[issue22018] Add a new signal.set_wakeup_socket() function

[STINNER Victor]

Changes by STINNER Victor <victor.stinner at gmail.com>:


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title: signal: accept socket for signal.set_wakeup_fd() -> Add a new signal.set_wakeup_socket() function

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22018>
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