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3 changes: 2 additions & 1 deletion Doc/library/threading.rst
Original file line number Diff line number Diff line change
Expand Up @@ -400,7 +400,8 @@ All methods are executed atomically.
The *timeout* parameter is new.

.. versionchanged:: 3.2
Lock acquires can now be interrupted by signals on POSIX.
Lock acquisition can now be interrupted by signals on POSIX if the
underlying threading implementation supports it.


.. method:: release()
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8 changes: 8 additions & 0 deletions Lib/test/test_threadsignals.py
Original file line number Diff line number Diff line change
Expand Up @@ -78,6 +78,10 @@ def alarm_interrupt(self, sig, frame):

@unittest.skipIf(USING_PTHREAD_COND,
'POSIX condition variables cannot be interrupted')
@unittest.skipIf(sys.platform.startswith('linux') and
not sys.thread_info.version,
'Issue 34004: musl does not allow interruption of locks '
'by signals.')
# Issue #20564: sem_timedwait() cannot be interrupted on OpenBSD
@unittest.skipIf(sys.platform.startswith('openbsd'),
'lock cannot be interrupted on OpenBSD')
Expand Down Expand Up @@ -105,6 +109,10 @@ def test_lock_acquire_interruption(self):

@unittest.skipIf(USING_PTHREAD_COND,
'POSIX condition variables cannot be interrupted')
@unittest.skipIf(sys.platform.startswith('linux') and
not sys.thread_info.version,
'Issue 34004: musl does not allow interruption of locks '
'by signals.')
# Issue #20564: sem_timedwait() cannot be interrupted on OpenBSD
@unittest.skipIf(sys.platform.startswith('openbsd'),
'lock cannot be interrupted on OpenBSD')
Expand Down