First thing you need to do to get yourself comfortable with the python environment and its format.
In order to do that you need to have python up and running on your system or run it online using the following.
I would suggest to get used to python first online and then installing it onto your system which is recommended as it will be lot more easier to input file and work with them.
python executable file for the windows and mac OSX installer can be downloaded from this link
python 32-bit version is recommended as most the libraries are developed for 32-bit version.
In the next post we will be discussing the basic methods in python.