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

[Guido van Rossum]

Guido van Rossum added the comment:

OK, here's another try. I ran what you suggested for all three tests I added and they are all clean.  I realized that every single call to socketpair() is followed by two addCleanup calls, so I added a make_socketpair() helper method that does this.

----------
Added file: http://bugs.python.org/file33029/unregister8.diff

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