[issue22298] Lib/warnings.py _show_warning does not protect against being called with a file like object which is closed

[Antoine Pitrou]

Antoine Pitrou added the comment:

I frankly don't think silencing more exceptions is a good idea. If someone decided to close sys.stderr without setting sys.stderr to None I'd say it's a programming error and deserves to be notified...

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nosy: +brett.cannon, pitrou -Julius.Lehmann-Richter, terry.reedy

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22298>
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