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[3.13] gh-132124: improve safety nets for creating AF_UNIX socket files (GH-134085) (#134448)

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* gh-132124: improve safety nets for creating AF_UNIX socket files (GH-134085)

* ensure that we can create AF_UNIX socket files
* emit a warning if system-wide temporary directory is used
(cherry picked from commit 1a07a01014)

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>

* rename warn -> _warn for the 3.13.x backport

* Update Misc/NEWS.d/next/Library/2025-05-16-12-40-37.gh-issue-132124.T_5Odx.rst

---------

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Gregory P. Smith <greg@krypto.org>
This commit is contained in:
Miss Islington (bot) 2025-08-04 16:38:49 +02:00 • committed by GitHub
parent 235d380c4c
commit 932221bc01
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4 changed files with 84 additions and 4 deletions
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5
Lib/tempfile.py
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@ -180,7 +180,7 @@ def _candidate_tempdir_list():
return dirlist
def _get_default_tempdir():
def _get_default_tempdir(dirlist=None):
"""Calculate the default directory to use for temporary files.
This routine should be called exactly once.
@ -190,7 +190,8 @@ def _get_default_tempdir():
service, the name of the test file must be randomized."""
namer = _RandomNameSequence()
dirlist = _candidate_tempdir_list()
if dirlist is None:
dirlist = _candidate_tempdir_list()
for dir in dirlist:
if dir != _os.curdir: