https://github.com/python/cpython/commit/fdbdd9fb5cff620737baa6f913bfcbb865bf56c7 commit: fdbdd9fb5cff620737baa6f913bfcbb865bf56c7 branch: 3.14 author: Miss Islington (bot) <[email protected]> committer: ZeroIntensity <[email protected]> date: 2026-02-12T23:21:17Z summary:
[3.14] gh-144706: Warn against using synchronization primitives within signal handlers (GH-144736) (GH-144767) gh-144706: Warn against using synchronization primitives within signal handlers (GH-144736) (cherry picked from commit 945bf8ce1bf7ee3881752c2ecc129e35ab818477) Co-authored-by: Robsdedude <[email protected]> files: M Doc/library/signal.rst diff --git a/Doc/library/signal.rst b/Doc/library/signal.rst index 995f800528f376..41a08fb165e2b6 100644 --- a/Doc/library/signal.rst +++ b/Doc/library/signal.rst @@ -68,6 +68,11 @@ the synchronization primitives from the :mod:`threading` module instead. Besides, only the main thread of the main interpreter is allowed to set a new signal handler. +.. warning:: + + Synchronization primitives such as :class:`threading.Lock` should not be used + within signal handlers. Doing so can lead to unexpected deadlocks. + Module contents --------------- _______________________________________________ Python-checkins mailing list -- [email protected] To unsubscribe send an email to [email protected] https://mail.python.org/mailman3//lists/python-checkins.python.org Member address: [email protected]
