[Tutor] Turtle problem: how to exit the .exe?

[Dick Moores]

Win XP, Python 2.51

The script is at <http://py77.python.pastebin.com/f414c8ce4>  It 
calls the Windows console to show the printed data.

I've successfully used PyInstaller to make an .exe for this.  For 
informed users, exiting the program before it finishes is easily and 
cleanly done by a Ctrl+Q on the console window.

But I'd like to make a version of the script that doesn't report any 
data. How can I write it so that the .exe can be easily exited by the 
user? If Tkinter instead of Turtle were involved, I could have an 
Exit button connected to command=root.quit .

Thanks,

Dick Moores