Is there a good Python GUI shell?

Question

I saw this the other day (scroll all the way down to see some of the clever stuff):

http://www.mono-project.com/docs/tools+libraries/tools/repl/

Answer 1

(Sorry for thread necromancy, but this page still comes up highly in a Google search and I assume there must be some interest in the subject.)

One GUI shell for Python which I believe is quite new is DreamPie. It doesn't quite go as far as the screenshots in the question, but it might be the closest available. They do at least highlight interactive graph plotting in their list of useful features.