Kumar Aditya [Fri, 10 Oct 2025 17:06:02 +0000 (22:36 +0530)]
[3.14] gh-139894: fix incorrect sharing of current task while forking in `asyncio` (GH-139897) (#139913)
* [3.14] gh-139894: fix incorrect sharing of current task while forking in `asyncio` (GH-139897)
Fix incorrect sharing of current task with the forked child process by clearing thread state's current task and current loop in `PyOS_AfterFork_Child`.
(cherry picked from commit b881df47ff1adca515d1de04f689160ddae72142)
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com> Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com> Co-authored-by: Victor Stinner <vstinner@python.org>
[3.14] gh-139065: Fix trailing space before long word in textwrap (GH-139070) (GH-139902)
Fix trailing space before a wrapped long word if the line length with
a space is exactly "width".
(cherry picked from commit 1c598e04361dbfc9cf465f3a02f83715c11b028c)
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com> Co-authored-by: Emma Smith <emma@emmatyping.dev> Co-authored-by: Victor Stinner <vstinner@python.org>
[3.14] gh-139391: properly handle `signal.signal()` in `UnixConsole` when called from a non-main thread (GH-139392) (#139858)
gh-139391: properly handle `signal.signal()` in `UnixConsole` when called from a non-main thread (GH-139392)
(cherry picked from commit b8c8b8f1d30767e5358ffa93d41e6e27ca60570d)
[3.14] gh-139742: Add support for Python 3.14 t-string prefixes in IDLE colorizer and tests (GH-139756) (#139831)
gh-139742: Add support for Python 3.14 t-string prefixes in IDLE colorizer and tests (GH-139756)
Add 't' prefix to colorizer.py stringprefix regex to support Python 3.14 template strings.
Add t prefixes to test_colorizer.py source test text and adjust line numbers on test methods.
---------
(cherry picked from commit 6fd141834193e3dc2423e785d97eb127c972a70e)
Kumar Aditya [Wed, 8 Oct 2025 16:46:21 +0000 (22:16 +0530)]
[3.14] gh-139748: fix leaks in AC error paths when using unicode FS-b… (#139789)
* [3.14] gh-139748: fix leaks in AC error paths when using unicode FS-based converters (GH-139765)
(cherry picked from commit b04a57deef66ce08233be57d1ab5873388df2cea)
[3.14] gh-138843: Clean up downloads page (GH-138844) (#139796)
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com> Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
[3.14] gh-83424: Allow empty name if handle is non-null when create ctypes.CDLL on Windows (GH-136878) (#138546)
gh-83424: Allow empty name if handle is non-null when create ctypes.CDLL on Windows (GH-136878)
(cherry picked from commit ed522ed211b7b9ea9d85a93b5d6ca79b2df3ef58)
Co-authored-by: AN Long <aisk@users.noreply.github.com> Co-authored-by: Petr Viktorin <encukou@gmail.com>
[3.14] gh-137317: Fix inspect.signature() for class with wrapped __init__ or __new__ (GH-137862) (#138224)
gh-137317: Fix inspect.signature() for class with wrapped __init__ or __new__ (GH-137862)
Fixed several cases where __init__, __new__ or metaclass` __call__ is a descriptor
that returns a wrapped function.
(cherry picked from commit 025a2135eff848abf24f9dc52c81386eea9da397)
[3.14] GH-137573: Add test to check that the margin used for overflow protection is larger than the stack space used by the interpreter (GH-137724) (GH-139295)
[3.14] gh-60462: Fix locale.strxfrm() on Solaris (GH-138242) (GH-138448)
It should interpret the result of wcsxfrm() as a sequence of abstract
integers, not a sequence of Unicode code points or using other encoding
scheme that does not preserve ordering.
(cherry picked from commit 482fd0c811a366f25bd076fc73bf37ffb6b3081e)
[3.14] gh-137490: Fix signal.sigwaitinfo() on NetBSD (GH-137523) (GH-138935)
Handle ECANCELED in the same way as EINTR to work around the Posix
violation in the NetBSD's implementation.
(cherry picked from commit 07d0b95b05dfaf5832f44c2fbc956761f9e29571)
[3.14] gh-137463: Update `validate_abstract_methods` in `test_collections.py` (GH-137464) (GH-137503)
Update `validate_abstract_methods` in `test_collections.py`
The test for missing abstract methods in `validate_abstract_methods` incorrectly attempted to instantiate the generated class `C` with an argument (`C(name)`), which always raises a `TypeError: C() takes no arguments`. Although the test originally passes, it passes for the wrong reason.
[3.14] gh-137986: Fix and improve the csv functions docstrings (GH-137987) (GH-138107)
The csv.register_dialect() docstring no longer imply that it returns a dialect.
All functions have now signatures.
(cherry picked from commit aa1dbd4dde32951de2e7438b56d6761001604ee2)
[3.14] gh-71679: Improve tests for repr() of bytes and bytearray (GH-138180) (GH-138182)
* Merge existing tests test_repr_str and test_to_str.
* Add more tests for non-printable and non-ASCII bytes.
* Add tests for special escape sequences ('\t\n\r').
* Add tests for slashes.
* Add more tests for quotes.
* Add tests for subclasses.
* Add test for non-ASCII class name.
* Only apply @check_bytes_warnings for str() tests.
(cherry picked from commit 0dbbf61cc2550428ff99daee367364c688031e1a)
[3.14] gh-138204: Forbid expansion of a shared anonymous mmap on Linux (GH-138220) (GH-138386)
This is a Linux kernel bug which caused a bus error.
https://bugzilla.kernel.org/show_bug.cgi?id=8691
(cherry picked from commit 33fcb0c4a054f646d9d3686c145209a893b09bb0)
[3.14] gh-88375, gh-111788: Fix parsing errors and normalization in robotparser (GH-138502) (GH-138548)
* Don't fail trying to parse weird patterns.
* Don't fail trying to decode non-UTF-8 "robots.txt" files.
* No longer ignore trailing "?" in patterns and URLs.
* Distinguish raw special characters "?", "=" and "&" from the
percent-encoded ones.
* Remove tests that do nothing.
(cherry picked from commit cb7ef18d70a0bc1363799e2dfa475db457155e43)
[3.14] gh-118981: multiprocessing.popen_spawn_posix, fix potential hang (gh-118982) (GH-138605)
fix potential hang.
It can happen that the child crashes right in the beginning for whatever reason. In this case, the parent will hang when writing into the pipe, because the child fd is not closed yet.
The normal pattern is to close the child fds right after the child proc is forked/executed/spawned, so when the child dies, then also the pipes will be closed, and there will be no hang (the parent gets SIGPIPE instead).
(cherry picked from commit 8ed5a2b56cc6a8635e586c641b0b837669f6677b)
Bénédikt Tran [Wed, 8 Oct 2025 10:09:45 +0000 (12:09 +0200)]
[3.14] gh-136912: fix handling of `OverflowError` in `hmac.digest` (GH-136917) (#137116)
The OpenSSL and HACL* implementations of HMAC single-shot
digest computation reject keys whose length exceeds `INT_MAX`
and `UINT32_MAX` respectively. The OpenSSL implementation
also rejects messages whose length exceed `INT_MAX`.
Using such keys in `hmac.digest` previously raised an `OverflowError`
which was propagated to the caller. This commit mitigates this case by
making `hmac.digest` fall back to HMAC's pure Python implementation
which accepts arbitrary large keys or messages.
This change only affects the top-level entrypoint `hmac.digest`, leaving
`_hashopenssl.hmac_digest` and `_hmac.compute_digest` untouched.
[3.14] gh-137706: make typing._is_unpacked_typevartuple check for `True` instead of truthy (GH-137712) (#138574)
gh-137706: make typing._is_unpacked_typevartuple check for `True` instead of truthy (GH-137712)
(cherry picked from commit 7e652f402f84b412ec46cec42cb103f489a0087e)
[3.14] GH-137484: Have `Tools/wasm/wasi` use the build triple instead of "build" (GH-137485) (#137487)
GH-137484: Have `Tools/wasm/wasi` use the build triple instead of "build" (GH-37485)
This should help prevent issuse where something like a container is used to do one build and then someone tries to build again locally.
(cherry picked from commit 0953200b136bcb3293cc1bd57a062796ffcd529d)
Co-authored-by: Brett Cannon <brett@python.org> Co-authored-by: Petr Viktorin <encukou@gmail.com>
[3.14] gh-138813: Fix mutable default kwargs={} in multiprocessing BaseProcess and DummyProcess to use None (GH-138814) (#139084)
gh-138813: Fix mutable default kwargs={} in multiprocessing BaseProcess and DummyProcess to use None (GH-138814)
* gh-138813: Default `BaseProcess` `kwargs` to `None` (GH-138814)
Set `BaseProcess.__init__(..., kwargs=None)` and initialize `kwargs` with
`dict(kwargs) if kwargs else {}`. This avoids a shared mutable default and
matches threading.Thread behavior.
Co-authored-by: Denis Sergeev <newjimbatler00@gmail.com> Co-authored-by: Gregory P. Smith <greg@krypto.org> Co-authored-by: Petr Viktorin <encukou@gmail.com> Co-authored-by: Gregory P. Smith <68491+gpshead@users.noreply.github.com>
[3.14] gh-126631: gh-137996: fix pre-loading of `__main__` (GH-135295) (#138607)
gh-126631: gh-137996: fix pre-loading of `__main__` (GH-135295)
gh-126631: gh-137996: fix pre-loading of `__main__`
The `main_path` parameter was renamed `init_main_from_name`, update the
forkserver code accordingly. This was leading to slower startup times when people
were trying to preload the main module.
Co-authored-by: Duane Griffin <duaneg@dghda.com> Co-authored-by: Gregory P. Smith <greg@krypto.org> Co-authored-by: Petr Viktorin <encukou@gmail.com> Co-authored-by: Gregory P. Smith <68491+gpshead@users.noreply.github.com>
[3.14] GH-137243: Have `Tools/wasm/wasi` detect WASI SDK installs in `/opt` when the release tarball is extracted (GH-137244) (GH-137250)
GH-137243: Have `Tools/wasm/wasi` detect WASI SDK installs in `/opt` when the release tarball is extracted (GH-137244)
(cherry picked from commit 2f1a9f2ed498b3cb2dd5f4616bf3a07fd1ad074c)
[3.14] gh-139700: Check consistency of the zip64 end of central directory record (GH-139702) (GH-139706)
Support records with "zip64 extensible data" if there are no bytes
prepended to the ZIP file.
(cherry picked from commit 162997bb70e067668c039700141770687bc8f267)
[3.14] gh-138432: Improved invalid path checking in zoneinfo.reset_tzpath() (GH-138433) (GH-138777)
* Improve error messages for path-like relative paths and path-like bytes paths.
* TZPATH is now always a tuple of strings.
(cherry picked from commit 859aecc33b82f45e5b7ae30138d28f2a2f33a575)
[3.14] Touch up `Setup.local` handling in `Tools/wasm/wasi` (GH-137051) (GH-137053)
Touch up `Setup.local` handling in `Tools/wasm/wasi` (GH-137051)
The comment in the generated file is now more self-explanatory. The checks for unexpected file contents are also strengthened.
(cherry picked from commit ec7fad79d24e79961b86e17177a32b32bb340fe5)
Co-authored-by: Brett Cannon <brett@python.org> Co-authored-by: Zachary Ware <zach@python.org>
[3.14] gh-126008: Improve docstrings for Tkinter cget and configure methods (GH-133303) (GH-137660)
* Explain the behavior of Widget.configure() depending on arguments.
* Unify descriptions.
* Replace "resource" with "option".
(cherry picked from commit 027cacb67ce1b16a96a6a2866299803eff16a4a6)
[3.14] gh-134466: Don't run when termios is inaccessible (GH-138911) (GH-139029)
Without the ability to set required capabilities, the REPL cannot
function properly (syntax highlighting and multiline editing can't
work).
We refuse to work in this degraded state.
[3.14] gh-139076: Fix regression in pydoc not showing extension functions (GH-139077) (GH-139160)
Fix a bug in the pydoc module that was hiding functions in a Python
module if they were implemented in an extension module and the module did
not have __all__.
(cherry picked from commit 7257b24140ac1b39fb8cfd4610134ec79575a396)
[3.14] gh-130567: Fix possible crash in locale.strxfrm() (GH-138940) (GH-139265)
On some macOS versions there was an off-by-one error in wcsxfrm() which
caused writing past the end of the array if its size was not calculated
by running wcsxfrm() first.
[3.14] gh-139283: correctly handle `size` limit in `cursor.fetchmany()` (GH-139296) (GH-139441)
Passing a negative or zero size to `cursor.fetchmany()` made it fetch all rows
instead of none.
While this could be considered a security vulnerability, it was decided to treat
this issue as a regular bug as passing a non-sanitized *size* value in the first
place is not recommended.
(cherry picked from commit bc172ee8307431caf4c89612e9e454081635191f)
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com> Co-authored-by: Petr Viktorin <encukou@gmail.com>
Co-authored-by: Peter Bierma <zintensitydev@gmail.com> Co-authored-by: Gregory P. Smith <greg@krypto.org>
* Only lock the SSL context, not the SSL socket.
This solves a deadlock when a socket is blocked while waiting on data,
which ended up causing a major regression in 3.13.6 (see gh-137583).
---------
Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
[3.14] gh-136914: Fix support of cached functions and properties in DocTest's lineno computation (GH-136930) (#137616)
gh-136914: Fix support of cached functions and properties in DocTest's lineno computation (GH-136930)
Previously, DocTest's lineno of functions and methods decorated with
functools.cache(), functools.lru_cache() and functools.cached_property()
was not properly returned (None was returned) because the
computation relied on inspect.isfunction() which does not consider the
decorated result as a function.
We now use the more generic inspect.isroutine(), as elsewhere
in doctest's logic.
[3.14] gh-137433: Fix deadlock with stop-the-world and daemon threads (gh-137735) (GH-138965)
There was a deadlock originally seen by Memray when a daemon thread
enabled or disabled profiling while the interpreter was shutting down.
I think this could also happen with garbage collection, but I haven't
seen that in practice.
The daemon thread could be hung while trying acquire the global rwmutex
that prevents overlapping global and per-interpreter stop-the-world events.
Since it already held the main interpreter's stop-the-world lock, it
also deadlocked the main thread, which is trying to perform interpreter
finalization.
Swap the order of lock acquisition to prevent this deadlock.
Additionally, refactor `_PyParkingLot_Park` so that the global buckets
hashtable is left in a clean state if the thread is hung in
`PyEval_AcquireThread`.
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