On Wed, Nov 14, 2012 at 12:12 PM, Xavier Morel <catch-...@masklinn.net> wrote: > On 2012-11-14, at 18:10 , Mark Adam wrote: >> >> Try the canonical {'x':1}. Only dict allows the special >> initialization above. Other collections require an iterable. > > Other collections don't have a choice, because it would often be > ambiguous. Dicts do not have that issue.
mkay.... >> I'm guessing >> **kwargs initialization was only used because it is so simple to >> implement, but that's not necessarily a heuristic for good language design. > > In this case it very much is, it permits easily merging two dicts in a > single expression or cloning-with-replacement. It also mirrors the > signature of dict.update which I think is a Good Thing. Merging of two dicts is done with dict.update. How do you do it on initialization? This doesn't make sense. mark _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com