On Fri, Jun 25, 2010 at 12:51 PM, Stephen Hansen <me+list/pyt...@ixokai.io> wrote: >> Using assignments to create an attribute hides metaprogramming behide, >> while using delattr() exposes it. > > I don't understand what you're saying here either.
I think he's saying that when an attribute exists in the class dictionary, assigning that attribute to an instance obscures it, and deleting that attribute from an instance exposes it. The point being, I guess, that when an assignment to an instance attribute is performed in the code, it's not immediately obvious whether that assignment is updating something already defined in the class or creating something entirely new. Whereas deleting an instance attribute always exposes whatever is already defined at the class level. I think the distinction is false, though, since deleting an instance attribute says nothing about whether that attribute is defined at the class level to begin with. -- http://mail.python.org/mailman/listinfo/python-list