STINNER Victor added the comment:
os.uname: posix.uname_result(sysname='Darwin', nodename='Mac-483.local',
release='17.7.0', version='Darwin Kernel Version 17.7.0: Wed Apr 24 21:17:24
PDT 2019; root:xnu-4570.71.45~1/RELEASE_X86_64', machine='x86_64')
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New submission from STINNER Victor :
I backported a change to 3.8:
https://github.com/python/cpython/pull/14000
The macOS job of Azure Pipelines failed badly:
https://dev.azure.com/Python/cpython/_build/results?buildId=45071&view=results
* test_importlib/test_locks.py: test_deadlock() => TIMEO