In case somebody else is trying to do the same thing, this is what I ended up with to get the concept, that I can now integrate in other scripts:
http://projects.zioup.org/scratchpad/python/tkrun.py -- Yves. http://www.SollerS.ca/ http://ipv6.SollerS.ca http://blog.zioup.org/ -- http://mail.python.org/mailman/listinfo/python-list
