Implementing append within a descriptor

[Joseph L. Casale]

> You're going to have to subclass list if you want to intercept its
> methods. As I see it, there are two ways you could do that: when it's
> set, or when it's retrieved. I'd be inclined to do it in __set__, but
> either could work. In theory, you could make it practically invisible
> - just check to see if you're trying to __set__ a list, and if you
> are, set a magical list instead.
 
Hey Chris,
That actually is sufficient, assignment can be intercepted and retyped so
an append will accomplish what I need.

Thanks!
jlc