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bpo-23395: Fix PyErr_SetInterrupt if the SIGINT signal is ignored or not handled (GH-7778)

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``_thread.interrupt_main()`` now avoids setting the Python error status if the ``SIGINT`` signal is ignored or not handled by Python.
This commit is contained in:
Matěj Cepl 2019-05-23 22:30:00 +02:00 • committed by Antoine Pitrou
parent b82e17e626
commit 608876b6b1
6 changed files with 59 additions and 13 deletions
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12
Doc/c-api/exceptions.rst
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@ -519,13 +519,13 @@ Signal Handling
single: SIGINT
single: KeyboardInterrupt (built-in exception)
This function simulates the effect of a :const:`SIGINT` signal arriving --- the
next time :c:func:`PyErr_CheckSignals` is called, :exc:`KeyboardInterrupt` will
be raised. It may be called without holding the interpreter lock.
.. % XXX This was described as obsolete, but is used in
.. % _thread.interrupt_main() (used from IDLE), so it's still needed.
Simulate the effect of a :const:`SIGINT` signal arriving. The next time
:c:func:`PyErr_CheckSignals` is called, the Python signal handler for
:const:`SIGINT` will be called.
If :const:`SIGINT` isn't handled by Python (it was set to
:data:`signal.SIG_DFL` or :data:`signal.SIG_IGN`), this function does
nothing.
.. c:function:: int PySignal_SetWakeupFd(int fd)