You can use notepad as your Texteditor. Other than that, you can use Crimson Editor (which I currently use, but I'm not program python, instead I'm using that for PHP

but it's just the same thing, it colors text!!! Which I loveee!!!

)
You can download Python interpreter here:
http://www.python.org/ftp/python/2.4.1/python-2.4.1.msi
Once you installed the interpreter, test it by going to the command line prompt, and then type:
It has to be in the capital V, if not.. it will load python in the verbose mode. To quit this you need to press Ctrl + D or type 'quit' (without ' of course..)
save your program with .py
NOT .txt of course...
have fun... more tutorial can be found from Google
