Interface support?

[Steve]

Michele Simionato wrote:
> Twisted and Zope already use interfaces. You can download
> the interface package and use it in you project.
> 

Thanks for the response. I'm completely new to Python, where exactly 
would I go to find these interface packages(Python site, or Twisted/Zope 
sites)? Is it the same interface package for both, or are they 
different? If different, is one better than the other?

Thanks,
Steve