Python 2.x.x AND Python 3.x.x on Windows

If you need to run both Python 2 AND Python 3 scripts on Windows, this is good to know -
https://stackoverflow.com/questions/15912063/how-do-i-run-python-2-and-3-in-windows-7
- also, check out section 3.4 here -
https://docs.python.org/3.3/using/windows.html