[Tutor] Binary Tree Printing Woes

[Chimp]

* Alan Gauld <alan.gauld@blueyonder.co.uk> [030606 23:03]:
> > .....But how come the print_tree() function - which ALSO returns 
> > None works just dandy?!
> 
> Good question and I asked myself the same thing.
> 
> I didn't see an obvious answer but assumed it must 
> be some strange combination of calling pattern. I suspect 
> a bigger tree might give a different answer, a 3 node one 
> isn't enough to test all scenarios. A cop out sorry! :-)
I tried one with a bajillion nodes, but alas, same effect. *sigh*

I'll be busy all weekend, but I'll look into it again, pull in some
markers on the IRC/ICQ grapewine, cut some shady deals with people in
the know and get back to the list with a solution, don't you worry.

Ain't gonna let this bugger ruin my Coding Experience(tm).

> > But how do I rewrite the function so make the "print" ignore it? 
> Just call the function, since it does its own printing you 
> don't need to! Alternatively, and better practice, make the 
> function return a list of values and you then print those 
> outside the function..
Sorry for screwing up that sentence. *blush* I like the idea of building
up a list and return it - maybe not for a lousy print statement(!), but
in general. I'm not sure I can handle it recursively, but I'll get my
grubby paws dirty over the weekend and we'll see what comes crawling out
of the lab, ha ha!

Later,

-- Chimp
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