Which Python web framework is most like Ruby on Rails?

[bonono at gmail.com]

Mike Meyer wrote:
> It's conceivable that a change might make Python more popular and also
> detract from the language in some way. For a ridiculous example,
> making Python interpret Perl 6 would certainly make it more popular,
> but I would argue that would seiously detract from the language.
> 
why would one want python to interpret Perl 6 ?