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

[Guido van Rossum]

Guido van Rossum added the comment:

Sadly, the optimistic code doesn't work on Windows.  I think it may be because the socketpair() helper at the top of test_selectors.py uses an extra socket ('l') and the handles just don't match up (I get a failure on assert wr2.fileno() == w).  So I propose to stick with the current solution of skipping the test on Windows.

I'll close this bug in 24 hours unless I get a response sooner.

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<http://bugs.python.org/issue19876>
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