DOS-Shell hangs up, python/Tkinter

[Howard Lightstone]

Markus von Ehr <markus.vonehr at ipm.fhg.de> wrote in 
news:3D3FBF1A.C1531FB3 at ipm.fhg.de:

> Hi,
> 
> when I start my python/Tkinter apps out of a MS-DOS shell
> and kill the app, very often the DOS-prompt doesn't come back,
> the Shell hangs-up.

This is a "known" bug in Tk.

http://sourceforge.net/tracker/?func=detail&atid=105470&aid=216289&
group_id=5470

The workaround:
  use pythonw for now........