[Python-Dev] Python 3.6 dict becomes compact and gets a private version; and keywords become ordered

[Victor Stinner]

2016-09-10 23:24 GMT-04:00 Nick Coghlan <ncoghlan at 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 :-)

Victor