Berkeley seems to want to slice the baby in half. cs61a teaches in Python but then retains the implementation of a Scheme interpreter. They don't use SICP anymore. They use John DeNero's online text, Composing Programs.
https://www.composingprograms.com
BTW, my complaint about Scheme in 61a was that after the class, the department never used it again. They didn't even have the decency to use Guile or some standard Scheme. Instructional Computing had some hacked up something Scheme.