[issue37723] important performance regression on regular expression parsing

[yannvgn]

Change by yannvgn <hi at yannvgn.io>:


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keywords: +patch
pull_requests: +14788
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/15030

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue37723>
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