Raymond Hettinger wrote: > * Maintaining a live (self-updating) view is a bit tricky from an > implementation > point-of-view.
I don't understand what the alternative is. If mutating the underlying object doesn't affect the view, then you don't really have a view, just a copy of the data -- no different from the existing dict keys() etc. If you're saying that you shouldn't be able to mutate the underlying object *through* the view, that's okay -- I don't mind if the views are read-only in some or all cases. > Let's make dicts as > simple as possible and then introduce a new collections module entry with the > views bells and whistles. If the view methods are only available on a special dict subclass and not on ordinary dicts, their usefulness will be severely crippled, so you wouldn't learn much from the experiment. -- Greg _______________________________________________ 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
