Finding the instance reference of an object

[Steve Holden]

Steven D'Aprano wrote:
> On Fri, 07 Nov 2008 10:50:55 -0500, Steve Holden wrote:
> 
>> I am probably egregiously misunderstanding. The practical difficulty
>> with the "moving huge blocks of data" approach would appear to emerge
>> when a function that gets passed an instance of some container then
>> calls another function that references the same container as a global,
>> for example.
> 
> I have no doubt whatsoever that such an implementation would be fragile, 
> complicated, convoluted and slow. In other words, it would be terrible. 
> But that's merely a Quality of Implementation issue. It would still be 
> Python.
> 
> 
OK, more specifically: I don't see how changes to the copy of the
(structure referenced by) the argument would be reflected in the global
structure. In other words, it seems to involve a change of semantics to
me, so I think I am misunderstanding you.

regards
 Steve
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