OP here: has anyone used this? Any projects you especially enjoyed? I'm about half-way through Lutz's Learning Python, and starting to get antsy. I liked the simple video game.

echo?

I am not a python guy but I have been looking over the book and the chapters on forth and lisp are both awesome!

Funny to see an implementation of Lisp in a Python since there exists implementation of Python in Lisp : https://github.com/franzinc/cl-python !

And also an implementation of Lisp called Python: http://www.cons.org/cmucl/FAQ.html (q4).