On Fri, 2006-03-31 at 07:44 +1000, Nick Coghlan wrote: > Adam DePrince wrote: > > There seemed to be a concensus in the community on the size of the view > > proposal, and I'm reimplementing the PEP to reflect that. But what I > > can't resolve is the other anciliary issue: "To list or iter." I'm not > > yet ready to resolve that issue. The views don't resolve it either, and > > by their nature are biased towards the iter approach. They provide > > __iter__ because its light weight to do, but there is no way a light > > weight view can provide you with ordering information from an unordered > > datastore. Now, as a means of resolving this conflict, I'm open to the > > notion of a view implementing both __iter__ and an explicit .list method > > to avoid any extra overhead in generating a list from an iter instead of > > directly from the dict as we do now. > > Umm, the whole point of the views discussion is the realisation that "list or > iterator" is a false dichotomy. The correct answer is "new iterable that > looks
The false dichotomy is not of my construction; some of the objections that I've received have been of the form: """When I say >>>print dict.items() with views instead of iters it still won't look like a list! """ Until that debate is resolved it will still taint discussion of any non-lists that dict.items/values might return. - Adam _______________________________________________ Python-3000 mailing list Python-3000@python.org http://mail.python.org/mailman/listinfo/python-3000 Unsubscribe: http://mail.python.org/mailman/options/python-3000/archive%40mail-archive.com
