Python is used a lot of programming apps as it's easier to program and is a bit more forgiving syntax wise than other programming languages are.

There are some useful code snippets on github depending on what specifically you're trying to program for? If you want to look into basic stuff, there's a Python module called Bitcoin-tools that might be helpful if you don't want to code from scratch.

As an extra note, Python is quite slow as a language to run (not entirely sure why) so you can't make really complex stuff using it, for that you'd turn to C/C#/C++.