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 -- Steve Holden +1 571 484 6266 +1 800 494 3119 Holden Web LLC http://www.holdenweb.com/ -- http://mail.python.org/mailman/listinfo/python-list
