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2 months ago[3.13] gh-84424: Use numeric_changed for UCD.numeric (GH-19457) (GH-144732)
Serhiy Storchaka [Thu, 12 Feb 2026 08:35:09 +0000 (10:35 +0200)] 
[3.13] gh-84424: Use numeric_changed for UCD.numeric (GH-19457) (GH-144732)

This was causing ucd_3_2_0.numeric() to pick up only decimal
changes between Unicode 3.2.0 and the current version.
(cherry picked from commit 3e0322ff16f47caa3e273d453f007d3918b8ac80)

Co-authored-by: William Meehan <wmeehan@fb.com>
2 months ago[3.13] Itertools recipes: Replace the tabulate() example with running_mean() (gh...
Stan Ulbrych [Thu, 12 Feb 2026 06:24:00 +0000 (06:24 +0000)] 
[3.13] Itertools recipes:  Replace the tabulate() example with running_mean() (gh-144483) (gh-144722)

2 months ago[3.13] gh-142518: Define lock-free and per-object lock (GH-144548) (#144707)
Lysandros Nikolaou [Wed, 11 Feb 2026 17:08:49 +0000 (18:08 +0100)] 
[3.13] gh-142518: Define lock-free and per-object lock (GH-144548) (#144707)

(cherry picked from commit 12dbae4c02dac197330d5bfa650b495e962aba6d)

2 months ago[3.13] gh-106318: Improve str.rstrip() method doc (GH-143893) (#144698)
Miss Islington (bot) [Wed, 11 Feb 2026 08:48:28 +0000 (09:48 +0100)] 
[3.13] gh-106318: Improve str.rstrip() method doc (GH-143893) (#144698)

gh-106318: Improve str.rstrip() method doc (GH-143893)
(cherry picked from commit 936d60dbe1679f05d7ceb0a6d1f65bc741390ac6)

Co-authored-by: Adorilson Bezerra <adorilson@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
2 months ago[3.13] gh-143650: Fix importlib race condition on import failure (GH-143651) (#144697)
Gregory P. Smith [Wed, 11 Feb 2026 06:37:25 +0000 (22:37 -0800)] 
[3.13] gh-143650: Fix importlib race condition on import failure (GH-143651) (#144697)

gh-143650: Fix importlib race condition on import failure (GH-143651)

Fix a race condition where a thread could receive a partially-initialized
module when another thread's import fails. The race occurs when:

1. Thread 1 starts importing, adds module to sys.modules
2. Thread 2 sees the module in sys.modules via the fast path
3. Thread 1's import fails, removes module from sys.modules
4. Thread 2 returns a stale module reference not in sys.modules

The fix adds verification after the "skip lock" optimization in both Python
and C code paths to check if the module is still in sys.modules. If the
module was removed (due to import failure), we retry the import so the
caller receives the actual exception from the import failure rather than
a stale module reference.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
cherry picked from ac8b5b6890006ee7254ea878866cb486ff835ecb

2 months ago[3.13] gh-138744: Skip test_dtrace on Windows (GH-144657) (#144668)
Miss Islington (bot) [Tue, 10 Feb 2026 14:54:27 +0000 (15:54 +0100)] 
[3.13] gh-138744: Skip test_dtrace on Windows (GH-144657) (#144668)

[3.14] gh-138744: Skip test_dtrace on Windows (GH-144657)
(cherry picked from commit 8b4210c30e218b3533d5d5494dfcaf9f081fb384)

Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Ken Jin <kenjin@python.org>
2 months ago[3.13] Clarify the docs for `args` in asyncio callbacks (GH-143873) (#144664)
Miss Islington (bot) [Tue, 10 Feb 2026 13:16:12 +0000 (14:16 +0100)] 
[3.13] Clarify the docs for `args` in asyncio callbacks (GH-143873) (#144664)

Clarify the docs for `args` in asyncio callbacks (GH-143873)
(cherry picked from commit 40a82abe9335e78e34ca564243499490e50b8888)

Co-authored-by: Aarni Koskela <akx@iki.fi>
Co-authored-by: Kumar Aditya <kumaraditya@python.org>
2 months ago[3.13] gh-143543: Fix re-entrant use-after-free in itertools.groupby (GH-143738)...
Miss Islington (bot) [Tue, 10 Feb 2026 13:01:23 +0000 (14:01 +0100)] 
[3.13] gh-143543: Fix re-entrant use-after-free in itertools.groupby (GH-143738) (GH-144627)

(cherry picked from commit a91b5c3fb5aeaeda6a8e016378beb0e4a8b329e6)

Co-authored-by: VanshAgarwal24036 <148854295+VanshAgarwal24036@users.noreply.github.com>
Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
2 months ago[3.13] gh-144363: Update bundled libexpat to 2.7.4 (GH-144365) (GH-144500)
Miss Islington (bot) [Tue, 10 Feb 2026 12:59:12 +0000 (13:59 +0100)] 
[3.13] gh-144363: Update bundled libexpat to 2.7.4 (GH-144365) (GH-144500)

(cherry picked from commit d5cb9f6a9b6f48cc08c4422259498d4fd023357a)

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
Co-authored-by: Gregory P. Smith <greg@krypto.org>
2 months ago[3.13] gh-131261: generate_sbom.py: Exclude the refresh script from SBOM (GH-131359...
Petr Viktorin [Tue, 10 Feb 2026 09:49:00 +0000 (10:49 +0100)] 
[3.13] gh-131261: generate_sbom.py: Exclude the refresh script from SBOM (GH-131359) (GH-144625)

- generate_sbom.py: Exclude the refresh script from SBOM
- Modules/expat/refresh.sh: Expand the list of manual steps

(cherry picked from commit 51d309988b3041cae20cca89172b4fd825c9a1cc)

2 months ago[3.13] Disable pip version check when upgrading certifi (GH-144632) (#144640)
Miss Islington (bot) [Tue, 10 Feb 2026 03:22:12 +0000 (04:22 +0100)] 
[3.13] Disable pip version check when upgrading certifi (GH-144632) (#144640)

(cherry picked from commit 80ba4e10f5070e6d2e35618e08057be44f913965)

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
2 months ago[3.13] gh-144492: Fix `process_changed_files` outputs for `reusable-{macos, wasi...
Miss Islington (bot) [Mon, 9 Feb 2026 18:16:33 +0000 (19:16 +0100)] 
[3.13] gh-144492: Fix `process_changed_files` outputs for `reusable-{macos, wasi}.yml` (GH-144518) (#144634)

gh-144492: Fix `process_changed_files` outputs for `reusable-{macos, wasi}.yml` (GH-144518)

Fix `process_changed_files` double-processing reusable-{macos, wasi] ending up with incorrect outputs
(cherry picked from commit fd190d1fa1a34bb8d533d05263ea744a051b7529)

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
2 months ago[3.13] gh-106318: Add examples for str.partition() method (GH-142823) (#144612)
Miss Islington (bot) [Sun, 8 Feb 2026 22:16:49 +0000 (23:16 +0100)] 
[3.13] gh-106318: Add examples for str.partition() method (GH-142823) (#144612)

gh-106318: Add examples for str.partition() method (GH-142823)
(cherry picked from commit 432ddd99e2b06a75a4f47bd99c0fd0c911bdb19c)

Co-authored-by: Adorilson Bezerra <adorilson@gmail.com>
2 months ago[3.13] gh-106318: Add example for str.isalnum() (GH-137550) (#144610)
Miss Islington (bot) [Sun, 8 Feb 2026 22:15:45 +0000 (23:15 +0100)] 
[3.13] gh-106318: Add example for str.isalnum() (GH-137550) (#144610)

gh-106318: Add example for str.isalnum() (GH-137550)
(cherry picked from commit 3dd7a3c65ad4ac330ad44a519efa017484530e1a)

Co-authored-by: Adorilson Bezerra <adorilson@gmail.com>
2 months ago[3.13] For `enum.bin`, update versionadded directive from 3.10 to 3.11 (GH-144574...
Miss Islington (bot) [Sun, 8 Feb 2026 07:43:22 +0000 (08:43 +0100)] 
[3.13] For `enum.bin`, update versionadded directive from 3.10 to 3.11 (GH-144574) (#144589)

For `enum.bin`, update versionadded directive from 3.10 to 3.11 (GH-144574)
(cherry picked from commit d73634935cb9ce00a57dcacbd2e56371e4c18451)

Co-authored-by: Guo Ci <zguoci@gmail.com>
2 months ago[3.13] gh-143700: document `secrets.DEFAULT_ENTROPY` as an opaque value (GH-144568...
Miss Islington (bot) [Sat, 7 Feb 2026 22:44:03 +0000 (23:44 +0100)] 
[3.13] gh-143700: document `secrets.DEFAULT_ENTROPY` as an opaque value (GH-144568) (#144580)

gh-143700: document `secrets.DEFAULT_ENTROPY` as an opaque value (GH-144568)
(cherry picked from commit 934997218e55714003276a70090a710cb3beeb61)

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
2 months ago[3.13] gh-142044: Add note to prefer `asyncio.timeout[_at]` over `asyncio.Timeout...
Miss Islington (bot) [Sat, 7 Feb 2026 12:31:35 +0000 (13:31 +0100)] 
[3.13] gh-142044: Add note to prefer `asyncio.timeout[_at]` over `asyncio.Timeout` (GH-144449) (#144566)

gh-142044: Add note to prefer `asyncio.timeout[_at]` over `asyncio.Timeout` (GH-144449)
(cherry picked from commit 0e7c06a85880ba790fac4239b0ff1052399a36ae)

Co-authored-by: kovan <xaum.io@gmail.com>
2 months ago[3.13] gh-144538: Upgrade bundled pip to 26.0.1 (gh-144556) (#144561)
Miss Islington (bot) [Sat, 7 Feb 2026 12:22:54 +0000 (13:22 +0100)] 
[3.13] gh-144538: Upgrade bundled pip to 26.0.1 (gh-144556) (#144561)

gh-144538: Upgrade bundled pip to 26.0.1 (gh-144556)

Upgrade bundled pip to 26.0.1
(cherry picked from commit f4364a51c1a8ce682fe9e4e96c6aba9f1b590422)

Co-authored-by: Damian Shaw <damian.peter.shaw@gmail.com>
2 months ago[3.13] gh-144330: Initialize classmethod and staticmethod in new (GH-144498) (#144537)
Miss Islington (bot) [Fri, 6 Feb 2026 09:48:55 +0000 (10:48 +0100)] 
[3.13] gh-144330: Initialize classmethod and staticmethod in new (GH-144498) (#144537)

[3.14] gh-144330: Initialize classmethod and staticmethod in new (GH-144498)

gh-144330: Initialize classmethod and staticmethod in new

Initialize cm_callable and sm_callable to None in classmethod and
staticmethod constructor.
(cherry picked from commit 160810de89477836f2fde7139f7ab0670399efff)

Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Aniket Singh Yadav <singhyadavaniket43@gmail.com>
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
2 months ago[3.13] gh-144484: Warn users not to use wsgiref in production (#144512)
Miss Islington (bot) [Thu, 5 Feb 2026 16:22:07 +0000 (17:22 +0100)] 
[3.13] gh-144484: Warn users not to use wsgiref in production (#144512)

gh-144484: Warn users not to use wsgiref in production
(cherry picked from commit 7e777c587f01434ac5eea3d63d096f191278dad2)

Co-authored-by: Seth Michael Larson <seth@python.org>
2 months ago[3.13] gh-144148: Update the urllib.parse documentation (GH-144497) (GH-144507) ...
Miss Islington (bot) [Thu, 5 Feb 2026 15:47:52 +0000 (16:47 +0100)] 
[3.13] gh-144148: Update the urllib.parse documentation (GH-144497) (GH-144507) (GH-144509)

(cherry picked from commit 2fb9cde118b1c5c96d9c9ce24f886d683e8c3ebb)

Document urlsplit() as the main parsing function and urlparse() as
an obsolete variant.
(cherry picked from commit 67ddba9aa9c0405c68e691643c4aa75fdbcefe1d)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
2 months ago[3.13] gh-106318: Add examples for `str.startswith()` method (GH-144369) (#144480)
Miss Islington (bot) [Wed, 4 Feb 2026 17:24:35 +0000 (18:24 +0100)] 
[3.13] gh-106318: Add examples for `str.startswith()` method (GH-144369) (#144480)

gh-106318: Add examples for `str.startswith()` method (GH-144369)
(cherry picked from commit 1b6d737ee0205521333cf5fe6ca6df2d3a6d4ec2)

Co-authored-by: Adorilson Bezerra <adorilson@gmail.com>
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
2 months ago[3.13] gh-141004: Document remaining `pyport.h` utility macros (GH-144279) (GH-144478)
Miss Islington (bot) [Wed, 4 Feb 2026 16:49:59 +0000 (17:49 +0100)] 
[3.13] gh-141004: Document remaining `pyport.h` utility macros (GH-144279) (GH-144478)

gh-141004: Document remaining `pyport.h` utility macros (GH-144279)
(cherry picked from commit 914fbec21458a0344468734489f29254033fafc5)

Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
2 months ago[3.13] gh-141444: Replace dead URL in urllib.robotparser example (GH-144443) (#144465)
Miss Islington (bot) [Wed, 4 Feb 2026 11:36:32 +0000 (12:36 +0100)] 
[3.13] gh-141444: Replace dead URL in urllib.robotparser example (GH-144443) (#144465)

Co-authored-by: kovan <217326+kovan@users.noreply.github.com>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
2 months agoPost 3.13.12
Thomas Wouters [Tue, 3 Feb 2026 21:47:48 +0000 (22:47 +0100)] 
Post 3.13.12

2 months agoPython 3.13.12 v3.13.12
Thomas Wouters [Tue, 3 Feb 2026 17:53:04 +0000 (18:53 +0100)] 
Python 3.13.12

2 months ago[3.13] gh-127313: Use getLogger() without argument to get root logger in logging...
Miss Islington (bot) [Tue, 3 Feb 2026 14:55:25 +0000 (15:55 +0100)] 
[3.13] gh-127313: Use getLogger() without argument to get root logger in logging cookbook (GH-143683) (GH-144432)

gh-127313: Use getLogger() without argument to get root logger in logging cookbook (GH-143683)

Use getLogger() to get root logger in logging cookbook
(cherry picked from commit 53fecbe6e116a4426058b7d0f6c451719c72cb5b)

Co-authored-by: AN Long <aisk@users.noreply.github.com>
2 months ago[3.13] gh-74453: Add stronger security warning to os.path.commonprefix
Miss Islington (bot) [Tue, 3 Feb 2026 14:16:28 +0000 (15:16 +0100)] 
[3.13] gh-74453: Add stronger security warning to os.path.commonprefix

gh-74453: Add stronger security warning to os.path.commonprefix (GH-144401)
(cherry picked from commit 4e15b8d95da9a0f58ad58283979c37e43ff61229)

Co-authored-by: Seth Michael Larson <seth@python.org>
2 months ago[3.13] gh-106318: Add examples for str.rindex() method (GH-143887) (#144422)
Miss Islington (bot) [Tue, 3 Feb 2026 13:36:32 +0000 (14:36 +0100)] 
[3.13] gh-106318: Add examples for str.rindex() method (GH-143887) (#144422)

gh-106318: Add examples for str.rindex() method (GH-143887)
(cherry picked from commit 45d00a0791a53f07c0050b985c936281ed825d9b)

Co-authored-by: Adorilson Bezerra <adorilson@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
2 months ago[3.13] gh-75572: Speed up test_xpickle (GH-144393) (GH-144404)
Miss Islington (bot) [Tue, 3 Feb 2026 10:40:48 +0000 (11:40 +0100)] 
[3.13] gh-75572: Speed up test_xpickle (GH-144393) (GH-144404)

Run a long living subprocess which handles multiple requests instead of
running a new subprocess for each request.
(cherry picked from commit 29acc08c8dad664cd5713cb392e5beba65724c10)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
2 months ago[3.13] gh-144415: Android testbed fixes (GH-142912) (#144417)
Miss Islington (bot) [Tue, 3 Feb 2026 09:28:43 +0000 (10:28 +0100)] 
[3.13] gh-144415: Android testbed fixes (GH-142912) (#144417)

Modifies handling of `.gz` files in Android app payloads, and ensures that
when the Android testbed streams logs, stream flushes aren't treated as
newlines. This improves the output of test suites that use "one dot per test"
progress indicators.
(cherry picked from commit cb1dc91dcb1eb6637d1c79b34a0bab728939f717)

Co-authored-by: Malcolm Smith <smith@chaquo.com>
2 months ago[3.13] gh-140806: add docs for `enum.bin` function (#140807) (#143740)
Guo Ci [Mon, 2 Feb 2026 21:57:53 +0000 (16:57 -0500)] 
[3.13] gh-140806: add docs for `enum.bin` function (#140807) (#143740)

(cherry picked from commit 7f50a5febd7af7259237a78dc533e9f9f274d51c)

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
2 months ago[3.13] gh-142555: Fix null pointer dereference in array.__setitem__ via re-entrant...
Miss Islington (bot) [Mon, 2 Feb 2026 20:06:59 +0000 (21:06 +0100)] 
[3.13] gh-142555: Fix null pointer dereference in array.__setitem__ via re-entrant __index__ (GH-142713) (#144397)

gh-142555: Fix null pointer dereference in array.__setitem__ via re-entrant __index__ (GH-142713)
(cherry picked from commit 39f16a93ef7b39c3fc5a1a5b706512168baee499)

Co-authored-by: AN Long <aisk@users.noreply.github.com>
2 months ago[3.13] gh-129401: Test repr rlock failing randomly (GH-129959) (#144405)
Miss Islington (bot) [Mon, 2 Feb 2026 19:11:03 +0000 (20:11 +0100)] 
[3.13] gh-129401: Test repr rlock failing randomly (GH-129959) (#144405)

Fix and simplify a test of `test_repr_rlock` about multiprocessing.RLock primitive.
(cherry picked from commit a98a6bd1128663fbe58c0c73d468710245a57ad6)

Co-authored-by: Duprat <yduprat@gmail.com>
2 months ago[3.13] gh-144376: Only run 'address' fuzzer for python3-libraries (GH-144398) (#144400)
Stan Ulbrych [Mon, 2 Feb 2026 16:51:05 +0000 (16:51 +0000)] 
[3.13] gh-144376: Only run 'address' fuzzer for python3-libraries (GH-144398) (#144400)

(cherry picked from commit 5f91577cdd09bc604001ccfc164042ddbe486a81)

Co-authored-by: Seth Michael Larson <seth@python.org>
2 months ago[3.13] gh-144380: Fix incorrect type check in `buffered_iternext()` (GH-144381) ...
Miss Islington (bot) [Mon, 2 Feb 2026 10:29:16 +0000 (11:29 +0100)] 
[3.13] gh-144380: Fix incorrect type check in `buffered_iternext()` (GH-144381) (#144390)

gh-144380: Fix incorrect type check in `buffered_iternext()` (GH-144381)
(cherry picked from commit 40d07cad38bf3ce60f4ca03f1836e8650fe40df5)

Co-authored-by: Ruiyang Ke <me@ry.ke>
2 months ago[3.13] gh-144307: Fix a reference leak during module teardown (GH-144308) (GH-144328)
Peter Bierma [Thu, 29 Jan 2026 19:18:39 +0000 (11:18 -0800)] 
[3.13] gh-144307: Fix a reference leak during module teardown (GH-144308) (GH-144328)

(cherry picked from commit 219b7ac9d562701bbde21d7e17845c4942b83338)

Signed-off-by: Yongtao Huang <yongtaoh2022@gamil.com>
Co-authored-by: Yongtao Huang <yongtaoh2022@gmail.com>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
2 months ago[3.13] gh-142387: Reduce Android testbed API level to 33 (GH-144315) (#144318)
Miss Islington (bot) [Thu, 29 Jan 2026 00:42:13 +0000 (01:42 +0100)] 
[3.13] gh-142387: Reduce Android testbed API level to 33 (GH-144315) (#144318)

The emulator images for API level 34 and 35 have significant issues with image size and
internet connectivity. Reverts the default API level used for testbed testing to 33.
(cherry picked from commit 6543720b63a62363de540deb5a6701f1ae431bce)

Co-authored-by: Malcolm Smith <smith@chaquo.com>
2 months ago[3.13] gh-144194: Fix mmap failure check in perf_jit_trampoline.c (#143713) (#144304)
Victor Stinner [Wed, 28 Jan 2026 14:15:39 +0000 (15:15 +0100)] 
[3.13] gh-144194: Fix mmap failure check in perf_jit_trampoline.c (#143713) (#144304)

gh-144194: Fix mmap failure check in perf_jit_trampoline.c (#143713)

mmap() returns MAP_FAILED ((void*)-1) on error, not NULL. The current
check never detects mmap failures, so jitdump initialization proceeds
even when the memory mapping fails.

(cherry picked from commit 8fe8a94a7c050bc16cac9ec300f89c0f389f9a44)

Co-authored-by: stratakis <cstratak@redhat.com>
2 months ago[3.13] gh-144169: Fix three crashes in AST objects with non-str kwargs (GH-144178...
Jelle Zijlstra [Wed, 28 Jan 2026 04:37:35 +0000 (20:37 -0800)] 
[3.13] gh-144169: Fix three crashes in AST objects with non-str kwargs (GH-144178) (#144260)

(cherry picked from commit 639c1ad4f1ef5c2409a62fa8ed16e6aa3a6f9ab8)

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
2 months ago[3.13] gh-144257: document return values of PyModule_SetDocString (GH-144258) (GH...
Nathan Goldbaum [Tue, 27 Jan 2026 18:30:48 +0000 (11:30 -0700)] 
[3.13] gh-144257: document return values of PyModule_SetDocString (GH-144258) (GH-144286)

(cherry picked from commit 3e9a5b022f01fa95b4485fcf2c0c87bfb9fff837)

Co-authored-by: sobolevn <mail@sobolevn.me>
2 months ago[3.13] gh-144100: Fix crash for POINTER(str) used in ctypes argtypes (#144108) (...
Victor Stinner [Tue, 27 Jan 2026 11:59:55 +0000 (12:59 +0100)] 
[3.13] gh-144100: Fix crash for POINTER(str) used in ctypes argtypes (#144108) (#144245)

gh-144100: Fix crash for POINTER(str) used in ctypes argtypes (#144108)

(cherry picked from commit 8f459255eba2b6639f1912e5c5e318a7cdafada1)

Co-authored-by: VanshAgarwal24036 <148854295+VanshAgarwal24036@users.noreply.github.com>
2 months ago[3.13] gh-142119: Clarify that one `contextvars.Token` can only reset once in a lifet...
Miss Islington (bot) [Tue, 27 Jan 2026 10:39:20 +0000 (11:39 +0100)] 
[3.13] gh-142119: Clarify that one `contextvars.Token` can only reset once in a lifetime (GH-143693) (GH-144267)

(cherry picked from commit 487bd2dea538e36cb620dd9e0f298d731b9ede8a)

Co-authored-by: Bartosz Sławecki <bartosz@ilikepython.com>
2 months ago[3.13] gh-126014: test_makefile_test_folders: Ignore basically-empty directories...
Miss Islington (bot) [Tue, 27 Jan 2026 10:28:09 +0000 (11:28 +0100)] 
[3.13] gh-126014: test_makefile_test_folders: Ignore basically-empty directories (GH-140466) (#144268)

gh-126014: test_makefile_test_folders: Ignore basically-empty directories (GH-140466)

The code in test_makefile was attempting to ignore any
non-interesting files, but missed some corners:

1. There is never a *file* called `__pycache__`.
2. A directory containing only a `__pycache__` subdirectory should be
   ignored.
3. A directory containing only hidden files should be ignored.

Simplify this all into a couple of filters that let us check for empty
lists.
(cherry picked from commit 17d447e993a0ff9b7d44786ceb2a8f9510638bfa)

Co-authored-by: Stefano Rivera <stefano@rivera.za.net>
2 months ago[3.13] gh-101888: Add function.__builtins__ to ref documentation (GH-144174) (#144253)
Miss Islington (bot) [Mon, 26 Jan 2026 16:22:31 +0000 (17:22 +0100)] 
[3.13] gh-101888: Add function.__builtins__ to ref documentation (GH-144174) (#144253)

gh-101888: Add function.__builtins__ to ref documentation (GH-144174)
(cherry picked from commit 933540e33217474abee3e1b53dec28ad927b6311)

Co-authored-by: Victor Stinner <vstinner@python.org>
2 months ago[3.13] gh-127773: Disable attribute cache on incompatible MRO entries (GH-127924...
Petr Viktorin [Mon, 26 Jan 2026 15:31:52 +0000 (16:31 +0100)] 
[3.13] gh-127773: Disable attribute cache on incompatible MRO entries (GH-127924) (GH-143729)

2 months ago[3.13] gh-143928: Remove outdated comparison between pickle and marshal regarding...
Miss Islington (bot) [Mon, 26 Jan 2026 13:45:22 +0000 (14:45 +0100)] 
[3.13] gh-143928: Remove outdated comparison between pickle and marshal regarding recursion (GH-144025) (#144247)

gh-143928: Remove outdated comparison between pickle and marshal regarding recursion (GH-144025)
(cherry picked from commit 923d9d2ac23b583a7fb66e2867d8dcc07fec9a40)

Co-authored-by: Yashraj <yashrajpala8@gmail.com>
2 months ago[3.13] gh-144233: Fix typo in os.eventfd documentation (GH-144234) (#144237)
Miss Islington (bot) [Mon, 26 Jan 2026 08:16:06 +0000 (09:16 +0100)] 
[3.13] gh-144233: Fix typo in os.eventfd documentation (GH-144234) (#144237)

gh-144233: Fix typo in os.eventfd documentation (GH-144234)
(cherry picked from commit 99821474336187eaf657740c4eb618044d83b9c7)

Co-authored-by: Solomon Ritzow <11698787+ritzow@users.noreply.github.com>
2 months ago[3.13] gh-143935: Email preserve parens when folding comments (GH-143936) (#144035)
Miss Islington (bot) [Sun, 25 Jan 2026 17:09:53 +0000 (18:09 +0100)] 
[3.13] gh-143935: Email preserve parens when folding comments (GH-143936) (#144035)

gh-143935: Email preserve parens when folding comments (GH-143936)

Fix a bug in the folding of comments when flattening an email message
using a modern email policy. Comments consisting of a very long sequence of
non-foldable characters could trigger a forced line wrap that omitted the
required leading space on the continuation line, causing the remainder of
the comment to be interpreted as a new header field. This enabled header
injection with carefully crafted inputs.
(cherry picked from commit 17d1490aa97bd6b98a42b1a9b324ead84e7fd8a2)

Co-authored-by: Seth Michael Larson <seth@python.org>
Co-authored-by: Denis Ledoux <dle@odoo.com>
2 months ago[3.13] gh-143237: Fix support of named pipes in the rotating logging handlers (GH...
Miss Islington (bot) [Sun, 25 Jan 2026 17:09:40 +0000 (18:09 +0100)] 
[3.13] gh-143237: Fix support of named pipes in the rotating logging handlers (GH-143259) (#143298)

gh-143237: Fix support of named pipes in the rotating logging handlers (GH-143259)

This fixes regression introduced in GH-105887.
(cherry picked from commit aa8a43d179bad5cd9fbfce63b630e2ee0bd617e4)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
2 months ago[3.13] gh-144125: email: verify headers are sound in BytesGenerator (#144181)
Miss Islington (bot) [Sun, 25 Jan 2026 17:09:26 +0000 (18:09 +0100)] 
[3.13] gh-144125: email: verify headers are sound in BytesGenerator (#144181)

gh-144125: email: verify headers are sound in BytesGenerator
(cherry picked from commit 052e55e7d44718fe46cbba0ca995cb8fcc359413)

Co-authored-by: Seth Michael Larson <seth@python.org>
Co-authored-by: Denis Ledoux <dle@odoo.com>
Co-authored-by: Denis Ledoux <5822488+beledouxdenis@users.noreply.github.com>
Co-authored-by: Petr Viktorin <302922+encukou@users.noreply.github.com>
Co-authored-by: Bas Bloemsaat <1586868+basbloemsaat@users.noreply.github.com>
2 months ago[3.13] gh-143919: Reject control characters in http cookies (#144090)
Miss Islington (bot) [Sun, 25 Jan 2026 17:09:22 +0000 (18:09 +0100)] 
[3.13] gh-143919: Reject control characters in http cookies (#144090)

gh-143919: Reject control characters in http cookies
(cherry picked from commit 95746b3a13a985787ef53b977129041971ed7f70)

Co-authored-by: Seth Michael Larson <seth@python.org>
Co-authored-by: Bartosz Sławecki <bartosz@ilikepython.com>
Co-authored-by: sobolevn <mail@sobolevn.me>
2 months ago[3.13] Programming FAQ: fix some punctuaction typos (GH-144058) (#144186)
Miss Islington (bot) [Sun, 25 Jan 2026 17:09:04 +0000 (18:09 +0100)] 
[3.13] Programming FAQ: fix some punctuaction typos (GH-144058) (#144186)

Programming FAQ: fix some punctuaction typos (GH-144058)

(cherry picked from commit 03e651d601c7d54ffe93ef1bbd4f66fafb89eded)

Co-authored-by: Bartosz Sławecki <bartosz@ilikepython.com>
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
2 months ago[3.13] gh-143925: Reject control characters in data: URL mediatypes (#144111)
Seth Michael Larson [Sun, 25 Jan 2026 17:06:01 +0000 (11:06 -0600)] 
[3.13] gh-143925: Reject control characters in data: URL mediatypes (#144111)

(cherry picked from commit f25509e78e8be6ea73c811ac2b8c928c28841b9f)

2 months ago[3.13] gh-142461: Move misplaced NEWS entries to an appropriate section (GH-143392...
Stan Ulbrych [Sat, 24 Jan 2026 15:13:13 +0000 (15:13 +0000)] 
[3.13] gh-142461: Move misplaced NEWS entries to an appropriate section (GH-143392) (GH-144153)

(cherry picked from commit 72bacb0cd0882bce6bd7e9e2e4e9c112d70213e7)

Co-authored-by: Aniket <148300120+Aniketsy@users.noreply.github.com>
2 months ago[3.13] gh-135142: Initial 3.15 News3.txt entries (GH-144200) (#144202)
Terry Jan Reedy [Sat, 24 Jan 2026 03:16:21 +0000 (22:16 -0500)] 
[3.13] gh-135142: Initial 3.15 News3.txt entries (GH-144200) (#144202)

(cherry picked from commit 29f1e778faaa31479e4ef84e2fb37a7a53984550)

2 months ago[3.13] gh-144027: Fix documentation for ignorechars in base64.a85decode() (GH-144028...
Miss Islington (bot) [Fri, 23 Jan 2026 19:19:22 +0000 (20:19 +0100)] 
[3.13] gh-144027: Fix documentation for ignorechars in base64.a85decode() (GH-144028) (GH-144193)

It does not support an ASCII string.

Also add more tests.
(cherry picked from commit 25a10b60b04ab2fa802409dc6f211cf2ca028a0a)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
2 months ago[3.13] Doc: fix incorrect reference in `isasyncgenfunction` docs (GH-144099) (GH...
Miss Islington (bot) [Fri, 23 Jan 2026 10:35:27 +0000 (11:35 +0100)] 
[3.13] Doc: fix incorrect reference in `isasyncgenfunction` docs (GH-144099) (GH-144171)

(cherry picked from commit f3dd0cae6cea38b15b42b20d39c7142a4a0f716e)

Co-authored-by: Yongtao Huang <yongtaoh2022@gmail.com>
2 months ago[3.13] gh-142779: Initialize reserved field for proper padding (GH-142780) (#144160)
Miss Islington (bot) [Thu, 22 Jan 2026 17:29:57 +0000 (18:29 +0100)] 
[3.13] gh-142779: Initialize reserved field for proper padding (GH-142780) (#144160)

gh-142779: Initialize reserved field for proper padding (GH-142780)

The jitdump specification specifies a reserved field for padding.

Initialize it so no garbage data is embedded in the jitdump files.
(cherry picked from commit 77bf4ba732a8736910bd6b7ec5a58b8ee833c95f)

Co-authored-by: stratakis <cstratak@redhat.com>
2 months ago[3.13] gh-144023: Prevent `follow_symlinks` from being allowed with an fd of 0 (GH...
Stan Ulbrych [Thu, 22 Jan 2026 15:52:49 +0000 (15:52 +0000)] 
[3.13] gh-144023: Prevent `follow_symlinks` from being allowed with an fd of 0 (GH-144022) (#144152)

[3.13] gh-144023: Prevent follow_symlinks from being allowed with an fd of 0 (GH-144022)

The check was (fd > 0), should be (fd >= 0).
(cherry picked from commit fa44efa0ef1972ac1e2f66996303154be11f605e)

Co-authored-by: AZero13 <gfunni234@gmail.com>
2 months ago[3.13] gh-141004: Mark up constants for `PyOS_double_to_string` (GH-143867) (GH-144147)
Miss Islington (bot) [Thu, 22 Jan 2026 12:30:31 +0000 (13:30 +0100)] 
[3.13] gh-141004: Mark up constants for `PyOS_double_to_string` (GH-143867) (GH-144147)

gh-141004: Mark up constants for `PyOS_double_to_string` (GH-143867)

This ensures they show up as C macros in search and the Sphinx inventory.
(cherry picked from commit fb690c38cafb15e4ccddc52aba37f9470ce201a0)

Co-authored-by: Petr Viktorin <encukou@gmail.com>
2 months ago[3.13] gh-77188: Add pickle tests for objects with slots (GH-144116) (GH-144120)
Miss Islington (bot) [Thu, 22 Jan 2026 11:26:48 +0000 (12:26 +0100)] 
[3.13] gh-77188: Add pickle tests for objects with slots (GH-144116) (GH-144120)

(cherry picked from commit cf71e34940e2314ee7ca00961d86a7172286eeea)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
2 months ago[3.13] gh-143959: Make _datetime optional for test_sys (GH-144003) (#144144)
Miss Islington (bot) [Thu, 22 Jan 2026 11:15:00 +0000 (12:15 +0100)] 
[3.13] gh-143959: Make _datetime optional for test_sys (GH-144003) (#144144)

gh-143959: Make _datetime optional for test_sys (GH-144003)
(cherry picked from commit c447d1bc146bcf7707a619779bdcc03651adb5e3)

Co-authored-by: Jeong, YunWon <69878+youknowone@users.noreply.github.com>
2 months ago[3.13] gh-141004: Mark up docs of old PyMem macros (GH-143783) (GH-143865)
Miss Islington (bot) [Thu, 22 Jan 2026 10:52:12 +0000 (11:52 +0100)] 
[3.13] gh-141004: Mark up docs of old PyMem macros (GH-143783) (GH-143865)

gh-141004: Mark up docs of old PyMem macros (GH-143783)

These had a docs-only deprecation notice since the first version of the docs in this repo. Nowadays we call things “soft deprecated” if there's just a note in the docs.

The deprecated directive needs a version, I went with the first one that had the notice (2.0; it's not in 1.6):
- https://docs.python.org/release/2.0/api/memoryInterface.html
- https://docs.python.org/release/1.6/api/memoryInterface.html

Since PEP 445, they are now direct aliases; there are no (additional) binary compatibility concerns over the preferred names.
(cherry picked from commit a009e78b79ec340d9ff0e1a8ad20f8178fd3257f)

Co-authored-by: Petr Viktorin <encukou@gmail.com>
2 months ago[3.13] gh-144085: Add `{gi,cr}_suspended` to `inspect` comments and `generator/corout...
Yongtao Huang [Thu, 22 Jan 2026 09:20:32 +0000 (17:20 +0800)] 
[3.13] gh-144085: Add `{gi,cr}_suspended` to `inspect` comments and `generator/coroutine` tests (GH-144086) (#144134)

(cherry picked from commit 4ef30a5871db2043712945e64f33af81938d68dc)

2 months ago[3.13] gh-143866: Verify return value of `pathlib.write_{bytes,text}` methods in...
Bera [Tue, 20 Jan 2026 18:34:43 +0000 (21:34 +0300)] 
[3.13] gh-143866: Verify return value of `pathlib.write_{bytes,text}` methods in tests (GH-143870) (#144078)

(cherry picked from commit cb6a662bb0f7a9da9d4ba9dda820053f8d54a9f8)

Co-authored-by: sobolevn <mail@sobolevn.me>
2 months ago[3.13] gh-144050: Fix stat.filemode pure Python file type detection (GH-144059) ...
Miss Islington (bot) [Tue, 20 Jan 2026 12:44:46 +0000 (13:44 +0100)] 
[3.13] gh-144050: Fix stat.filemode pure Python file type detection (GH-144059) (GH-144074)

(cherry picked from commit fe629262c0db7aa18bad8bf3ac524acd8695739b)

Co-authored-by: VanshAgarwal24036 <148854295+VanshAgarwal24036@users.noreply.github.com>
2 months ago[3.13] Update struct.__doc__: _Bool available unconditionally (GH-143716) (#144071)
Miss Islington (bot) [Tue, 20 Jan 2026 12:32:45 +0000 (13:32 +0100)] 
[3.13] Update struct.__doc__: _Bool available unconditionally (GH-143716) (#144071)

Update struct.__doc__: _Bool available unconditionally (GH-143716)

This amends commit a9296e7f3be4d6c22271b25c86467ff867c63bbb.
(cherry picked from commit 31c81ab0a2fb7009a76426617991a9b539ab0180)

Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>
2 months ago[3.13] gh-143999: Fix: handle suspended state on types.coroutine wrappers (GH-144000...
Miss Islington (bot) [Tue, 20 Jan 2026 10:59:24 +0000 (11:59 +0100)] 
[3.13] gh-143999: Fix: handle suspended state on types.coroutine wrappers (GH-144000) (GH-144065)

(cherry picked from commit 76b484b9d16d6a3b1749dc89d99773b5b4a5c4a5)

Co-authored-by: Yongtao Huang <yongtaoh2022@gmail.com>
2 months ago[3.13] gh-143774 - Improve IDLE Format Paragraph doc (GH-143775) (#144063)
Miss Islington (bot) [Tue, 20 Jan 2026 09:32:55 +0000 (10:32 +0100)] 
[3.13] gh-143774 - Improve IDLE Format Paragraph doc (GH-143775) (#144063)

gh-143774 - Improve IDLE Format Paragraph doc (GH-143775)

Add a reminder to not rewrap code line to the Menu => Format => Reformat Paragraph entry.
In Editing and Nagivagion, add a new 'Format block' subsection that defines 'paragraph'
to better match what is dependably handled as more or less expected.
In particular, specify equal indents and that the resulting indent equals original indent.
Also mention that selections are expanded to complete lines and how to modify max length.

(Also fix a couple case errors in cross references.)
(cherry picked from commit fa3abf5a51d42b2d62e1bc89e9465b398a567e94)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
2 months ago[3.13] Notify Sviat of GHA changes through codeowners (GH-143945) (#144052)
🇺🇦 Sviatoslav Sydorenko (Святослав Сидоренко) [Mon, 19 Jan 2026 21:49:20 +0000 (22:49 +0100)] 
[3.13] Notify Sviat of GHA changes through codeowners (GH-143945) (#144052)

(cherry picked from commit 78b1370de96bab5eee82b022a9e26e633a040e0b)

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
2 months ago[3.13] gh-102809: No longer mention `Misc/gdbinit` in the code (GH-143980) (#144045)
Miss Islington (bot) [Mon, 19 Jan 2026 17:59:44 +0000 (18:59 +0100)] 
[3.13] gh-102809: No longer mention `Misc/gdbinit` in the code (GH-143980) (#144045)

gh-102809: No longer mention `Misc/gdbinit` in the code (GH-143980)

Fix misleading comment on `PyObject_Dump`.
(cherry picked from commit f84ea1107170988742fbd350123678a5c503c1ad)

Co-authored-by: Bartosz Sławecki <bartosz@ilikepython.com>
2 months ago[3.13] gh-106318: Add examples for str.rpartition() method (GH-143891) (#144041)
Miss Islington (bot) [Mon, 19 Jan 2026 14:22:24 +0000 (15:22 +0100)] 
[3.13] gh-106318: Add examples for str.rpartition() method (GH-143891) (#144041)

gh-106318: Add examples for str.rpartition() method (GH-143891)
(cherry picked from commit 3c9c3d33cbdef257526871cbc12e93635026f5d6)

Co-authored-by: Adorilson Bezerra <adorilson@gmail.com>
2 months ago[3.13] gh-143754: Modernize Tkinter docs (GH-143841) (GH-144033)
Miss Islington (bot) [Mon, 19 Jan 2026 12:26:26 +0000 (13:26 +0100)] 
[3.13] gh-143754: Modernize Tkinter docs (GH-143841) (GH-144033)

Use more relevant terminology instead of "master"/"slave" widgets where possible.
(cherry picked from commit 813fc7a291c98654c27f2b5d8f9afa8e53b066a6)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
3 months ago[3.13] gh-143916: Reject control characters in wsgiref.headers.Headers (GH-143917...
Gregory P. Smith [Sat, 17 Jan 2026 18:23:57 +0000 (10:23 -0800)] 
[3.13] gh-143916: Reject control characters in wsgiref.headers.Headers (GH-143917) (#143973)

gh-143916: Reject control characters in wsgiref.headers.Headers  (GH-143917)

* Add 'test.support' fixture for C0 control characters
* gh-143916: Reject control characters in wsgiref.headers.Headers

(cherry picked from commit f7fceed79ca1bceae8dbe5ba5bc8928564da7211)

Co-authored-by: Seth Michael Larson <seth@python.org>
3 months ago[3.13] gh-133253: making linecache thread-safe (GH-133305) (#143911)
Sam Gross [Fri, 16 Jan 2026 18:34:53 +0000 (13:34 -0500)] 
[3.13] gh-133253: making linecache thread-safe (GH-133305) (#143911)

(cherry picked from commit 8054184f9f32c7ba561e6e23b358074824e4928d)

Co-authored-by: vfdev <vfdev.5@gmail.com>
3 months ago[3.13] gh-143572: Run 'python3-libraries' fuzzer in CI using CIFuzz (… (#143915)
Seth Michael Larson [Fri, 16 Jan 2026 17:24:34 +0000 (11:24 -0600)] 
[3.13] gh-143572: Run 'python3-libraries' fuzzer in CI using CIFuzz (… (#143915)

Co-authored-by: 🇺🇦 Sviatoslav Sydorenko (Святослав Сидоренко) <578543+webknjaz@users.noreply.github.com>
Co-authored-by: 🇺🇦 Sviatoslav Sydorenko (Святослав Сидоренко) <wk.cvs.github@sydorenko.org.ua>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
3 months ago[3.13] gh-65784: Add support for parametrized resource wantobjects in regrtests ...
Miss Islington (bot) [Fri, 16 Jan 2026 17:01:53 +0000 (18:01 +0100)] 
[3.13] gh-65784: Add support for parametrized resource wantobjects in regrtests (GH-143570) (GH-143914)

This allows to run Tkinter tests with the specified value of
tkinter.wantobjects, for example "-u wantobjects=0".
(cherry picked from commit 21ed1e2a9401a2e96ccc910fcb66f22afc96efbd)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
3 months ago[3.13] gh-143602: Fix duplicate buffer exports in io.BytesIO.write (#143629) (#143872...
Victor Stinner [Fri, 16 Jan 2026 13:23:03 +0000 (14:23 +0100)] 
[3.13] gh-143602: Fix duplicate buffer exports in io.BytesIO.write (#143629) (#143872) (#143878)

[3.14] gh-143602: Fix duplicate buffer exports in io.BytesIO.write (#143629) (#143872)

gh-143602: Fix duplicate buffer exports in io.BytesIO.write (#143629)

Fix an inconsistency issue in io.BytesIO.write() where the buffer was exported
twice, which could lead to unexpected data overwrites and position drift when
the buffer changes between exports.

(cherry picked from commit c461aa99e2fabbaf5859c0a8a93e08306ee8115d)

(cherry picked from commit 1241432150f6342e3d38c5a80a19c8c157a4ebe8)

Co-authored-by: zhong <60600792+superboy-zjc@users.noreply.github.com>
3 months ago[3.13] gh-143672: Add more tests for struct.pack_into() (GH-143901) (GH-143903)
Miss Islington (bot) [Fri, 16 Jan 2026 11:49:30 +0000 (12:49 +0100)] 
[3.13] gh-143672: Add more tests for struct.pack_into() (GH-143901) (GH-143903)

Add tests for negative offset, out of bound offset, invalid type of offset,
non-writeable buffer, non-continuous buffer, invalid type of buffer.

Repeat all tests for struct.Struct.pack_into().
(cherry picked from commit 66680f1230e51b8274279964f8d2278d12285eb3)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
3 months ago[3.13] gh-143635: Fix crash in `ga_repr_items_list` (GH-143670) (#143852)
sobolevn [Thu, 15 Jan 2026 15:27:31 +0000 (18:27 +0300)] 
[3.13] gh-143635: Fix crash in `ga_repr_items_list` (GH-143670) (#143852)

(cherry picked from commit bdba5f0db2ab29f3deedb9416f3c143d33e4ab66)

3 months ago[3.13] gh-142829: Fix use-after-free in `Context.__eq__` via re-entrant `ContextVar...
Serhiy Storchaka [Thu, 15 Jan 2026 15:00:44 +0000 (17:00 +0200)] 
[3.13] gh-142829: Fix use-after-free in `Context.__eq__` via re-entrant `ContextVar.set` (GH-142905) (GH-143871)

(cherry picked from commit a4086d7f89e5d388e4ffcdb13e4fba0255234286)

Co-authored-by: A.Ibrahim <abdulrasheedibrahim47@gmail.com>
3 months ago[3.13] gh-141004: Document symbol visibility macros (PyAPI_DATA, Py_EXPORTED_SYMBOL...
Miss Islington (bot) [Thu, 15 Jan 2026 12:34:37 +0000 (13:34 +0100)] 
[3.13] gh-141004: Document symbol visibility macros (PyAPI_DATA, Py_EXPORTED_SYMBOL, Py_LOCAL_SYMBOL,Py_IMPORTED_SYMBOL) (GH-143508) (GH-143787)

(cherry picked from commit a7ba3b124f707f73b94b59f13908872f1a48e24f)

Co-authored-by: Yashraj <yashrajpala8@gmail.com>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
3 months ago[3.13] Add regression test for add() after remove() with hash collision in set (GH...
Serhiy Storchaka [Thu, 15 Jan 2026 10:04:34 +0000 (12:04 +0200)] 
[3.13] Add regression test for add() after remove() with hash collision in set (GH-143781) (GH-143859)

(cherry picked from commit 565685f6e88fd333326baff6469f53cfff28e01e)

3 months ago[3.13] gh-143834: Fix PyLong_AsNativeBytes docs for negative number padding (GH...
Miss Islington (bot) [Thu, 15 Jan 2026 08:34:21 +0000 (09:34 +0100)] 
[3.13] gh-143834: Fix PyLong_AsNativeBytes docs for negative number padding  (GH-143840) (GH-143855)

(cherry picked from commit 421bd1770a87d141f66754ae29e407589e44ce83)

Co-authored-by: Muneeb Ullah <moneebullah25@gmail.com>
3 months ago[3.13] gh-141805: Fix crash after concurrent addition objects with the same hash...
Serhiy Storchaka [Thu, 15 Jan 2026 07:59:15 +0000 (09:59 +0200)] 
[3.13] gh-141805: Fix crash after concurrent addition objects with the same hash to set (GH-143815) (GH-143853)

This happens when the set contained several elements with the same hash,
and then some of them were removed.
(cherry picked from commit b8e925b4f8f6c5e28fbebc4f3965bf77610698b3)

3 months ago[3.13] gh-106287: Do not write objects after an unmarshalling error (GH-132715) ...
Miss Islington (bot) [Wed, 14 Jan 2026 11:48:52 +0000 (12:48 +0100)] 
[3.13] gh-106287: Do not write objects after an unmarshalling error (GH-132715) (GH-143833)

Writing out an object may involve a slot lookup, which is not safe to do with
an exception raised. In debug mode an assertion failure will occur if this
happens.
(cherry picked from commit ce8f5f98c6fc95a1704360d986a4d0281eeada79)

Co-authored-by: Duane Griffin <duaneg@dghda.com>
3 months ago[3.13] gh-141004: Document old provisional names for vectorcall/code API (GH-143568...
Miss Islington (bot) [Wed, 14 Jan 2026 10:01:54 +0000 (11:01 +0100)] 
[3.13] gh-141004: Document old provisional names for vectorcall/code API (GH-143568) (GH-143829)

For vectorcall API, the underscore-prefixed provisional names
continue to be available per PEP 590:
https://peps.python.org/pep-0590/#finalizing-the-api
Use `versionadded`, `versionchanged`, and `:no-typesetting:`
to mark this up.

For PyCode API, use `:no-typesetting:` rather than `index::` so that
these are semantically documented as C functions.
(cherry picked from commit 7e8a1b5061313e03f99bc2ffa2062702bcc76426)

Co-authored-by: Petr Viktorin <encukou@gmail.com>
3 months ago[3.13] gh-137113 docs: note readline no longer supported in REPL after 3.13 (GH-13714...
Miss Islington (bot) [Wed, 14 Jan 2026 09:56:18 +0000 (10:56 +0100)] 
[3.13] gh-137113 docs: note readline no longer supported in REPL after 3.13 (GH-137142) (GH-143792)

Add a note to the readline module documentation stating that
Python 3.13 and later no longer supports readline in the default REPL,
as per gh-118840. Includes workaround using PYTHON_BASIC_REPL.

Update tutorial to remove the reference, and use a different key to
test things out.
(cherry picked from commit 971f387bbb598a481aa8974ddc7a358459030415)

Signed-off-by: Kuang Yu Heng <yuheng3107@gmail.com>
Co-authored-by: Kuang Yu Heng <yuheng3107@gmail.com>
3 months ago[3.13] gh-143706: Fix sys.argv not set during multiprocessing forkserver `__main__...
Gregory P. Smith [Wed, 14 Jan 2026 02:09:05 +0000 (18:09 -0800)] 
[3.13] gh-143706: Fix sys.argv not set during multiprocessing forkserver `__main__` preload (GH-143717) (#143821)

The forkserver was not passing sys.argv to its main() function, causing
sys.argv to be empty during `__main__` module import in child processes. This
fixes a non-obvious regression inadvertently introduced by the gh-126631 main
preloading fix.

(cherry picked from commit 298d5440eb83f2dfd5651bac86d1592ec358d54c)

3 months ago[3.13] Bump GitHub Actions (GH-143757) (#143798)
Hugo van Kemenade [Tue, 13 Jan 2026 16:47:03 +0000 (18:47 +0200)] 
[3.13] Bump GitHub Actions (GH-143757) (#143798)

3 months ago[3.13] gh-143728: Keep `TypedDict` and `NamedTuple` in `class` role in docs (GH-14370...
Miss Islington (bot) [Tue, 13 Jan 2026 13:58:14 +0000 (14:58 +0100)] 
[3.13] gh-143728: Keep `TypedDict` and `NamedTuple` in `class` role in docs (GH-143702) (#143800)

Co-authored-by: Bartosz Sławecki <bartosz@ilikepython.com>
3 months ago[3.13] gh-143249: Fix buffer leak when overlapped operation fails to start on windows...
Miss Islington (bot) [Tue, 13 Jan 2026 13:53:41 +0000 (14:53 +0100)] 
[3.13] gh-143249: Fix buffer leak when overlapped operation fails to start on windows (GH-143250) (#143796)

gh-143249: Fix buffer leak when overlapped operation fails to start on windows (GH-143250)
(cherry picked from commit 103a384bfdeafc68ab39ea9bf8838a8b2eec83dd)

Co-authored-by: Yongtao Huang <yongtaoh2022@gmail.com>
3 months ago[3.13] gh-141004: Don't trigger `run-tests` when `Tools/check-c-api-docs/ignored_c_ap...
Miss Islington (bot) [Tue, 13 Jan 2026 13:48:39 +0000 (14:48 +0100)] 
[3.13] gh-141004: Don't trigger `run-tests` when `Tools/check-c-api-docs/ignored_c_api.txt` is changed (GH-143583) (GH-143794)

gh-141004: Don't trigger `run-tests` when `Tools/check-c-api-docs/ignored_c_api.txt` is changed (GH-143583)
(cherry picked from commit 1176facbf21388ef29276ec55a95a66423f61191)

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
3 months ago[3.13] gh-106318: Add examples for str.replace() method (GH-143581) (GH-143788)
Miss Islington (bot) [Tue, 13 Jan 2026 12:23:26 +0000 (13:23 +0100)] 
[3.13] gh-106318: Add examples for str.replace() method (GH-143581) (GH-143788)

(cherry picked from commit af9f783a7e9bfdca94ce5b9619c1b82a32d9e170)

Co-authored-by: Adorilson Bezerra <adorilson@gmail.com>
3 months ago[3.13] gh-143189: fix insertdict() for non-Unicode key (GH-143285) (#143772)
Inada Naoki [Tue, 13 Jan 2026 10:12:38 +0000 (19:12 +0900)] 
[3.13] gh-143189: fix insertdict() for non-Unicode key (GH-143285) (#143772)

3 months ago[3.13] gh-139707: Copy-strip change to idle.rst into idlelib (#143767)
Terry Jan Reedy [Tue, 13 Jan 2026 03:58:30 +0000 (22:58 -0500)] 
[3.13] gh-139707: Copy-strip change to idle.rst into idlelib (#143767)

Copy net new text in idle.rst from main to 3.13.
Make 3.13 docs and copy-strip idle.html to idlelib/help.html.
See https://github.com/python/cpython/issues/139707#issuecomment-3737374788
and PR #143718 message for more.

* Revert url to 'main' from '3.13'

The branch in the source links in the revised help.html
become '3.13' instead of 'main' because the html
was generated from an edited 3.13 version of idle.rst
instead being backported from main.  This reversion
avoids the possibility of future backport merge conflicts.

The version makes no difference to the Help/IDLE doc display as
the url is currently neither displayed nor linked to the link title
-- 'Lib/idlelib'.  If we do make the links live, we can use
sys.version_info to replace 'main' when main is no longer the source branch.

3 months ago[3.13] gh-143762 Backport a6bc60d for random combinatoric recipes (GH-143764) (gh...
Miss Islington (bot) [Tue, 13 Jan 2026 00:25:55 +0000 (01:25 +0100)] 
[3.13] gh-143762 Backport a6bc60d for random combinatoric recipes (GH-143764) (gh-143766)

3 months ago[3.13] gh-142461: Move misplaced NEWS entries to an appropriate section (GH-143411...
Miss Islington (bot) [Mon, 12 Jan 2026 18:20:22 +0000 (19:20 +0100)] 
[3.13] gh-142461: Move misplaced NEWS entries to an appropriate section (GH-143411) (GH-143745)

(cherry picked from commit 3d44f0ab65221d8704d9298712a5114cba3aeea9)

Co-authored-by: Aniket <148300120+Aniketsy@users.noreply.github.com>
3 months ago[3.13] gh-141536: Fix a crash when running test_capi *after* test_code in the same...
Stan Ulbrych [Mon, 12 Jan 2026 18:07:34 +0000 (18:07 +0000)] 
[3.13] gh-141536: Fix a crash when running test_capi *after* test_code in the same process (GH-141537) (GH-143625)

(cherry picked from commit b2827de18fe88152dc38c1aa76c39b69ef59cb6f)

Co-authored-by: T. Wouters <thomas@python.org>