On Sun, Sep 11, 2016 at 6:42 PM, Victor Stinner <victor.stin...@gmail.com> wrote: > 2016-09-10 23:24 GMT-04:00 Nick Coghlan <ncogh...@gmail.com>: >> To conform with the updated language spec, implementations just need >> to use collections.OrderedDict in 3 places: >> >> (...) >> - storage type for passing kwargs to functions > > I'm not sure about the "just need" for this one, especially if you > care of performances ;-) > > I mean, it's not easy to write an *efficient* hash table preserving > the insertion order. Otherwise, CPython would have one since Python > 1.5 :-)
Can the requirement for kwargs be weakened to "preserves insertion order as long as it is not mutated"? That might make it easier on implementations. ChrisA _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
