[issue43498] "dictionary changed size during iteration" error in _ExecutorManagerThread

[Thomas Petazzoni]

Thomas Petazzoni <thomas.petazzoni at free-electrons.com> added the comment:

For the record: we're seeing this issue ~50 times a day on our build infrastructure.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue43498>
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