[issue32147] improve performance of binascii.unhexlify() by using conversion table

[Sergey Fedoseev]

Change by Sergey Fedoseev <fedoseev.sergey at gmail.com>:


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keywords: +patch
pull_requests: +4508
stage:  -> patch review

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue32147>
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