Serhiy Storchaka <storchaka+cpyt...@gmail.com> added the comment:
And this case looks like playing with implementation details.
The official way to make the specified warning emitted more than once is to use
warnings.filterwarnings():
>>> import warnings
>>> warnings.filterwarnings('always', "NOBODY expects the Spanish
>>> Inquisition!", UserWarning)
>>> warnings.warn("NOBODY expects the Spanish Inquisition!")
<stdin>:1: UserWarning: NOBODY expects the Spanish Inquisition!
>>> warnings.warn("NOBODY expects the Spanish Inquisition!")
<stdin>:1: UserWarning: NOBODY expects the Spanish Inquisition!
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue34948>
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