signal.sigtimedwait(sigset, timeout)
Like sigwaitinfo(), but takes an additional timeout argument specifying a timeout. If timeout is specified as 0, a poll is performed. Returns None if a timeout occurs.
Availability: Unix (see the man page sigtimedwait(2) for further information).
See also pause(), sigwait() and sigwaitinfo().
New in version 3.3.
Changed in version 3.5: The function is now retried with the recomputed timeout if interrupted by a signal not in sigset and the signal handler does not raise an exception (see PEP 475 for the rationale).
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