Looks like an interesting angle to data and computer science. The authors build their own teaching language to accompany the book, called pyret [1] A cool fea

Looks like an interesting angle to data and computer science. The authors build their own teaching language to accompany the book, called pyret [1] A cool feature of which is you can have tests as part of your function definition. [1] https://www.pyret.org/ https://www.pyret.org/