[issue8757] Automatic set-to-frozenset conversions not thread-safe

[Ezio Melotti]

Ezio Melotti <ezio.melotti at gmail.com> added the comment:

Can the attached script be converted in a unittest that tests that the fix is correct?

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nosy: +ezio.melotti

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue8757>
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