[3.14] gh-137113 docs: note readline no longer supported in REPL after 3.13 (GH-137142) (GH-143791)
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.
[3.14] gh-141004: Don't trigger `run-tests` when `Tools/check-c-api-docs/ignored_c_api.txt` is changed (GH-143583) (GH-143793)
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>
[3.14] gh-143706: Fix sys.argv not set during multiprocessing forkserver `__main__` preload (GH-143717) (#143763)
gh-143706: Fix sys.argv not set during multiprocessing forkserver `__main__` preload (GH-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.
(cherry picked from commit 298d5440eb83f2dfd5651bac86d1592ec358d54c)
Co-authored-by: Gregory P. Smith <68491+gpshead@users.noreply.github.com>
[3.14] gh-139707: Copy-strip change to idle.rst into idlelib (GH-143718) (#143744)
gh-139707: Copy-strip change to idle.rst into idlelib (GH-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.
(cherry picked from commit ec254e2b40d70242f7b1724867a4aac4219fdc08)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
[3.14] gh-143196: Fix crash in non-standard use of internal JSON encoder object (GH-143618) (GH-143748)
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.
(cherry picked from commit c559135c931789ebc752ae68814858c398cb798b)
[3.14] gh-143544: Fix possible use-after-free in the JSON decoder when JSONDecodeError disappears during raising it (GH-143561) (#143733)
gh-143544: Fix possible use-after-free in the JSON decoder when JSONDecodeError disappears during raising it (GH-143561)
(cherry picked from commit c3157480601499565fd42a8afbdb0207328ac484)
[3.14] gh-127750: Fix annotations in singledispatchmethod signature tests (GH-143571) (GH-143707)
These tests relied on a bug -- gh-84644, which is that singledispatch
doesn't verify the annotation is on the "first" parameter.
(cherry picked from commit 620a5b92693ac1b2cef1f90fd3c2dba1bb794552)
Serhiy Storchaka [Sun, 11 Jan 2026 12:37:00 +0000 (14:37 +0200)]
[3.14] gh-143638: Forbid cuncurrent use of the Pickler and Unpickler objects in C implementation (GH-143664) (GH-143686)
Previously, this could cause crash or data corruption, now concurrent calls
of methods of the same object raise RuntimeError.
(cherry picked from commit d1282efb2b847bf9274d78c5f15ea00499b2c894)
[3.14] gh-141536: Fix a crash when running test_capi *after* test_code in the same process (GH-141537) (#143522)
gh-141536: Fix a crash when running test_capi *after* test_code in the same process (GH-141537)
(cherry picked from commit b2827de18fe88152dc38c1aa76c39b69ef59cb6f)
[3.14] gh-142829: Fix use-after-free in `Context.__eq__` via re-entrant `ContextVar.set` (GH-142905) (#143627)
gh-142829: Fix use-after-free in `Context.__eq__` via re-entrant `ContextVar.set` (GH-142905)
(cherry picked from commit a4086d7f89e5d388e4ffcdb13e4fba0255234286)
[3.14] gh-143006: Fix and optimize mixed comparison of float and int (GH-143084) (GH-143623)
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.
(cherry picked from commit 66bca383bd3b12d21e879d991d77b37a4c638f88)
gh-143460: Skip infinite recusion tests for infinite stack size (GH-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.
(cherry picked from commit 61e036691c8ac70facb8d3fc39c670bde56218e8)
Signed-off-by: Jan André Reuter <j.reuter@fz-juelich.de> Co-authored-by: Jan André Reuter <jan.andre.reuter@hotmail.de>
[3.14] gh-143378: Fix use-after-free when BytesIO is concurrently mutated during write operations (GH-143408) (GH-143599)
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.
[3.14] gh-142095: Use thread local frame info in `py-bt` and `py-bt-full` when available (gh-143371) (#143566)
In optimized and `-Og` builds, arguments and local variables are frequently
unavailable in gdb. This makes `py-bt` fail to print anything useful. Use the
`PyThreadState*` pointers `_Py_tss_gilstate` and `Py_tss_tstate` to find the
interpreter frame if we can't get the frame from the
`_PyEval_EvalFrameDefault` call.
(cherry picked from commit 49c3b0a67a77bb42e736cea7dcbc1aa8fa704074)
Co-authored-by: Sam Gross <colesbury@gmail.com> Co-authored-by: Victor Stinner <vstinner@python.org>
[3.14] gh-133315: Document that compat32 should not be used with MIMEPart/EmailMessage (GH-143307) (#143496)
gh-133315: Document that compat32 should not be used with MIMEPart/EmailMessage (GH-143307)
(cherry picked from commit ff7d1cec41f391270560b9f4726791d8476c6eba)
[3.14] gh-75572: Forward-port test_xpickle from Python 2 to 3 (GH-22452) (GH-143485)
Move data classes used in tests to separate file test_picklecommon.py,
so it can be imported in old Python versions.
(cherry picked from commit 8735daf3e82d50defd791e9be7b9ae6843bc4ed1)
Co-authored-by: Ken Jin <kenjin@python.org> Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
The documentation incorrectly stated that the file descriptor is not
inherited by child processes. In reality, the close-on-exec flag (when
available) only prevents inheritance across exec() calls, not fork().
(cherry picked from commit e79c9b703117d8b0e7c4d86b704e2e7f120db883)
Co-authored-by: ADITYA RAI <adi.hack1234@gmail.com> Co-authored-by: Victor Stinner <vstinner@python.org>
Stan Ulbrych [Tue, 6 Jan 2026 11:48:45 +0000 (11:48 +0000)]
[3.14] gh-143003: Fix possible shared buffer overflow in `bytearray.extend()` (GH-143086) (GH-143447)
When __length_hint__() returns 0 for non-empty iterator, the data can be
written past the shared 0-terminated buffer, corrupting it.
(cherry picked from commit 522563549a49d28e763635c58274a23a6055f041)
[3.14] gh-143148: Replace pre-commit with prek in CI (GH-143149) (#143360)
Co-authored-by: Johann Christensen <johannchristensen@outlook.de> Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com> Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com> Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
[3.14] Update docstrings of `typing.Hashable`, `typing.List`, etc., to reflect their deprecation (GH-143295) (#143348)
Update docstrings of `typing.Hashable`, `typing.List`, etc., to reflect their deprecation (GH-143295)
(cherry picked from commit 18f3c59e57e5d30218210136060310310b10ff72)
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
[3.14] gh-140920: remove incorrect mentions to `concurrent.futures.interpreter.ExecutionFailed` (GH-141723) (#143315)
gh-140920: remove incorrect mentions to `concurrent.futures.interpreter.ExecutionFailed` (GH-141723)
Remove documentation for inexistant `concurrent.futures.interpreter.ExecutionFailed`
and replace its occurrences by `concurrent.interpreters.ExecutionFailed` since this
is the documented exception.
(cherry picked from commit c5215978ebfea9471f313d5baa70a4e68bfb798b)
[3.14] gh-130167: Add a What's New entry for changes to ``textwrap.{de,in}dent`` (GH-131924) (#143292)
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com> Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com> Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com> Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
[3.14] gh-69686: Remove untrue part of `__import__` replacement docs (GH-143261) (#143281)
gh-69686: Remove untrue part of `__import__` replacement docs (GH-143261)
Remove untrue part of `__import__` replacement docs
The original statement effectively says that replacing `__import__` at global scope affects import statements, and not only that, but only import statements within the rest of the executing module. None of that has been true since at least Python 2.7, I think.
[3.14] gh-143200: fix UAFs in `Element.__{set,get}item__` when the element is concurrently mutated (GH-143226) (#143273)
gh-143200: fix UAFs in `Element.__{set,get}item__` when the element is concurrently mutated (GH-143226)
(cherry picked from commit b6b0e14b3d4aa9e9b89bef9a516177238883e1a7)
[3.14] gh-142994, gh-142996: document missing async generator and coroutine field entries in `inspect` (GH-142997) (#143258)
gh-142994, gh-142996: document missing async generator and coroutine field entries in `inspect` (GH-142997)
(cherry picked from commit 0efbad60e13cbc8b27a5ca3a5d9afcdcc957b19e)
Changed condition to evaluate if timeout is less than or equals to 0. This is needed for simulated time environments such as Shadow where the time will match exactly on the boundary.
[3.14] gh-142557: fix UAF in `bytearray.__mod__` when object is mutated while formatting `%`-style arguments (GH-143213) (#143227)
gh-142557: fix UAF in `bytearray.__mod__` when object is mutated while formatting `%`-style arguments (GH-143213)
(cherry picked from commit 61ee04834b096be00678c6819b4957f3f4413a5e)
projects / thirdparty / Python / cpython.git / log
