[issue21925] ResourceWarning sometimes doesn't display

[Roundup Robot]

Roundup Robot added the comment:

New changeset f474898ef6de by Victor Stinner in branch '3.5':
Issue #21925: Fix test_warnings for release mode
https://hg.python.org/cpython/rev/f474898ef6de

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue21925>
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