Matthew Barnett added the comment: It takes a long time due to excessive backtracking.
The regex implementation on PyPI finishes quickly because it contains some extra logic to reduce the chances of that happening, but it could be tricky trying to incorporate that into the existing re module. Unless someone else wants have a go, it's probably best to mark this as "won't fix". ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue19994> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com