Mark Dickinson <dickinsm@gmail.com> added the comment: I've fixed some of the inaccurate comments in Objects/longobject.c, for the default branch; I'm still looking at the Doc update. This really is a bit of a mess, especially for cases like PyLong_AsVoidPtr, which can either end up calling PyLong_As(Long)Long (which allows conversion via __int__), or PyLong_AsUnsigned(Long)Long (which doesn't). Ultimately, I think it would make sense to remove all __int__ conversions from Objects/longobject.c; this would affect: - PyLong_AsLongAndOverflow - PyLong_AsLong - PyLong_AsUnsignedLongMask and the 'LongLong' variants of these. The ramifications of such a change might be quite long-reaching; in particular, I seem to recall that this would affect the 'getargs' machinery. It could be fun to remove these conversions and see how much of the test-suite fails. :-) ---------- _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue12965> _______________________________________