need design suggestions: local namespace problem

[Jason R. Mastaler]

John Roth <johnroth at ameritech.net> writes:

> Wrap the whole thing in a proxy class. Then  you just import the
> proper module, and away you go. If you want to add another
> mail program later, you just have to add an appropriate proxy
> with the same interface.

Can you give me an example of what you mean by a "proxy class"?
I'm not familiar with that terminology.