steven Michalske added the comment: The RE compiler will not error out, with a back reference in there... It treats the {\1} as a literal {\1} in the string.
In [180]: re.search("(\d) fo.{\1}", '3 foo{\1}').group(0) Out[180]: '3 foo{\x01}' ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue20678> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com