@f(x), thank you for the links, but the very first line about the book is "Dive Into Python is a Python book for experienced programmers.". The other links are well beyond my current skills. As a introduction learning exercise of a GUI development, is Tcl/tk really that flawed? Yes, of course I want to move on to using Qt as that's my end goal. I already have several utilities I want to create to run on my future N900.