As mentioned in the reddit thread[1], the occasional mentions of 'Python' refer to the SBCL compiler[2] rather than the little-p python language. This confused me for a little while as I tried to figure out how they were running on the python VM.

[1] http://www.reddit.com/r/programming/comments/yy6e4/tabasco_s...

[2] http://insidelisp.blogspot.co.uk/2010/04/book-chapter-11-wha...