[New-bugs-announce] [issue30131] test_logging leaks a "dangling" thread

[STINNER Victor]

New submission from STINNER Victor:

Example on Windows from AppVeyor:

https://ci.appveyor.com/project/python/cpython/build/3.7.0a0.1402

Warning -- threading._dangling was modified by test_logging
  Before: <_weakrefset.WeakSet object at 0x027CBE30>
  After:  <_weakrefset.WeakSet object at 0x027CBFF0>

I also saw this warning on FreeBSD buildbots.

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components: Tests
messages: 292058
nosy: haypo
priority: normal
severity: normal
status: open
title: test_logging leaks a "dangling" thread
type: resource usage
versions: Python 3.7

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30131>
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