[issue41520] 3.8.5 regression, warnings.simplefilter('error', SyntaxWarning) does not raise.

[Matthias Bussonnier]

Change by Matthias Bussonnier <bussonniermatthias at gmail.com>:


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versions: +Python 3.10, Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue41520>
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