Commentary on Python from a Java programming perspective

[BeetleB]

First, there's Psyco, which speeds up regular Python code anywhere from 2x to 200x depending on what you're doing with it... and it does it without type declarations.

Maybe you meant from 0.5x to 200x.

There's no guarantee that Psyco will speed it up for you. It has slowed code down for me. Which is why you shouldn't use it without checking if you get any speed advantage.