in this section I will write about installing python on windows and setting it, so that can run on CMD.
ok first you must download python package on http://www.python.org,
choose python you need, in this tutorial I'm using python 2.7. after download install it.
I'm assuming you have install it on C:/python27/
then to make your python can run in CMD you must setting the PATH environment configuration in your windows.
open PATH environment
Ok after that setting the PATH
double click on path variable then add this to value variable
ok then klik apply -> ok;C:\Python27\
then open your CMD and type python you will see python shell on your CMD, ok Good Luck ! :)