@echo off
REM set PythonDIR to your python 2 or 3 install path; e.g. the folder with python.exe in it.
set PythonDIR=C:\Python27
set PATH=%PythonDIR%;%PythonDIR%\Scripts;%PATH%
set PYTHONPATH=%PythonDIR%\Lib;%PythonDIR%\Lib\site-packages;%PythonDIR%\DLLs;
set PATHEXT=%PATHEXT%;.PY;.PYW
assoc .py=Python.File
assoc .pyw=PythonW.File
ftype Python.File=%PythonDIR%\python.exe "%1" %*
ftype PythonW.File=%PythonDIR%\pythonw.exe "%1" %*