[issue24426] re.split performance degraded significantly by capturing group

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Regular expression is optimized for the case when it starts with constant string or charset. It is no degradation when using '(\n)', but rather an optimization of '\n'.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue24426>
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