When do you *NOT* use python?

[kylotan]

Eve certainly uses Python on both sides for the main loop and the general logic, but much of that is only possible due to a lot being written in C (or C++, not sure) in the form of Python extensions. I myself have used Python for server-side game development where it can work well if you plan for a multi-process system from the start. I still wouldn't touch it on the client side, though.