Question

I am working on problem set 0, but i have no idea how to change to a user and actually interact with my program

Answer 1

You can interact with a user by the input function:
input() for Python 3.3
raw_input() for Python 2.7

Answer 2

Thanks you for the help. I had already figured out raw_input function and variables, i just didn't know how run a module. I figured out that I was only interacting with the python shell

Answer 3

You can use IDLE (Python GUI) to have an editor window. You type your code in there and then use F5 to process it through the interpreter.
Personally I prefer to use Pyscripter, http://code.google.com/p/pyscripter/