Running Python file by double-click

right click on the file->open with->choose default program->more options->select python.exe file and click on.

What version of Python do you have installed?

You should write your own batch file to execute your python binary and your script.

For example, with a default Python 2.7 installation on Windows, this could be the entire contents of your script.

myscript.bat:

ECHO ON
REM A batch script to execute a Python script
SET PATH=%PATH%;C:\Python27
python yourscript.py
PAUSE

Save this file as "myscript.bat" (make sure it's not "myscript.bat.txt"), then double click it.

Right click the file, select open with. If you want to simply run the script, find python.exe and select it. If you want to debug with IDLE, find that executable and select it.