[issue40907] cpython/lib/queue.py: put() does not acquire not_empty before notifying on it

[Raymond Hettinger]

Raymond Hettinger <raymond.hettinger at gmail.com> added the comment:

Also note that threading.Condition.notify() would raise a RuntimeError if the underlying lock had not been acquired.

Have you observed any behavior to the contrary?

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40907>
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