[issue23839] Clear caches after every test

[Roundup Robot]

Roundup Robot added the comment:

New changeset bc81f2137706 by Serhiy Storchaka in branch '2.7':
Issue #23839: Various caches now are cleared before running every test file.
https://hg.python.org/cpython/rev/bc81f2137706

New changeset 89776a40e0ec by Serhiy Storchaka in branch '3.5':
Issue #23839: Various caches now are cleared before running every test file.
https://hg.python.org/cpython/rev/89776a40e0ec

New changeset c89f213b21e8 by Serhiy Storchaka in branch '3.6':
Issue #23839: Various caches now are cleared before running every test file.
https://hg.python.org/cpython/rev/c89f213b21e8

New changeset 5d1067e89717 by Serhiy Storchaka in branch 'default':
Issue #23839: Various caches now are cleared before running every test file.
https://hg.python.org/cpython/rev/5d1067e89717

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nosy: +python-dev

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue23839>
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