Serhiy Storchaka added the comment: Minimal example for your case is
re.match(r'(\w+\s*)+\s+\d+', 'Compiling Regular Patterns to Sequential Machines') It doesn't halt, it just needs too long time to finish. Your should rewrite the regular expression to avoid catastrophic backtracking (http://www.regular-expressions.info/catastrophic.html). For example rewrite the start of your expression as re.match(r'\w[\w\s]*\s\d+', 'Compiling Regular Patterns to Sequential Machines') ---------- nosy: +serhiy.storchaka _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue23541> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
