Is there a __start__ method?

[Christopher Myers]

I figured I'd try here first.

I have a gui app that I wrote mainly using Pmw with a few plain tkinter
widgets thrown in.  In my __init__method, I have another method that I
want to execute at startup that I call at the very end.  This method
sometimes takes quite a while to execute (it's accessing 3 separate
URL's), so the main window doesn't post until this is complete.  

What I want is something java-like, where there is an __init__ method
that builds the app, then a __start__ method (is that what it is in
Java?) is called which does other stuff on launch after the GUI is
built.

Anything like this available?

Thanks,
-- 
Christopher Myers, Graduate Software Developer 
Ingenta, Inc.
12 Bassett St.
Providence, RI  02903
ph:  401.331.2014 x 102
em:  chris.myers at ingenta.com
aim: chrismyers001