Alexander Belopolsky <belopol...@users.sourceforge.net> added the comment:
> I think it is presently a bug that a list containing > a NaN value compares equal to itself. Moreover, it also compares equal to another list containing the same NaN: >>> [nan] is [nan] False >>> [nan] == [nan] True Here is another case of is implies == optimization breaking NaN property in stdlib: >>> import ctypes >>> x = ctypes.c_double(nan) >>> x == x True ---------- nosy: +belopolsky _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue11945> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
