[issue37380] subprocess.Popen._cleanup() "The handle is invalid" error when some old process is gone

[STINNER Victor]

STINNER Victor <vstinner at redhat.com> added the comment:

> subprocess._active[0]._handle.Close()

Why would you do that? You should not access the private _active list, nor access the private _handle attribute. I understand that it's a way to trigger such bug, but is it possible to trigger this bug without accessing any private attribute?


> I wouldn't want _internal_poll to silence this error, but maybe it could be translated into a warning

I disagree with that. It's very bad is suddenly the handle becomes invalid for no obvious reason. It's better to get an hard error (exception) in such case.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue37380>
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