STINNER Victor added the comment: OverflowError makes sense because math.factorial(10**19) will overflow in CPython on common platforms, even if it didn't overflowed yet.
On a supercomputer with a different Python implementation, you may be able to compute it. IMO An OverflowError is specific to a platform and Python implementation, whereas ValueError is "portable": any Python implementation must raise such error. I can imagine that a Python implementation may return a pseudo-int type which is supposed to be the result of math.factorial(), so you can compute for example math.factorial(10**19) % 2 (hint: result is 0). ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue20539> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
