[issue31990] Pickling deadlocks in thread with python -m

[Sara Kelley]

Sara Kelley <serakeri at gmail.com> added the comment:

https://docs.python.org/3/using/cmdline.html#cmdoption-m

The documentation says you must not give a file extension with the module option. Because the extension was given the thread is deadlocking in importlib._bootstrap when trying to acquire the module lock. The hang occurs in the script because join() is waiting for the deadlocked thread.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue31990>
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