Mark Dickinson added the comment: > Why does Python return the same representation for positive and negative NaN?
History, perhaps? In any case, the sign of a NaN isn't useful information in the same way that the sign of an infinity is. The IEEE 754 standard explicitly refuses to attach any meaning to the sign bit of a NaN. And if we were aiming for a full and faithful representation of NaNs, we'd want to output the payload, too (which is just about as meaningless / meaningful as the sign bit). ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue23185> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
