Ok so there is method to this madness.

The intro to systematic design part one uses a programming language called Racket, or a variation of Racket called Beginning Student Language (BSL).

Now it is a little crazy to learn two different languages at the same time but I have to complete the Part One of the course to get to the Part 2 of the course that has a Python stream.

So here is some additional information about Racket for those that are interested.

The main site for the language is at http://racket-lang.org/

Where you can download DrRacket the shell and visualizer, as well as a nice introduction.

I can already see some language differences when writing simple expressions, for example

Python:    3 + 4

Racket (BSL):      (+ 3 4 )

So it will be interesting to see the differences as time goes on and see if I can keep them straight in my head.

Also noticed this blog post about Racket:

Related articles

• The Realm of Racket is an enjoyable read (debasishg.blogspot.com)