I\'ve been trying to add the Python path to the command line on Windows 7, yet no matter the method I try, nothing seems to work. I\'ve used the set command, I\
If Python was installed with another program, such as ArcGIS 10.1 in my case, then you also must include any extra folders that path to the python.exe in your Environment Variables.
So my Environment Variables looks like this:
System variables > Path > add ;C:\Python27\ArcGIS10.1