon threads active.
|
|
The fix uses reference counting to ensure trampolines are not freed while
|
|
any code object could still reference them. Pach by Pablo Galindo
|
|
|
|
..
|
|
|
|
.. date: 2025-12-27-13-18-12
|
|
.. gh-issue: 142664
|
|
.. nonce: peeEDV
|
|
.. section: Core and Builtins
|
|
|
|
Fix a use-after-free crash in :meth:`memoryview.__hash__ <object.__hash__>`
|
|
when the ``__hash__`` method of the referenced object mutates that object or
|
|
the view. Patch by Bénédikt Tran.
|
|
|
|
..
|
|
|
|
.. date: 2025-12-27-12-25-06
|
|
.. gh-issue: 142557
|
|
.. nonce: KWOc8b
|
|
.. section: Core and Builtins
|
|
|
|
Fix a use-after-free crash in :ref:`bytearray.__mod__ <bytes-formatting>`
|
|
when the :class:`!bytearray` is mutated while formatting the ``%``-style
|
|
arguments. Patch by Bénédikt Tran.
|
|
|
|
..
|
|
|
|
.. date: 2025-12-27-10-14-26
|
|
.. gh-issue: 143195
|
|
.. nonce: MNldfr
|
|
.. section: Core and Builtins
|
|
|
|
Fix use-after-free crashes in :meth:`bytearray.hex` and
|
|
:meth:`memoryview.hex` when the separator's :meth:`~object.__len__` mutates
|
|
the original object. Patch by Bénédikt Tran.
|
|
|
|
..
|
|
|
|
.. date: 2025-12-26-11-00-44
|
|
.. gh-issue: 143183
|
|
.. nonce: rhxzZr
|
|
.. section: Core and Builtins
|
|
|
|
Fix a bug in the JIT when dealing with unsupported control-flow or
|
|
operations.
|
|
|
|
..
|
|
|
|
.. date: 2025-12-24-13-44-24
|
|
.. gh-issue: 142975
|
|
.. nonce: 8C4vIP
|
|
.. section: Core and Builtins
|
|
|
|
Fix crash after unfreezing all objects tracked by the garbage collector on
|
|
the :term:`free threaded <free threading>` build.
|
|
|
|
..
|
|
|
|
.. date: 2025-12-24-11-39-59
|
|
.. gh-issue: 143135
|
|
.. nonce: 3d5ovx
|
|
.. section: Core and Builtins
|
|
|
|
Set :data:`sys.flags.inspect` to ``1`` when :envvar:`PYTHONINSPECT` is
|
|
``0``. Previously, it was set to ``0`` in this case.
|
|
|
|
..
|
|
|
|
.. date: 2025-12-23-23-36-41
|
|
.. gh-issue: 143123
|
|
.. nonce: -51gt_
|
|
.. section: Core and Builtins
|
|
|
|
Protect the JIT against recursive tracing.
|
|
|
|
..
|
|
|
|
.. date: 2025-12-23-23-06-11
|
|
.. gh-issue: 143092
|
|
.. nonce: 6MISbb
|
|
.. section: Core and Builtins
|
|
|
|
Fix a crash in the JIT when dealing with ``list.append(x)`` style code.
|
|
|
|
..
|
|
|
|
.. date: 2025-12-23-00-13-02
|
|
.. gh-issue: 143003
|
|
.. nonce: 92g5qW
|
|
.. section: Core and Builtins
|
|
|
|
Fix an overflow of the shared empty buffer in :meth:`bytearray.extend` when
|
|
``__length_hint__()`` returns 0 for non-empty iterator.
|
|
|
|
..
|
|
|
|
.. date: 2025-12-22-22-37-53
|
|
.. gh-issue: 143006
|
|
.. nonce: ZBQwbN
|
|
.. section: Core and Builtins
|
|
|
|
Fix a possible assertion error when comparing negative non-integer ``float``
|
|
and ``int`` with the same number of bits in the integer part.
|
|
|
|
..
|
|
|
|
.. date: 2025-12-22-16-22-02
|
|
.. gh-issue: 116738
|
|
.. nonce: caQuq_
|
|
.. section: Core and Builtins
|
|
|
|
Fix thread safety of :func:`contextvars.Context.run`.
|
|
|
|
..
|
|
|
|
.. date: 2025-12-17-19-45-10
|
|
.. gh-issue: 142829
|
|
.. nonce: ICtLXy
|
|
.. section: Core and Builtins
|
|
|
|
Fix a use-after-free crash in :class:`contextvars.Context` comparison when a
|
|
custom ``__eq__`` method modifies the context via
|
|
:meth:`~contextvars.ContextVar.set`.
|
|
|
|
..
|
|
|
|
.. date: 2025-12-17-10-12-09
|
|
.. gh-issue: 142863
|
|
.. nonce: ZW2ZF8
|
|
.. section: Core and Builtins
|
|
|
|
Generate optimized bytecode when calling :class:`list` or :class:`set` with
|
|
generator expression.
|
|
|
|
..
|
|
|
|
.. date: 2025-11-19-20-42-21
|
|
.. gh-issue: 41779
|
|
.. nonce: Psz9Vo
|
|
.. section: Core and Builtins
|
|
|
|
Allowed defining any :ref:`__slots__ <slots>` for a class derived from
|
|
:class:`tuple` (including classes created by
|
|
:func:`collections.namedtuple`).
|
|
|
|
..
|
|
|
|
.. date: 2025-09-30-21-59-56
|
|
.. gh-issue: 69605
|
|
.. nonce: qcmGF3
|
|
.. section: Core and Builtins
|
|
|
|
Fix edge-cases around already imported modules in the :term:`REPL`
|
|
auto-completion of imports.
|
|
|
|
..
|
|
|
|
.. date: 2025-09-06-08-29-08
|
|
.. gh-issue: 138568
|
|
.. nonce: iZlalC
|
|
.. section: Core and Builtins
|
|
|
|
Adjusted the built-in :func:`help` function so that empty inputs are ignored
|
|
in interactive mode.
|
|
|
|
..
|
|
|
|
.. date: 2025-08-10-12-46-36
|
|
.. gh-issue: 131798
|
|
.. nonce: 5ys0H_
|
|
.. section: Core and Builtins
|
|
|
|
Remove bounds check when indexing into tuples with a constant index.
|
|
|
|
..
|
|
|
|
.. date: 2025-06-23-20-54-15
|
|
.. gh-issue: 134584
|
|
.. nonce: ZNcziF
|
|
.. section: Core and Builtins
|
|
|
|
Eliminate redundant refcounting from ``_CALL_TYPE_1``. Patch by Tomas Roun
|
|
|
|
..
|
|
|
|
.. date: 2025-04-04-20-38-29
|
|
.. gh-issue: 132108
|
|
.. nonce: UwZIQy
|
|
.. section: Core and Builtins
|
|
|
|
Speed up :meth:`int.from_bytes` when passed object supports :ref:`buffer
|
|
protocol <bufferobjects>`, like :class:`bytearray` by ~1.2x.
|
|
|
|
..
|
|
|
|
.. date: 2024-12-29-21-33-08
|
|
.. gh-issue: 128334
|
|
.. nonce: 3c5Nou
|
|
.. section: Core and Builtins
|
|
|
|
Make the :class:`slice` class subscriptable at runtime to be consistent with
|
|
typing implementation.
|
|
|
|
..
|
|
|
|
.. date: 2025-11-17-17-46-16
|
|
.. gh-issue: 141671
|
|
.. nonce: cVXNW5
|
|
.. section: C API
|
|
|
|
:c:macro:`PyMODINIT_FUNC` (and the new :c:macro:`PyMODEXPORT_FUNC`) now adds
|
|
a linkage declaration (``__declspec(dllexport)``) on Windows.
|