gh-138991: Update dataclass documentation for new eq behavior in Python 3.13 (GH-139007)
And add tests.
(cherry picked from commit 402668b2b1)
Co-authored-by: Aniket <148300120+Aniketsy@users.noreply.github.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-151284: Fix test_capi on UBSan (GH-151286)
Comment two checks relying on undefined behavior in
test_fromwidechar() of test_capi.
Enable test_capi in GitHub Action "Reusable Sanitizer".
(cherry picked from commit d87d772873)
Co-authored-by: Victor Stinner <vstinner@python.org>
[3.14][3.15] gh-151253: Dump the Python path configuration on _PyCodec_InitRegistry() failure (#151250) (#151269) (#151283)
[3.15] gh-151253: Dump the Python path configuration on _PyCodec_InitRegistry() failure (#151250) (#151269)
gh-151253: Dump the Python path configuration on _PyCodec_InitRegistry() failure (#151250)
If "import encodings" fails at Python startup, dump the Python path
configuration to help users debugging their configuration. The
encodings module is the first module imported during Python startup.
(cherry picked from commit 7b6e98911e)
(cherry picked from commit 10f616cf39)
(cherry picked from commit b3a7758d8a)
[3.14] GHA: Display output when a sanitizer test fails (#151268) (#151273)
GHA: Display output when a sanitizer test fails (#151268)
Modify GitHub Action "Reusable Sanitizer" to display output when a
test fails: pass -W option.
(cherry picked from commit 3a8bebd86f)
(cherry picked from commit bc75e47ffa)
[3.14] gh-143988: Fix re-entrant mutation crashes in socket sendmsg/recvmsg_into (#143987) (#151251)
gh-143988: Fix re-entrant mutation crashes in socket sendmsg/recvmsg_into (#143987)
Fix crashes in socket.sendmsg() and socket.recvmsg_into() that could
occur if buffer sequences are mutated re-entrantly during argument
parsing via __buffer__ protocol callbacks.
The bug occurs because:
1. PySequence_Fast() returns the original list object when the input
is already a list (not a copy).
2. During iteration, PyObject_GetBuffer() triggers __buffer__
callbacks which may clear the list.
3. Subsequent iterations access invalid memory (heap OOB read).
The fix replaces PySequence_Fast() with PySequence_Tuple() which
always creates a new tuple, ensuring the sequence cannot be mutated
during iteration.
(cherry picked from commit 896f7fdc7d)
(cherry picked from commit 632daaf5e9)
Co-authored-by: tonghuaroot (童话) <tonghuaroot@gmail.com>
Co-authored-by: tonghuaroot <23011166+tonghuaroot@users.noreply.github.com>
[3.14] gh-89554: Document socket.SocketType as a class (#150683) (#151245)
gh-89554: Document socket.SocketType as a class (#150683)
socket.SocketType is a class (re-exported from _socket as an alias of
_socket.socket, the base class of socket.socket), but was documented with
the ".. data::" directive, so ":class:" cross-references to it cannot
resolve against a py:class target.
Switch the entry to ".. class::", correct the misleading description
(SocketType is the base class of the socket type, not "type(socket(...))"
which is socket.socket; addresses gh-88427), move it into the Socket
Objects section, and document the socket object methods and attributes
nested under the socket class, dropping the redundant "socket." prefix.
Backport to 3.13: Replace ":platform: Windows" with
".. availability:: Windows" in ioctl() method.
(cherry picked from commit a621e8ad81)
(cherry picked from commit 4ef6a375a1)
Co-authored-by: Bernát Gábor <gaborjbernat@gmail.com>
gh-150988: Fix refleak in `OSError` when attrs are set before `super().__init__()` (GH-150990)
(cherry picked from commit f2a0f82282)
Co-authored-by: Lukas Geiger <lukas.geiger94@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
[3.15] gh-143008: Fix race re-initializing TextIOWrapper (#151203)
__init__() changes multiple variables and may be called more than once
from multiple threads.
(cherry picked from commit 0318867acf)
Co-authored-by: Cody Maloney <cmaloney@users.noreply.github.com>
[3.14] gh-149231: tomllib: Limit the number of parts in a key (GH-149233) (GH-149815)
(cherry picked from commit bc7c102f34)
(cherry picked from commit 724a5e5e3b)
Co-authored-by: Stan Ulbrych <stan@python.org>
gh-151112: Fix double free in `assemble_init` when out of memory (GH-151142)
(cherry picked from commit 580499177c)
Co-authored-by: Stan Ulbrych <stan@python.org>
Expose the XML Expat 2.7.2 APIs to tune protections against
"billion laughs" [1] attacks.
The exposed APIs are available on Expat parsers, that is,
parsers created by `xml.parsers.expat.ParserCreate()`, as:
- `parser.SetBillionLaughsAttackProtectionActivationThreshold(threshold)`, and
- `parser.SetBillionLaughsAttackProtectionMaximumAmplification(max_factor)`.
This completes the work in f04bea44c3,
and improves the existing related documentation.
[1]: https://en.wikipedia.org/wiki/Billion_laughs_attack
(cherry picked from commit 666112376d)
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Nonatomic move might be used even if the files are
on the same filesystem in some cases.
(cherry picked from commit 6ecd197c03)
Co-authored-by: Fang Li <fangli@users.noreply.github.com>
