Serhiy Storchaka added the comment: This isn't a bug, this is a limitation of the implementation. Regular expression parser is recursive and Python has a limit for recursion depth. You can increase this limit if needed.
>>> import sys, re >>> sys.setrecursionlimit(2000) >>> re.compile('(' * 500) Traceback (most recent call last): File "/home/serhiy/py/cpython/Lib/sre_parse.py", line 437, in _parse_sub itemsappend(_parse(source, state)) File "/home/serhiy/py/cpython/Lib/sre_parse.py", line 778, in _parse p = _parse_sub(source, state) File "/home/serhiy/py/cpython/Lib/sre_parse.py", line 437, in _parse_sub itemsappend(_parse(source, state)) ... File "/home/serhiy/py/cpython/Lib/sre_parse.py", line 778, in _parse p = _parse_sub(source, state) File "/home/serhiy/py/cpython/Lib/sre_parse.py", line 437, in _parse_sub itemsappend(_parse(source, state)) File "/home/serhiy/py/cpython/Lib/sre_parse.py", line 781, in _parse source.tell() - start) sre_constants.error: missing ), unterminated subpattern at position 499 ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue25550> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com