Script works in IDLE, but .py-file doesn't work

Question

I have a tkinter script, which runs just fine in IDLE. However, when I double click the .py-file from Windows Explorer, the console window flashes half a second and then it

Answer 1

Have you updated your PATH environment variable so that your Python executable is found? You can find more information on how to do here - Using Python on Windows

But you basically need to make sure that the folder containing python.exe (e.g. C:\Python32) is displayed when you type the following command from a prompt:

echo %PATH%