[issue32692] [3.6] test_threading.test_set_and_clear fails in AppVeyor CI

[miss-islington]

Change by miss-islington <mariatta.wijaya+miss-islington at gmail.com>:


----------
pull_requests: +7874

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue32692>
_______________________________________