[issue38582] re: backreference number in replace string can't >= 100

[Serhiy Storchaka]

Serhiy Storchaka <storchaka+cpython at gmail.com> added the comment:

I do not believe somebody uses handwritten regular expressions with more than 100 groups. But if you generate regular expression, you can use named groups (?P<g12345>...) (?P=g12345).

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<https://bugs.python.org/issue38582>
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