[Edu-sig] Does any such tutorial exist?

[george hanson]

Hello, I wanted to write a tutorial using only a few basic constructs of python (function definition and application, conditional expressions, structure definition, local definitions, and assignments) to teach basic design principles.
Something like the scheme online book 'How to Design Programs'
http://www.htdp.org
This is just to gently introduce students to programming using python like syntax, before going into python specific
features in depth.
Does any similar project already exist?

Cheers
George