test_sre
sre.match(r'(x)*?y', 50000*'x'+'y').span() FAILED
Traceback (most recent call last):
  File "../lib/test\test_sre.py", line 18, in test
    r = eval(expression)
  File "<string>", line 0, in ?
  File "c:\pythonware\py21\python-2.1\lib\sre.py", line 52, in match
    return _compile(pattern, flags).match(string)
RuntimeError: maximum recursion limit exceeded