gh-141570: can_colorize: Expect fileno() to raise OSError, as documented (#141716)
In Fedora, we've been given a slightly incomplete reproducer for a problematic
Python 3.14 color-related change in argparse that leads to an exception when
Python is used from mod_wsgi: https://bugzilla.redhat.com/2414940
mod_wsgi replaces sys.stdout with a custom object that raises OSError on .fileno():
8460dbfcd5/src/server/wsgi_logger.c (L434-L440)
This should be supported, as the documentation of fileno explicitly says:
> An OSError is raised if the IO object does not use a file descriptor.
https://docs.python.org/3.14/library/io.html#io.IOBase.fileno
The previously expected exception inherits from OSError,
so it is still expected.
Fixes https://github.com/python/cpython/issues/141570
(cherry picked from commit 96f496a949)
Co-authored-by: Miro Hrončok <miro@hroncok.cz>
Co-authored-by: Cody Maloney <cmaloney@users.noreply.github.com>
gh-140938: Raise ValueError for infinite inputs to stdev/pstdev (GH-141531)
Raise ValueError for infinite inputs to stdev/pstdev
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(cherry picked from commit f0a8bc737a)
Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Split existing tests on smaller methods and move them to separate class.
Rename variable "content" to "it".
Use BytesIO instead of StringIO.
Add few more tests.
(cherry picked from commit 2fbd396666)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Fix error in assertion which causes failure if pos is equal to PY_SSIZE_T_MAX.
Fix undefined behavior in read() and readinto() if pos is larger that the size
of the underlying buffer.
(cherry picked from commit 7d54374f9c)
gh-140530: fix a reference leak in an error path for `raise exc from cause` (#140908)
Fix a reference leak in `raise E from T` when `T` is an exception
subtype for which `T.__new__` does not return an exception instance.
(cherry picked from commit 0c77e7c23b)
Previously, socket.if_nametoindex() and socket.if_indextoname() could raise
an `OSError` with a `None` errno. Now, the errno from libc is propagated.
(cherry picked from commit 3ce2d57b2f)
* Document that ensure_ascii=True forces escaping not only non-ASCII, but also
non-printable characters (the only affected ASCII character is U+007F).
* Ensure that the help output for the json module does not exceed 80
columns (except one long line in an example and generated lines).
* Add more tests.
(cherry picked from commit 7e90bac3cc)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
(cherry picked from commit fd17ee026f)
Add more tests for the altchars argument of b64decode() and for the map01
argument of b32decode().
(cherry picked from commit 13360efd38)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Jan-Eric Nitschke <47750513+JanEricNitschke@users.noreply.github.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Update selected RFC 2822 references to RFC 5322
RFC 2822 was obsoleted by RFC 5322 in 2008. This updates references
to use the current standard in documentation, docstrings, and comments.
It preserves RFC 2822 references in legacy API components to maintain their
historical context.
RFC 822 → RFC 2822 → RFC 5322 progression is explained where relevant.
In some places specific sections of RFC are referenced where it seems helpful.
Scout rule was applied in some places and RFC mentions format was
normalized in doc strings and comments.
(cherry picked from commit ce1bb85d28)
[3.13] gh-135307: Fix email error when policy max_line_length is set to 0 or None (GH-135367)
(cherry picked from commit 6d45cd8dbb)
Co-authored-by: Jiucheng(Oliver) <git.jiucheng@gmail.com>
RDM: Like the change made in a earlier PR to the folder, we can/must use 'maxlen' as a stand in for 'unlimited' when computing line lengths when max_line_length is 0 or None; otherwise the computation results in a traceback.
* gh-90949: add Expat API to prevent XML deadly allocations (CVE-2025-59375) (#139234)
Expose the XML Expat 2.7.2 mitigation APIs to disallow use of
disproportional amounts of dynamic memory from within an Expat
parser (see CVE-2025-59375 for instance).
The exposed APIs are available on Expat parsers, that is,
parsers created by `xml.parsers.expat.ParserCreate()`, as:
- `parser.SetAllocTrackerActivationThreshold(threshold)`, and
- `parser.SetAllocTrackerMaximumAmplification(max_factor)`.
(cherry picked from commit f04bea44c3)
(cherry picked from commit 68a1778b77)
* the "plaintext" element
* the RAWTEXT elements "xmp", "iframe", "noembed" and "noframes"
* optionally RAWTEXT (if scripting=True) element "noscript"
(cherry picked from commit a17c57eee5)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
gh-140082: Forward colorizing from libregrtest to unittest (GH-140083)
libregrtest redirects test output to a file as part of its operation.
When `unittest` checks to see if it should colorize with
`isatty(sys.stdout)` that fails resulting in no colorizing of the
unittest output.
Update `libregrtest` to set `FORCE_COLOR=1` when redirecting test output
so that unittest will do color printing.
(cherry picked from commit 6ff62ac4fb)
Co-authored-by: Cody Maloney <cmaloney@users.noreply.github.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-140702: Log color and GHA env vars in test.pythoninfo (GH-140747)
(cherry picked from commit 376559bf54)
Co-authored-by: Victor Stinner <vstinner@python.org>
* [3.13] gh-140607: Validate returned byte count in RawIOBase.read (GH-140611)
While `RawIOBase.readinto` should return a count of bytes between 0 and
the length of the given buffer, it is not required to. Add validation
inside RawIOBase.read() that the returned byte count is valid.
(cherry picked from commit 0f0a362768)
Co-authored-by: Cody Maloney <cmaloney@users.noreply.github.com>
Co-authored-by: Shamil <ashm.tech@proton.me>
Co-authored-by: Victor Stinner <vstinner@python.org>
* fixup: Use older attribute name
---------
Co-authored-by: Shamil <ashm.tech@proton.me>
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-140657: Don't rerun test_import single phase init test (GH-140712)
test_basic_multiple_interpreters_main_no_reset() leaks memory:
import_in_subinterp() is called with postcleanup=False.
(cherry picked from commit c6d4c79c9a)
Co-authored-by: Victor Stinner <vstinner@python.org>
[3.13] gh-140593: Fix a memory leak in function `my_ElementDeclHandler` of `pyexpat` (GH-140602)
Ensure that the memory allocated for the content model
passed to `my_ElementDeclHandler` is freed in all error
paths.
(cherry picked from commit e34a5e3304)
gh-140482: Preserve and restore `stty echo` as a test environment (GH-140519)
(cherry picked from commit b3c713a0af)
gh-140482: Restore `stty echo` as a test environment
Co-authored-by: Barry Warsaw <barry@python.org>
gh-139951: Test on GC collection disabled if threshold is zero (GH-140304)
(cherry picked from commit 5d0abb6971)
Co-authored-by: Mikhail Efimov <efimov.mikhail@gmail.com>
gh-138859: Account for `ParamSpec` defaults that are not lists … (GH-138868)
(cherry picked from commit 379fd020a0)
Co-authored-by: bzoracler <50305397+bzoracler@users.noreply.github.com>
gh-140170: Fix test_site with -s flag (GH-140179)
Commit
(cherry picked from commit 7ac94fcb1d)
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
