New submission from Alexandre Vassalotti: If an iterator with a __length_hint__ method that returns a negative integer is passed to list(), a SystemError is raised.
>>> class A: ... def __iter__(self): ... return self ... def __length_hint__(self): ... return -1 ... >>> list(A()) Traceback (most recent call last): File "<stdin>", line 1, in <module> SystemError: NULL result without error in PyObject_Call ---------- messages: 58176 nosy: alexandre.vassalotti priority: normal severity: normal status: open title: An errornous __length_hint__ can make list() raise a SystemError type: behavior versions: Python 2.5, Python 2.6, Python 3.0 __________________________________ Tracker <[EMAIL PROTECTED]> <http://bugs.python.org/issue1553> __________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
