Am Dienstag 06 Mai 2008 16:07:01 schrieb Mike Driscoll: > If so, then it looks like an Interface is a generic class with method > stubs. You can do that with Python just as easily by creating empty > methods with just the "pass" keyword.
Well, no. It's a litte different. Interfaces force to implement methods. Simple inheritance with method-stubs can't garantee that a specific method is reimplementat in a sub-class. Interfaces work at compile-time, while method-stubs raise at their first call, so in worst case, never (when the developer is available). > Since it's just a construct to implement polymorphism, I don't think > you'll lose anything. However, Python does not require you to re- > implement every method of the class it is inheriting from. That's the point. Interfaces garantee that a duck is a duck, an not only a chicken that quack. > You can just override those that you want and leave the others alone. Not always desirable. But often enough ;) -- http://mail.python.org/mailman/listinfo/python-list
