[issue42128] Structural Pattern Matching (PEP 634)

[Saiyang Gou]

Change by Saiyang Gou <gousaiyang223 at gmail.com>:


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nosy: +gousaiyang
nosy_count: 12.0 -> 13.0
pull_requests: +24335
pull_request: https://github.com/python/cpython/pull/25642

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue42128>
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