> Python's re module even implements Perl regex!

Nope. There are a lot of features you won't find in Python or PCRE (and occasionally vice versa.)

There are also examples where Sed dethrones Perl, it's a question of use case.

There are also pathological cases of Regexes (with nested quantifiers) which never terminate in one engine but quickly yield results in another.

Cheers Rolf
(addicted to the Perl Programming Language :)
see Wikisyntax for the Monastery

In reply to Re^2: Python regex faster than Perl? by LanX
in thread Python regex faster than Perl? by dave93

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