[XML-SIG] 'Strange' behaviour of TreeWalker

[Uche Ogbuji]

> Hi,
> 
> I'm quite new to Python (and pyxml / 4Suite ) and was quite confused by a
> 'strange' difference between NodeIterator and TreeWalker.
> 
> While instances of NodeIterator are "printable" and give reasonable
> error messages, eg. accessing undefined attributes, instances of TreeWalker
> give hard times to novice users as __getattr__() effectively prevents any such 
> access without reasonable message.
> 
> Is that the intended behaviour or just an unwanted side-effect?
> At least, a note in the docs might be valuable to others.

It comes down to unfortunate implementation needs.  I think TreeWalker can be 
refactored to need less magic once 2.0 is the requirement for PyXML and thus 
there is no need to worry about reference cycles.


-- 
Uche Ogbuji                           Fourthought, Inc.
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