Working a lot right now on the 
[Tix] Integrated Development Environment:
http://starship.python.net/crew/mike/
which is built on the Tixapps framework 
http://tix.sourceforge.net/Tixapps/ : a library and suite
of programs, including Tixinspect and TixDebug, which work as either
Tcl or [Tkinter] applications.