let me make it quick
how do i learn to do the codes and such?
Well, I believe that the manual (which should be linked-to at the top of this page), and specifically the introductory tutorial, is probably a good place to start.
Once you’ve done that, I suggest coming up with a small (and I do mean very small) project and researching the means to doing that, using the manual and reference (the latter of which should also be linked-to at the top of the page) as well as searching and asking on these forums.
Build this up bit-by-bit, getting each feature working before moving on to the next. The aim in this project is not to create a great game, but rather to “learn the ropes”.
For example, you might decide to create a game in which the player gains points by shooting a monster, and loses points by being shot by said monster.
This you might handle by first learning to load a character of your own, then control it using the keys, then shoot some basic projectiles, then collide with objects, then introduce a non-moving, non-shooting monster, etc…
Good luck!
well thx , 
but when i save as .py,nothing happens.
I figured it out.Thanks!