<[EMAIL PROTECTED]> wrote: > Simon Forman wrote: > > But that's a function, not a class. When you assign add to an > > attribute of Item it "magically" becomes a method of Item: > > Yes, I am looking to understand this magic. > Sounds like I need to dig into these descriptor thingies (again). > > (sound of brain exploding)..
It's really very simple: Python-coded functions (whether their def is in a classbody or not) are descriptors (objects with a method named __get__ which binds the first argument); classes (and C-coded functions, etc) are not descriptors (they have no method named __get__ etc etc). If you insist, you can write a custom metaclass with a __get__ so that classes instantiating it ARE descriptors, for example. Alex -- http://mail.python.org/mailman/listinfo/python-list
