On Sun, Apr 28, 2013 at 11:50:16PM -0700, Ethan Furman wrote: > In other words, currently: > > class Color(Enum): > red = 1 > green = 2 > blue = 3 > > class MoreColor(Color): > cyan = 4 > magenta = 5 > yellow = 6 > black = 7 > > MoreColor.red is Color.red # True
Correct. > But as soon as: > > type(Color.red) is Color # True > type(MoreColor.red) is MoreColor # True I don't believe this is correct. As I understand it, the proposal is the weaker guarantee: isinstance(Color.red, Color) # True, possibly using __instancecheck__ Since red is not defined by MoreColor, there's no reason to expect that it will be a MoreColor instance. As far as I understand it, there is no guarantee that isinstance(MoreColor.red, MoreColor) will be true, even if that is possible using __instancecheck__. -- Steven _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
