[issue30844] selectors and asyncio: add_excepter(), 3rd argument of select.select()

[STINNER Victor]

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


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title: selector_events.py lacks exceptional event support -> selectors and asyncio: add_excepter(), 3rd argument of select.select()
versions:  -Python 3.4, Python 3.5, Python 3.6

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30844>
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