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

I had exactly the same problem with one of my scripts utilizing Tkinter. Adding call to mainloop() fixed the issue. See this tutorial for an example: [http://sebsauvage.net/python/gui/#import1

In my case, in the init function I have

def __init__(self,Width=400, Height=400):
        # Create GUI window ------------------------------            
        win = Tk()
        ...

in the end of init I added:

        win.mainloop()

Now it works by just running the file. Hope this helps