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user_id=33229

See my comments in bug 231207:
    IMHO all Tkinter programs need a root.destroy() 
    after root.mainloop()

Your test case DOES NOT die whether or not you deiconify it,
if you run it under PythonWin.

Your test case DOES die whether or not you deiconify it,
whether or not you run it under PythonWin, if you add a
    root.destroy()
after the
    root.mainloop()

If you run it as a console script without the root.destroy()
then Python reaches the end of the script and exits, without 
having shut Tk down first. PythonWin of course is not exiting
at the end, and in the status line says the script 
returns with code 0.

I think this is a usage/documentation error and is 
IMHO unrelated to the very real bug 216289.