On 04/27/2013 08:59 PM, Greg Ewing wrote:
It's possible to make it work, I think. The __call__ method of the metaclass is going to have to do something special anyway, so that Planet(3) can look up and return an existing instance instead of making a new one. And if it doesn't make a new instance, it's not going to call the __init__ method.
It works beautifully! It's not even complicated because the metaclass __new__ uses object.__new__ to create the instances, so EnumType.__call__ is /only/ called in cases like Planet(3), or Planet('EARTH').
Sweet! -- ~Ethan~ _______________________________________________ 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
