Pypy is great but I didn't find it very useful with Django. Quick, transactional HTTP exchanges (GET, POST, etc.) aren't really its thing-- there's no time for

Pypy is great but I didn't find it very useful with Django. Quick, transactional HTTP exchanges (GET, POST, etc.) aren't really its thing-- there's no time for the compiler to get warmed up; the request is complete before pypy has gotten out of bed. But if you have to do really complex view rendering (graphs or something) where it would take cpython ~10s or more to process, then pypy will leave cpython in the dust.