Preferred way to input python commands from the main loop

[morden]

morden wrote:

> I'm creating a simple tkinter program to get driven by an existing motif
> application.
> The way I intend it to work is to have the existing app feed python
> commands to the tkinter program sitting in the mainloop, have them
> executed and feed the results in form
>
> fromgui.buttonpressed("tagfoo", 1)
>
> back to the motif app.
>
> Sooo, should I used after() to setup reading from the motif app or
> should I create a thread waiting for the input from the motif app?
>
Nevermind. Section 9.6 in the python cookbook seems to describe one way 
to do this.