Alexander Belopolsky <alexander.belopol...@gmail.com> added the comment:
On Wed, Apr 21, 2010 at 2:33 PM, Jess Austin <rep...@bugs.python.org> wrote: .. > It might seem like the latter behavior is marginally better, but really this > is just a mess, since a date-datetime comparison TypeErrors in all > directions. I appreciate Alexander's more experienced perspective, but it's > not obvious to me that this problem is insoluble simply due to OOP > algebra. I'm going to keep tinkering with this to see if there isn't a way > to satisfy his concerns AND fix these bugs WITHOUT breaking the > established (and admittedly anti-OOP) behavior that dates are not equal to > datetimes. > I certainly don't have a proof that this is impossible, so best of luck. Note, however that the problematic behavior is due to D/DT classes implementor's choice not to derive DT from D. Whether resulting violation of the symmetry of equality is a bug in python or D/DT implementation is at least an open question. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue5516> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
