>  PyLogo wouldn't be particularly useful teaching Python, since it isn't
>  Python.  But it makes it possible to share infrastructure and
>  environment between the two languages.  So (barring some small details)
>  you could run VPython from Logo, and the students would be building
>  familiarity with that model.  And I think there's no reason VPython in
>  Logo would look much different than in Python -- the core concepts there
>  aren't bound to the language, they are bound to the domain of 3D modeling.

I think implementing swimming turtles within VPython, using pure
Python modules and syntax, is a viable approach.  I might just use
IPython as a command line shell, and have kids instantiate and
instruct their turtles from there.  VPython would be the view. 
Modules (perhaps organized in an __init__ package) would supply the
model (command line is controller).

Kirby
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