There are some applications that cannot be played without Python. Python allows you to play applications and games in .py format.
First download Python s60 then it's Python Scriptshell according to your Operating System(os). But if you're using os8/8.1 phone, there is a Complete Python set for you.
Python For os7 (ex. 6600, 3230, 6260, 6620, 6670, 7610)