[Pythonmac-SIG] Progressbar in tkinter app

[Dan Ross]

I'm working on a tkinter gui for an app I made.

I can't seem to get a progressbar to start and stop while a function 
runs.

(pseduo-code)

def my_function():
     progress_bar.start()
     ##### do a bunch of stuff #####
     progress_bar.stop()

That should work shouldn't it? Or do I need a separate thread?

Thanks all,

Dan