The key to scaling a web site is to make sure you can load-balance to as many front ends as needed and then use a common database backend that is fast enough or possibly a common file system that is fast enough.
I can't speak to Django specifically but you can certainly get essentially unlimited scalability on the front-end side of the equation using a Python based web app. The google app engine will set such a configuration up for you automatically, but they are still working some bugs out with regard to performance, I think, based on my experience here http://whiffdoc.appspot.com/ and here http://listtree.appspot.com/ I hope that helps. -- Aaron Watters === an apple every 8 hours will keep 3 doctors away. -kliban -- http://mail.python.org/mailman/listinfo/python-list