Issue 22920: Crash with itertools.chain.from_iterable (original) (raw)

import itertools

l = [] it = itertools.chain.from_iterable(l) l.append(it) next(it)

Ian Kelly (python-list, version unspecified) got "Segmentation fault (core dumped)". With 2.7, 3.4.2, 3.5, I get same in interactive interpreter, the Windows "python has stopped working" box from console, or subprocess hang with Idle.