[docs] [issue19876] selectors (and asyncio?): document behaviour on closed files/sockets

[Guido van Rossum]

Guido van Rossum added the comment:

Ping? Charle-François, what do you think of my patch to ignore OSError in unregister()?

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assignee: docs at python -> neologix

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19876>
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