[Python-checkins] gh-145736: Fix Tkinter tests for Tk 8.7, 9.0 and 9.1 (GH-145738)

https://github.com/python/cpython/commit/77d6d5d8fcc8565034dac378b2184131af735512 commit: 77d6d5d8fcc8565034dac378b2184131af735512 branch: main author: Serhiy Storchaka committer: serhiy-storchaka date: 2026-03-11T21:01:03+02:00 summary: gh-145736: Fix Tkinter tests for Tk 8.7, 9.0 and 9.1 (GH-1

[Python-checkins] gh-142518: Improve mimalloc allocator docs (#145224)

https://github.com/python/cpython/commit/7a1da4575b1d8fa87efb62334a8e99cd513d86e9 commit: 7a1da4575b1d8fa87efb62334a8e99cd513d86e9 branch: main author: Lysandros Nikolaou committer: lysnikolaou date: 2026-03-11T15:14:47+01:00 summary: gh-142518: Improve mimalloc allocator docs (#145224) files:

[Python-checkins] [3.14] gh-142518: Improve mimalloc allocator docs (GH-145224) (#145823)

https://github.com/python/cpython/commit/717ebd7a36c66d7c148e776b8bd638948424960a commit: 717ebd7a36c66d7c148e776b8bd638948424960a branch: 3.14 author: Miss Islington (bot) <[email protected]> committer: lysnikolaou date: 2026-03-11T15:28:11+01:00 summary: [3.14] gh

[Python-checkins] gh-139933: correctly suggest attributes for classes with a custom `__dir__` (GH-139950)

https://github.com/python/cpython/commit/4722202a1a81974089801e6173d269836b6a074f commit: 4722202a1a81974089801e6173d269836b6a074f branch: main author: Bénédikt Tran <[email protected]> committer: ambv date: 2026-03-11T15:30:09+01:00 summary: gh-139933: correctly suggest a

[Python-checkins] [3.13] gh-99875: Document rounding mode for old-style formatting (GH-126382) (#145812)

https://github.com/python/cpython/commit/17a9c2691ef259ea12a1f3c5c0d1c97f815dc349 commit: 17a9c2691ef259ea12a1f3c5c0d1c97f815dc349 branch: 3.13 author: Miss Islington (bot) <[email protected]> committer: vstinner date: 2026-03-11T13:31:51Z summary: [3.13] gh-99875:

[Python-checkins] [3.14] gh-99875: Document rounding mode for old-style formatting (GH-126382) (#145811)

https://github.com/python/cpython/commit/f688a4bafd94a1b84eea4d9742dae949ff2c959b commit: f688a4bafd94a1b84eea4d9742dae949ff2c959b branch: 3.14 author: Miss Islington (bot) <[email protected]> committer: vstinner date: 2026-03-11T13:31:44Z summary: [3.14] gh-99875:

[Python-checkins] gh-141707: Skip TarInfo DIRTYPE normalization during GNU long name handling

https://github.com/python/cpython/commit/42d754e34c06e57ad6b8e7f92f32af679912d8ab commit: 42d754e34c06e57ad6b8e7f92f32af679912d8ab branch: main author: Seth Michael Larson committer: sethmlarson date: 2026-03-11T13:47:55Z summary: gh-141707: Skip TarInfo DIRTYPE normalization during GNU long nam

[Python-checkins] gh-145376: Fix refleak & pointer type bug in uncommon code paths in Parser/ (GH-145684)

https://github.com/python/cpython/commit/4f87c99a5ae9c74a5f94b91335d85f4662e1ed48 commit: 4f87c99a5ae9c74a5f94b91335d85f4662e1ed48 branch: main author: Pieter Eendebak committer: encukou date: 2026-03-11T14:24:15+01:00 summary: gh-145376: Fix refleak & pointer type bug in uncommon code paths in

[Python-checkins] gh-99875: Document rounding mode for old-style formatting (#126382)

https://github.com/python/cpython/commit/ce1abaf9b83f8535749c6d3d0a0fabf15d87079f commit: ce1abaf9b83f8535749c6d3d0a0fabf15d87079f branch: main author: Sergey B Kirpichev committer: vstinner date: 2026-03-11T14:25:24+01:00 summary: gh-99875: Document rounding mode for old-style formatting (#1263

[Python-checkins] gh-142183: Cache one datachunk per tstate to prevent alloc/dealloc thrashing (#145789)

https://github.com/python/cpython/commit/706fd4ec08acbf1b1def3630017ebe55d224adfa commit: 706fd4ec08acbf1b1def3630017ebe55d224adfa branch: main author: T. Wouters committer: Yhg1s date: 2026-03-11T15:46:16+01:00 summary: gh-142183: Cache one datachunk per tstate to prevent alloc/dealloc thrashin

[Python-checkins] [3.14] gh-139933: correctly suggest attributes for classes with a custom `__dir__` (GH-139950) (GH-145827)

https://github.com/python/cpython/commit/0a80015ac26d60bff54f57ce9f73ffc5386249b1 commit: 0a80015ac26d60bff54f57ce9f73ffc5386249b1 branch: 3.14 author: Łukasz Langa committer: ambv date: 2026-03-11T16:11:38+01:00 summary: [3.14] gh-139933: correctly suggest attributes for classes with a custom

[Python-checkins] gh-101100: Fix sphinx reference warnings around I/O (#139592)

https://github.com/python/cpython/commit/cf7c67b7c6b96527dfb0da2d6305923a92e3d766 commit: cf7c67b7c6b96527dfb0da2d6305923a92e3d766 branch: main author: Cody Maloney committer: hugovk <[email protected]> date: 2026-03-11T10:02:23+02:00 summary: gh-101100: Fix sphinx reference

[Python-checkins] [3.13] gh-101100: Fix sphinx reference warnings around I/O (GH-139592) (#145795)

https://github.com/python/cpython/commit/eec26ea9254ac327927e31d3ea39cf7e4e6dc1af commit: eec26ea9254ac327927e31d3ea39cf7e4e6dc1af branch: 3.13 author: Miss Islington (bot) <[email protected]> committer: hugovk <[email protected]> date: 2026-03-1

[Python-checkins] [3.14] gh-101100: Fix sphinx reference warnings around I/O (GH-139592) (#145794)

https://github.com/python/cpython/commit/f4d53321a7dc47370e891dd5d13923af1778bd37 commit: f4d53321a7dc47370e891dd5d13923af1778bd37 branch: 3.14 author: Miss Islington (bot) <[email protected]> committer: hugovk <[email protected]> date: 2026-03-1

[Python-checkins] gh-145492: fix regression test for defaultdict factory repr (GH-145788)

https://github.com/python/cpython/commit/aa4240ebea1aacc907b1efa58e7f547d90cff3b1 commit: aa4240ebea1aacc907b1efa58e7f547d90cff3b1 branch: main author: Thomas Kowalski committer: encukou date: 2026-03-11T14:02:23+01:00 summary: gh-145492: fix regression test for defaultdict factory repr (GH-1457

[Python-checkins] Add GitHub team for maintaining fuzzers

https://github.com/python/cpython/commit/805ca4f292ef18b89a2d25246feb916973acec64 commit: 805ca4f292ef18b89a2d25246feb916973acec64 branch: main author: Seth Michael Larson committer: sethmlarson date: 2026-03-11T13:51:25Z summary: Add GitHub team for maintaining fuzzers Co-authored-by: Stan Ulb

[Python-checkins] gh-141510: Raise TypeError in PyDict_SetItem() on frozendict (#145564)

https://github.com/python/cpython/commit/713be70175a2dad477a1cf5e7c00bab0edda04ad commit: 713be70175a2dad477a1cf5e7c00bab0edda04ad branch: main author: Victor Stinner committer: vstinner date: 2026-03-11T17:05:09+01:00 summary: gh-141510: Raise TypeError in PyDict_SetItem() on frozendict (#14556

[Python-checkins] gh-144540: Add _MAKE_HEAP_SAFE uop to eliminate unnecessary refcount operations in RETURN_VALUE and YIELD_VALUE (GH-144414)

https://github.com/python/cpython/commit/f062014d3876f1f81c0e60bf861c3460429ac3b4 commit: f062014d3876f1f81c0e60bf861c3460429ac3b4 branch: main author: Hai Zhu committer: markshannon date: 2026-03-11T20:24:19Z summary: gh-144540: Add _MAKE_HEAP_SAFE uop to eliminate unnecessary refcount operatio

[Python-checkins] GH-145247: Use _PyTuple_FromPair in Parser and Python (#145842)

https://github.com/python/cpython/commit/d19de375a204c74ab5f3a28ec42335bae139033d commit: d19de375a204c74ab5f3a28ec42335bae139033d branch: main author: Sergey Miryanov committer: pablogsal date: 2026-03-11T21:08:18Z summary: GH-145247: Use _PyTuple_FromPair in Parser and Python (#145842) Use _P

[Python-checkins] gh-145713: make bytearray.resize thread-safe on free-threading (#145714)

https://github.com/python/cpython/commit/c3955e049fd5dbd3d92bc95fed4442964156293d commit: c3955e049fd5dbd3d92bc95fed4442964156293d branch: main author: Thomas Kowalski committer: kumaraditya303 date: 2026-03-11T12:57:26+05:30 summary: gh-145713: make bytearray.resize thread-safe on free-threadin

[Python-checkins] gh-145546: unittest.util: fix `sorted_list_difference` tail deduplication (GH-145547)

https://github.com/python/cpython/commit/ece712197d2d23bcc80937d122e7b9f07338350e commit: ece712197d2d23bcc80937d122e7b9f07338350e branch: main author: Stefan Zetzsche <[email protected]> committer: encukou date: 2026-03-11T13:21:22+01:00 summary: gh-145546: unitte

[Python-checkins] Warn that overriding `__builtins__` for `eval` is not a security mechanism (GH-145773)

https://github.com/python/cpython/commit/eb9ae65e5b1cdfcf4f60d36c0353c857bc27b92f commit: eb9ae65e5b1cdfcf4f60d36c0353c857bc27b92f branch: main author: Stan Ulbrych <[email protected]> committer: encukou date: 2026-03-11T13:29:43+01:00 summary: Warn that overriding

[Python-checkins] gh-145587: fix busy loop in multiprocessing.connection.wait on Windows (GH-145597)

https://github.com/python/cpython/commit/5d6e8dd683b25348bfe45f6321f9734868199a23 commit: 5d6e8dd683b25348bfe45f6321f9734868199a23 branch: main author: Shrey Naithani committer: encukou date: 2026-03-11T13:08:48+01:00 summary: gh-145587: fix busy loop in multiprocessing.connection.wait on Window

[Python-checkins] gh-145685: Avoid contention on TYPE_LOCK in super() lookups (gh-145775)

https://github.com/python/cpython/commit/bdf6de8c3f0c2ec0d737f38014a32c1eed02c7f1 commit: bdf6de8c3f0c2ec0d737f38014a32c1eed02c7f1 branch: main author: Sam Gross committer: colesbury date: 2026-03-11T07:19:32-04:00 summary: gh-145685: Avoid contention on TYPE_LOCK in super() lookups (gh-145775)

[Python-checkins] gh-145633: Remove support for ancient ARM platforms with mixed-endian doubles (#145634)

https://github.com/python/cpython/commit/dae85c4d9393b706657a4eb1febc71647a5f544e commit: dae85c4d9393b706657a4eb1febc71647a5f544e branch: main author: Sergey B Kirpichev committer: vstinner date: 2026-03-11T12:39:24+01:00 summary: gh-145633: Remove support for ancient ARM platforms with mixed-e

[Python-checkins] [3.14] gh-145685: Avoid contention on TYPE_LOCK in super() lookups (gh-145775) (#145804)

https://github.com/python/cpython/commit/6d28aaf24d8e6406944cf96995e7b34b4b625eea commit: 6d28aaf24d8e6406944cf96995e7b34b4b625eea branch: 3.14 author: Sam Gross committer: colesbury date: 2026-03-11T11:50:13Z summary: [3.14] gh-145685: Avoid contention on TYPE_LOCK in super() lookups (gh-145775

[Python-checkins] [3.13] Warn that overriding `__builtins__` for `eval` is not a security mechanism (GH-145773) (GH-145807)

https://github.com/python/cpython/commit/3b5c4a2c13d72eb20b8f331617b890e1c880f70f commit: 3b5c4a2c13d72eb20b8f331617b890e1c880f70f branch: 3.13 author: Miss Islington (bot) <[email protected]> committer: encukou date: 2026-03-11T13:43:12+01:00 summary: [3.13] Warn t

[Python-checkins] [3.14] Warn that overriding `__builtins__` for `eval` is not a security mechanism (GH-145773) (GH-145808)

https://github.com/python/cpython/commit/6080c8660961940929901d56d4809bc7a91c9282 commit: 6080c8660961940929901d56d4809bc7a91c9282 branch: 3.14 author: Miss Islington (bot) <[email protected]> committer: encukou date: 2026-03-11T13:43:19+01:00 summary: [3.14] Warn t

[Python-checkins] [3.14] gh-145591: Move slicing note to __getitem__ (GH-145606) (GH-145760)

https://github.com/python/cpython/commit/ca8ca6bb0f5750ed6a4659c4c70b82cd213a0fe7 commit: ca8ca6bb0f5750ed6a4659c4c70b82cd213a0fe7 branch: 3.14 author: Miss Islington (bot) <[email protected]> committer: encukou date: 2026-03-11T13:58:03+01:00 summary: [3.14] gh-145

[Python-checkins] gh-145254: Add thread safety annotation in docs (#145255)

https://github.com/python/cpython/commit/0dce4c6eab9dcfcb44bb2739dc60c8ac5fa1ebad commit: 0dce4c6eab9dcfcb44bb2739dc60c8ac5fa1ebad branch: main author: Lysandros Nikolaou committer: kumaraditya303 date: 2026-03-12T12:18:43+05:30 summary: gh-145254: Add thread safety annotation in docs (#145255)

[Python-checkins] [3.13] gh-139933: correctly suggest attributes for classes with a custom `__dir__` (GH-139950) (GH-145827) (GH-145833)

https://github.com/python/cpython/commit/881cc06bac7d59a5bd8f4d49717e2e1d05fcc435 commit: 881cc06bac7d59a5bd8f4d49717e2e1d05fcc435 branch: 3.13 author: Łukasz Langa committer: ambv date: 2026-03-11T22:02:01+01:00 summary: [3.13] gh-139933: correctly suggest attributes for classes with a custom

[Python-checkins] [3.14] gh-145736: Fix Tkinter tests for Tk 8.7, 9.0 and 9.1 (GH-145738) (GH-145841)

https://github.com/python/cpython/commit/a778fd600445f78a6f3f9bc97d44a9096a220ff0 commit: a778fd600445f78a6f3f9bc97d44a9096a220ff0 branch: 3.14 author: Serhiy Storchaka committer: serhiy-storchaka date: 2026-03-12T02:41:14+02:00 summary: [3.14] gh-145736: Fix Tkinter tests for Tk 8.7, 9.0 and 9.