[batguano]

The second edition uses Python rather the the first edition which uses the Lisp dialect Scheme.

[Jtsummers]

The second edition of SICP uses Scheme (there were two editions with Scheme). The new edition uses Javascript.

[rgrmrts]

The second edition uses JavaScript I thought? Unless there’s also a python edition

[ChristianGeek]

There’s an unofficial Python version floating around, but you’re better off with one of the Scheme versions.

[rgrmrts]

I like the Scheme version :) haven’t worked through the newer one. I do understand their impetus for it though (even if I personally don’t agree with it).