Performance differences between Python and C

Question

Working on different projects I have the choice of selecting different programming languages, as long as the task is done.

I was wondering what the real difference is

Answer 1

Use python until you have a performance problem. If you ever have one figure out what the problem is (often it isn't what you would have guessed up front). Then solve that specific performance problem which will likely be an algorithm or data structure change. In the rare case that your problem really needs C then you can write just that portion in C and use it from your python code.