[issue40275] test.support has way too many imports

[STINNER Victor]

STINNER Victor <vstinner at python.org> added the comment:


New changeset e80697d687b610bd7fb9104af905dec8f0bc55a7 by Hai Shi in branch 'master':
bpo-40275: Adding threading_helper submodule in test.support (GH-20263)
https://github.com/python/cpython/commit/e80697d687b610bd7fb9104af905dec8f0bc55a7


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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40275>
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