I've been going through http://wiki.python.org/moin/WebFrameworks, but since my time is limited I can't test all the framework listed there, so I thought I might narrow the scope by asking here. I have quite some experience in Django, but am about to start developing a Web app that would have two features: a) it would be based on a noSQL database (haven't decided which one yet) and b) the structure will develop along with the app, so I need to be as flexible as possible. Any pointers would be much obliged.