That reminds me of TclTutor: http://www.msen.com/~clif/TclTutorTour.html
TclTutor is a great Tk application that teaches Tcl/Tk by having all the lessons and examples set up waiting in the app. The examples can be edited/fixed and re-executed. I still bring up TclTutor when I delve into Tcl programming (after several years), it is invaluable. I guess a Python equivalent would be Idle, pre-packaged with lessons and examples from the Python tutorial available from the Idle menus. - Pad. -- http://mail.python.org/mailman/listinfo/python-list
