Acceptance test framework

[Raaijmakers, Vincent (GE Infrastructure)]

While 'Googling' and reading old news posts, I can remember that there were already previous questions posted. Of course, now I need them but can't find it anymore.

So, can someone give me a good reference to acceptance test frameworks completely written in python?
Would fit perfectly in our XP environment and Python test framework we already have.
 
I prefer to have a framework that is XML driven, but it is not required.....
Ton of stuff available in Java, but in Python not that much. At least, that tells my 1 hour search experience now.

If possible, like to hear some experience as well, pro's and con's.

Thanks in advance, and I will continue with the search as well.

Vincent