Steven D'Aprano <[EMAIL PROTECTED]> writes: > > Or (defmethod name :after ..)? > I don't even know what that means. Would you like to translate?
This is something that I've wished Python had. If I try to describe it I'll probably get it wrong. But basically say Foo is a class with multiple superclasses. The superclasses each define a "name" method and Foo itself may also define a "name" method. When you call Foo.name() you want that to invoke both Foo's name method and the superclass methods. In Python you have to do grotty things like super(Bar,self).name() in the Foo.name() to make this happen by hand, and you have to keep tweaking that as you add and remove superclasses. In Lisp, you can set it up so that the multiple "name" calls happen automatically. The :before, :after, and :around keywords let you say what order you want the calls to happen in. You'd use :before for setup actions, :after for cleanup actions, and just plain defmethod for the stuff that is supposed to happen in between. -- http://mail.python.org/mailman/listinfo/python-list
