Kirby asks - 

> When teaching Python, do we begin with a treatment of
> low level representations of data?  Or is that saved for
> a later time?

Good question. 

Truth of the matter is that I don't consider myself a beginner
anymore,  but I am lost even trying to follow your illustration.

But I do have a top-level awareness of data structure issues, 
and that has been essential to understanding the environment. 
IMO top-side awareness is crucial.  The details can follow.  

So your illustration to me would be more of a "for example watch
what happens when"  rather  something that needed to be 
grasped in its full detail.

ART

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