[issue30644] [EASY][doc] Document that signal.set_wakeup_fd(-1), unregister the previsouly set wakeup FD

[STINNER Victor]

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


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assignee: docs at python
components: Documentation
keywords: easy
nosy: docs at python, haypo
priority: normal
severity: normal
status: open
title: [EASY][doc] Document that signal.set_wakeup_fd(-1), unregister the previsouly set wakeup FD
versions: Python 3.7

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30644>
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