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git.ipfire.org Git - thirdparty/Python/cpython.git/log
Serhiy Storchaka [Wed, 14 Jan 2026 21:29:17 +0000 (23:29 +0200)]
gh-141805: Fix crash after concurrent addition objects with the same hash to set (GH-143815)
This happens when the set contained several elements with the same hash,
and then some of them were removed.
Raymond Hettinger [Wed, 14 Jan 2026 21:20:53 +0000 (15:20 -0600)]
gh-143825: Micro-optimizations to _make_key. (gh-143844)
Mohammad Miadh Angkad [Wed, 14 Jan 2026 20:37:13 +0000 (04:37 +0800)]
GH-143842: Make optimizer color table static (GH-143846)
Savannah Ostrowski [Wed, 14 Jan 2026 20:08:32 +0000 (12:08 -0800)]
Add Savannah to CODEOWNERS for WASI (#143847)
Serhiy Storchaka [Wed, 14 Jan 2026 19:55:11 +0000 (21:55 +0200)]
Fix refleaks in new unicodedata classes added in gh-74902 (GH-143843)
Priyanshu Singh [Wed, 14 Jan 2026 17:47:55 +0000 (23:17 +0530)]
gh-143632: Disable PR_SET_VMA_ANON_NAME on musl libc (gh-143730)
Hugo van Kemenade [Wed, 14 Jan 2026 17:30:22 +0000 (19:30 +0200)]
Post 3.15.0a5
Hugo van Kemenade [Wed, 14 Jan 2026 14:41:12 +0000 (16:41 +0200)]
Python 3.15.0a5
Serhiy Storchaka [Wed, 14 Jan 2026 14:37:57 +0000 (16:37 +0200)]
gh-74902: Add Unicode Grapheme Cluster Break algorithm (GH-143076)
Add the unicodedata.iter_graphemes() function to iterate over grapheme
clusters according to rules defined in Unicode Standard Annex #29.
Add unicodedata.grapheme_cluster_break(), unicodedata.indic_conjunct_break()
and unicodedata.extended_pictographic() functions to get the properties
of the character which are related to the above algorithm.
Co-authored-by: Guillaume "Vermeille" Sanchez <guillaume.v.sanchez@gmail.com>
Peter Bierma [Wed, 14 Jan 2026 13:20:33 +0000 (08:20 -0500)]
gh-141004: Document several soft-deprecated C APIs (GH-141634)
Co-authored-by: Petr Viktorin <encukou@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
Serhiy Storchaka [Wed, 14 Jan 2026 12:44:53 +0000 (14:44 +0200)]
gh-143214: Add the wrapcol parameter in binascii.b2a_base64() and base64.b64encode() (GH-143216)
Ken Jin [Wed, 14 Jan 2026 12:23:14 +0000 (20:23 +0800)]
gh-143123: Protect against recursive tracer calls/finalization (GH-143126)
* Stronger check for recursive traces
* Add a stop_tracing field
* Stop early when tracing exceptions
Mark Shannon [Wed, 14 Jan 2026 11:34:58 +0000 (11:34 +0000)]
GH-143613: Add colours and some more edges to executor visualization graph (GH-143809)
Duane Griffin [Wed, 14 Jan 2026 11:25:46 +0000 (00:25 +1300)]
gh-106287: Do not write objects after an unmarshalling error (GH-132715)
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.
Hai Zhu [Wed, 14 Jan 2026 10:27:33 +0000 (18:27 +0800)]
gh-138050: Use cold flag instead of warm flag in `MAKE_WARM` (GH-143827)
Petr Viktorin [Wed, 14 Jan 2026 09:54:45 +0000 (10:54 +0100)]
gh-141004: Document old provisional names for vectorcall/code API (GH-143568)
gh-141004: Document old provisional names for vectorcall & code API
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.
Russell Keith-Magee [Tue, 13 Jan 2026 22:03:04 +0000 (06:03 +0800)]
gh-143460: Correct unlimited stack size skip for Emscripten (#143765)
Modifies the test skip for unlimited stack size to add Emscripten to the
exclusion list.
Ken Jin [Tue, 13 Jan 2026 19:11:53 +0000 (03:11 +0800)]
gh-131798: JIT optimizer: Support custom binary op and property frames (GH-143735)
Hugo van Kemenade [Tue, 13 Jan 2026 18:44:19 +0000 (20:44 +0200)]
Merge branch 'main' of https://github.com/python/cpython
Hugo van Kemenade [Tue, 13 Jan 2026 18:39:00 +0000 (20:39 +0200)]
Post 3.15.0a4
Alper [Tue, 13 Jan 2026 14:02:27 +0000 (06:02 -0800)]
gh-116738: Make `lzma` module thread-safe (#142947)
Bartosz Sławecki [Tue, 13 Jan 2026 13:52:29 +0000 (14:52 +0100)]
gh-143728: Keep `TypedDict` and `NamedTuple` in `class` role in docs (#143702)
Hugo van Kemenade [Tue, 13 Jan 2026 13:43:26 +0000 (15:43 +0200)]
Bump GitHub Actions (#143757)
Yongtao Huang [Tue, 13 Jan 2026 13:41:38 +0000 (21:41 +0800)]
remove duplicate error constants in `_winapi` (#143684)
Lakshya Upadhyaya [Tue, 13 Jan 2026 13:38:26 +0000 (19:08 +0530)]
gh-141045: Document that shutil.Error is a subclass of OSError (#141152)
Yongtao Huang [Tue, 13 Jan 2026 13:31:24 +0000 (21:31 +0800)]
gh-143249: Fix buffer leak when overlapped operation fails to start on windows (#143250)
Stan Ulbrych [Tue, 13 Jan 2026 13:28:09 +0000 (13:28 +0000)]
gh-141004: Don't trigger `run-tests` when `Tools/check-c-api-docs/ignored_c_api.txt` is changed (GH-143583)
Petr Viktorin [Tue, 13 Jan 2026 12:21:59 +0000 (13:21 +0100)]
gh-143054: Disallow non-top-level Cut for now (GH-143622)
The behaviour of Cut in nested parentheses, Repeat, Opt, and similar
is somewhat chaotic. Apparently even the academic papers on PEG aren't
as clear as they could be.
And it doesn't really matter. Python only uses top-level cuts.
When that changes, we can clarify as much as necessary (and even
change the implementation to make sense for what we'll need).
Document that this is deliberately unspecified, and add a test to
make sure any decision is deliberate, tested and documented.
Yashraj [Tue, 13 Jan 2026 12:15:02 +0000 (17:45 +0530)]
gh-141004: Document symbol visibility macros (PyAPI_DATA, Py_EXPORTED_SYMBOL, Py_LOCAL_SYMBOL,Py_IMPORTED_SYMBOL) (GH-143508)
Co-authored-by: Petr Viktorin <encukou@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
Hugo van Kemenade [Tue, 13 Jan 2026 10:26:31 +0000 (12:26 +0200)]
Python 3.15.0a4
Cody Maloney [Tue, 13 Jan 2026 09:33:26 +0000 (01:33 -0800)]
gh-132108: Add Buffer Protocol support to int.from_bytes to improve performance (#132109)
Speed up conversion from `bytes-like` objects like `bytearray` while
keeping conversion from `bytes` stable.
Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
Stan Ulbrych [Tue, 13 Jan 2026 09:18:48 +0000 (09:18 +0000)]
gh-141004: GHA: Run `check-c-api-docs` check on docs-only PRs (GH-143573)
Co-authored-by: 🇺🇦 Sviatoslav Sydorenko (Святослав Сидоренко) <wk.cvs.github@sydorenko.org.ua>
Hugo van Kemenade [Tue, 13 Jan 2026 06:54:15 +0000 (08:54 +0200)]
gh-143658: importlib.metadata: Use `str.translate` to improve performance of `importlib.metadata.Prepared.normalized` (#143660)
Co-authored-by: Henry Schreiner <henryschreineriii@gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Bartosz Sławecki <bartosz@ilikepython.com>
Raymond Hettinger [Mon, 12 Jan 2026 23:55:02 +0000 (17:55 -0600)]
Update random combinatoric recipes and add tests (gh-143762)
Gregory P. Smith [Mon, 12 Jan 2026 23:47:21 +0000 (15:47 -0800)]
gh-143706: Fix sys.argv not set during multiprocessing forkserver `__main__` preload (#143717)
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.
Łukasz Langa [Mon, 12 Jan 2026 23:01:01 +0000 (00:01 +0100)]
Bump automatic certificate update on Windows during builds (GH-143741)
Without this, OpenSSL that we use to download external dependencies might use a stale certificate store and be unable to connect to servers. We need to use a Windows-specific HTTP client that uses CryptoAPI directly to trigger certificate updates.
We only do it on failure to avoid hitting servers twice. And we only do it once per each URL.
Savannah Ostrowski [Mon, 12 Jan 2026 22:56:05 +0000 (14:56 -0800)]
Add Savannah to optimizer CODEOWNERS (#143761)
Ken Jin [Mon, 12 Jan 2026 22:14:52 +0000 (06:14 +0800)]
gh-134584: Add more contributors for JIT refcounting work (GH-143760)
reiden [Mon, 12 Jan 2026 21:56:26 +0000 (22:56 +0100)]
gh-134584: Eliminate redundant refcounting in TO_BOOL_INT, TO_BOOL_LIST (GH-143759)
Raymond Hettinger [Mon, 12 Jan 2026 20:12:23 +0000 (14:12 -0600)]
Minor readability/usability improvement to the recipes section (gh-143753)
Savannah Ostrowski [Mon, 12 Jan 2026 19:03:42 +0000 (11:03 -0800)]
GH-43374: Revert "GH-43374: Fix urlretrieve reporthook to report actual bytes r… (#143711)
Revert "GH-43374: Fix urlretrieve reporthook to report actual bytes read (#142653)"
This reverts commit
68a01f901f446f71aac88431e01bb18b9fa35bd0 .
Serhiy Storchaka [Mon, 12 Jan 2026 18:23:05 +0000 (20:23 +0200)]
gh-143196: Fix crash in non-standard use of internal JSON encoder object (GH-143618)
The internal encoder object returned by undocumented function
json.encoder.c_make_encoder() (aka _json.make_encoder()) crashed
when it was called with non-zero second argument.
Aniket [Mon, 12 Jan 2026 18:13:44 +0000 (23:43 +0530)]
gh-142461: Move misplaced NEWS entries to an appropriate section (GH-143411)
Terry Jan Reedy [Mon, 12 Jan 2026 17:55:06 +0000 (12:55 -0500)]
gh-139707: Copy-strip change to idle.rst into idlelib (#143718)
On Windows, running `python -c "from idlelib.help import copy_strip;
copy_strip()"` after idle.html is built results in
`f:\dev\3x\Doc\build\html\library\idle.html
copied to f:\dev\3x\Lib\idlelib\help.html`
This PR commits the html change to idlelib/help.html.
Sam Gross [Mon, 12 Jan 2026 17:14:13 +0000 (12:14 -0500)]
gh-140795: Remove 'exc' field in SSLObject (gh-143491)
The 'exc' field was used by our debug SSL callbacks. Keep the exception
in the normal per-thread state to avoid shared mutable state between
threads.
This also avoids a reference count leak if the Python callback raised an
exception because it can be called multiple times per SSL operation.
Lysandros Nikolaou [Mon, 12 Jan 2026 16:43:05 +0000 (17:43 +0100)]
gh-142518: Document thread-safety guarantees of list operations (#142519)
* Add everything to code blocks
* Improve wording around atomicity; specify exact types
* Better explain lock-free and atomicity
Nadeshiko Manju [Mon, 12 Jan 2026 15:47:31 +0000 (23:47 +0800)]
gh-134584: Eliminate redundant refcounting from `_CONTAINS_{OP|OP_SET|OP_DICT}` (GH-143731)
Signed-off-by: Manjusaka <me@manjusaka.me>
VanshAgarwal24036 [Mon, 12 Jan 2026 15:39:32 +0000 (21:09 +0530)]
gh-143544: Fix possible use-after-free in the JSON decoder when JSONDecodeError disappears during raising it (#143561)
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Pablo Galindo Salgado [Mon, 12 Jan 2026 15:37:43 +0000 (15:37 +0000)]
gh-143253: Add libabigail suppression file for internal types (#143254)
Co-authored-by: Petr Viktorin <encukou@gmail.com>
Kuang Yu Heng [Mon, 12 Jan 2026 15:30:35 +0000 (07:30 -0800)]
gh-137113 docs: note readline no longer supported in REPL after 3.13 (GH-137142)
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.
Signed-off-by: Kuang Yu Heng <yuheng3107@gmail.com>
Cajetan Rodrigues [Mon, 12 Jan 2026 14:13:55 +0000 (15:13 +0100)]
gh-134584: JIT: Remove redundant refcount for _BINARY_OP_SUBSCR_DICT (GH-143724)
Yashraj [Mon, 12 Jan 2026 12:59:59 +0000 (18:29 +0530)]
gh-141004: Document PyUnicode_IS_COMPACT and PyUnicode_IS_COMPACT_ASCII macros (GH-143494)
Guo Ci [Mon, 12 Jan 2026 11:34:18 +0000 (06:34 -0500)]
gh-140806: add docs for `enum.bin` function (#140807)
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>
Inada Naoki [Mon, 12 Jan 2026 11:21:23 +0000 (20:21 +0900)]
gh-143189: fix insertdict() for non-Unicode key (#143285)
Petr Viktorin [Mon, 12 Jan 2026 11:21:14 +0000 (12:21 +0100)]
gh-143578: Restore note about patchlevel.h (#143596)
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Serhiy Storchaka [Mon, 12 Jan 2026 09:49:18 +0000 (11:49 +0200)]
gh-142306: Improve errors for Element.remove() (GH-142308)
* Raise TypeError for non-element argument in the Python implementation
too.
* Include the repr of the elements in the ValueError error message.
Serhiy Storchaka [Mon, 12 Jan 2026 08:45:10 +0000 (10:45 +0200)]
gh-142881: Fix concurrent and reentrant call of atexit.unregister() (GH-142901)
Serhiy Storchaka [Mon, 12 Jan 2026 08:40:06 +0000 (10:40 +0200)]
gh-143346: Fix calculation of the line width for wrapped Base64 in plistlib (GH-143347)
It was incorrect in case of mixed tabs and spaces in indentation.
Ken Jin [Sun, 11 Jan 2026 20:42:55 +0000 (04:42 +0800)]
gh-134584: JIT: Remove redundant refcounting for UNARY_{INVERT|NEGATIVE} (GH-143704)
Bartosz Sławecki [Sun, 11 Jan 2026 19:36:47 +0000 (20:36 +0100)]
gh-142972: Document arbitrary ordering in `Path.glob` and `Path.rglob` (GH-143025)
James Hilton-Balfe [Sun, 11 Jan 2026 19:27:24 +0000 (19:27 +0000)]
gh-128335: Make slice generic at runtime (#128336)
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Bartosz Sławecki [Sun, 11 Jan 2026 19:24:19 +0000 (20:24 +0100)]
gh-127750: Fix annotations in singledispatchmethod signature tests (GH-143571)
These tests relied on a bug -- gh-84644, which is that singledispatch
doesn't verify the annotation is on the "first" parameter.
Ken Jin [Sun, 11 Jan 2026 18:55:05 +0000 (02:55 +0800)]
gh-139038: Update JIT perf figures for 3.14a4 (GH-143705)
Sergey B Kirpichev [Sun, 11 Jan 2026 17:17:47 +0000 (20:17 +0300)]
gh-143420: Clarify sequence behavior for slice indexes (#143422)
AN Long [Sun, 11 Jan 2026 15:53:25 +0000 (00:53 +0900)]
gh-86139: Correct NamedTuple and TypedDict's type in typing.rst (#143692)
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
Sergey B Kirpichev [Sun, 11 Jan 2026 15:52:01 +0000 (18:52 +0300)]
gh-78724: Raise RuntimeError's when calling methods on non-ready Struct()'s (GH-143643)
Serhiy Storchaka [Sun, 11 Jan 2026 12:01:13 +0000 (14:01 +0200)]
gh-143638: Forbid cuncurrent use of the Pickler and Unpickler objects in C implementation (GH-143664)
Previously, this could cause crash or data corruption, now concurrent calls
of methods of the same object raise RuntimeError.
Manuel Jacob [Sun, 11 Jan 2026 07:27:11 +0000 (08:27 +0100)]
Remove outdated comment about `excess_args` warning in `object.__init__` (#143669)
The code emitting a warning was removed in
96384b93aae1d1e45dda21c4024d7d083c91626d .
Raymond Hettinger [Sun, 11 Jan 2026 04:00:13 +0000 (22:00 -0600)]
Sync the batched() example with the grouper() example. (gh-143676)
Raymond Hettinger [Sun, 11 Jan 2026 01:47:27 +0000 (19:47 -0600)]
Add derangements() recipe (gh-143671)
emmanuel [Sat, 10 Jan 2026 13:34:30 +0000 (22:34 +0900)]
Doc: remove duplicate GitHub issue reference in "What's New in Python 3.13" (#143654)
Bénédikt Tran [Sat, 10 Jan 2026 11:37:54 +0000 (12:37 +0100)]
gh-143377: fix crashes in `_interpreters.capture_exception` (#143418)
Nadeshiko Manju [Sat, 10 Jan 2026 11:15:48 +0000 (19:15 +0800)]
gh-143604: Hold strong reference to executor during JIT tracing (GH-143646)
Co-authored-by: Ken Jin <kenjin4096@gmail.com>
Jeong, YunWon [Sat, 10 Jan 2026 09:51:42 +0000 (18:51 +0900)]
gh-143641: Make `ready_to_import` always remove tempdir from `sys.path` (#143642)
Make ready_to_import always remove tempdir from sys.path
Heikki Toivonen [Sat, 10 Jan 2026 06:17:57 +0000 (22:17 -0800)]
gh-143586: Add Counter comparison tests to enforce missing element semantics (gh-143587)
Ken Jin [Fri, 9 Jan 2026 23:18:22 +0000 (07:18 +0800)]
gh-142764: Restore REPLACE_OPCODE_IF_EVALUATES_PURE optimization for some ops (GH-143335)
Ken Jin [Fri, 9 Jan 2026 19:00:49 +0000 (03:00 +0800)]
gh-143421: Allocate all JIT state in one go (GH-143626)
Petr Viktorin [Fri, 9 Jan 2026 17:40:07 +0000 (18:40 +0100)]
gh-141004: Document remaining constants from patchlevel.h (GH-143598)
Co-authored-by: Victor Stinner <vstinner@python.org>
Semyon Moroz [Fri, 9 Jan 2026 17:06:54 +0000 (17:06 +0000)]
gh-136438: Make sure `test_interpreters` pass with all optimization levels (GH-136499)
Serhiy Storchaka [Fri, 9 Jan 2026 17:06:45 +0000 (19:06 +0200)]
gh-143006: Fix and optimize mixed comparison of float and int (GH-143084)
When comparing negative non-integer float and int with the same number
of bits in the integer part, __neg__() in the int subclass returning
not an int caused an assertion error.
Now the integer is no longer negated. Also, reduced the number of
temporary created Python objects.
Ken Jin [Fri, 9 Jan 2026 16:56:19 +0000 (00:56 +0800)]
gh-143421: Lazily allocate tracer code and opt buffers (GH-143597)
Jan André Reuter [Fri, 9 Jan 2026 16:11:37 +0000 (17:11 +0100)]
gh-143460: Skip infinite recusion tests for infinite stack size (#143606)
Avoid tests being killed due to OOM on Linux if a system is configured with
'ulimit -s unlimited' by skipping tests relying on infinite recursion.
While unclear if Python should support 'ulimit -s unlimited', we should at
least try to avoid failing a PGO build running tests due to an unlimited
stack size being set.
Signed-off-by: Jan André Reuter <j.reuter@fz-juelich.de>
Adorilson Bezerra [Fri, 9 Jan 2026 15:24:31 +0000 (15:24 +0000)]
gh-106318: Add examples for str.rfind() method (#143582)
Adorilson Bezerra [Fri, 9 Jan 2026 15:22:50 +0000 (15:22 +0000)]
gh-106318: Improve str.removeprefix() and str.removesuffix() docs (#143580)
Add doctest role and 'See also'.
Victor Stinner [Fri, 9 Jan 2026 15:08:40 +0000 (16:08 +0100)]
gh-143191: Use _PyOS_MIN_STACK_SIZE in _thread.stack_size() (#143601)
The stack size must be at least _PyOS_MIN_STACK_SIZE+SYSTEM_PAGE_SIZE
bytes.
A.Ibrahim [Fri, 9 Jan 2026 12:27:34 +0000 (13:27 +0100)]
gh-142829: Fix use-after-free in `Context.__eq__` via re-entrant `ContextVar.set` (#142905)
AN Long [Fri, 9 Jan 2026 12:18:32 +0000 (21:18 +0900)]
gh-72239: Add note distinguishing concurrent.futures.Future from asyncio.Future (#143288)
Victor Stinner [Fri, 9 Jan 2026 12:16:22 +0000 (13:16 +0100)]
gh-143547: Fix PyErr_FormatUnraisable() fallback (#143557)
Hold a strong reference to 'hook' while calling the default
unraisable took to log hook failure.
Fix test_sys.UnraisableHookTest: use the right decorator function to
disable colors. Previously, tests were always skipped.
zhong [Fri, 9 Jan 2026 11:50:56 +0000 (03:50 -0800)]
gh-143378: Fix use-after-free when BytesIO is concurrently mutated during write operations (GH-143408)
PyObject_GetBuffer() can execute user code (e.g. via __buffer__), which may
close or otherwise mutate a BytesIO object while write() or writelines()
is in progress. This could invalidate the internal buffer and lead to a
use-after-free.
Ensure that PyObject_GetBuffer() is called before validation checks.
Henry Chen [Fri, 9 Jan 2026 10:46:48 +0000 (18:46 +0800)]
gh-143429: Use compile-time NaN encoding detection for test_struct (#143432)
Petr Viktorin [Fri, 9 Jan 2026 10:16:50 +0000 (11:16 +0100)]
gh-141004: Improve `make check-c-api-docs` (GH-143564)
- Gather all documented names into a set in a single pass.
This makes the check much faster.
- Do not match substrings (e.g. documenting `PyErr_WarnEx`
doesn't mean that `PyErr_Warn` is documented)
- Consider `PY`-prefixed names (a lot of old macros use this)
Yongtao Huang [Fri, 9 Jan 2026 08:49:54 +0000 (16:49 +0800)]
Test: remove unintended unittest.main() in live collector tests (#143590)
Adorilson Bezerra [Fri, 9 Jan 2026 08:01:00 +0000 (08:01 +0000)]
gh-106318: Add examples for str.replace() method (GH-143581)
Savannah Ostrowski [Fri, 9 Jan 2026 00:32:05 +0000 (16:32 -0800)]
GH-43374: Fix urlretrieve reporthook to report actual bytes read (#142653)
Brett Cannon [Thu, 8 Jan 2026 22:08:03 +0000 (14:08 -0800)]
GH-139686: Revert "gh-139686: Make reloading a lazy module no-op (GH-139857)" (#143584)
This reverts commits
57db12514ac686f0a752ec8fe1c08b6daa0c6219 and
0a97941245f1dda6d838f9aaf0512104e5253929 .
Russell Keith-Magee [Thu, 8 Jan 2026 21:47:38 +0000 (05:47 +0800)]
Add Emscripten test skips for recently added tests. (#143551)
Some recent changes introduced tests that can't run on Emscripten.
This change adds test skips for those tests.
Sam Gross [Thu, 8 Jan 2026 19:45:54 +0000 (14:45 -0500)]
gh-120321: Make gen.gi_frame.clear() thread-safe (gh-143112)
Hai Zhu [Thu, 8 Jan 2026 19:38:21 +0000 (03:38 +0800)]
gh-143421: Move `JitOptContext` from stack allocation to per-thread heap allocation (GH-143536)
* move JitOptContext to _PyThreadStateImpl
* make _PyUOpInstruction buffer a part of _PyThreadStateImpl
Co-authored-by: Kumar Aditya <kumaraditya@python.org>
Heikki Toivonen [Thu, 8 Jan 2026 15:28:02 +0000 (07:28 -0800)]
gh-143445: Optimize deepcopy for 1.04x speedup (#143449)
Gains according to pyperformance:
```
deepcopy:
Mean +- std dev: 411 us +- 2 us -> 396 us +- 3 us: 1.04x faster
Significant (t=28.94)
deepcopy_reduce:
Mean +- std dev: 4.38 us +- 0.05 us -> 4.23 us +- 0.04 us: 1.04x faster
Significant (t=20.05)
```
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Sam Gross [Thu, 8 Jan 2026 14:32:20 +0000 (09:32 -0500)]
gh-142908: Don't use `DK_IS_UNICODE` in interpreter (gh-142909)
`DK_IS_UNICODE()` includes split keys and we don't want to specialize on
those accesses..