[Python-Dev] PEP 468 (Ordered kwargs)

[Guido van Rossum]

Wow, very cool. When I implemented the very first Python dict (cribbing
from an algorithm in Knuth) I had no idea that 25 years later there would
still be ways to improve upon it! I've got a feeling Knuth probably didn't
expect this either...

On Sat, Jan 24, 2015 at 2:51 AM, Maciej Fijalkowski <fijall at gmail.com>
wrote:

> On Sat, Jan 24, 2015 at 12:50 PM, Maciej Fijalkowski <fijall at gmail.com>
> wrote:
> > Hi
> >
> > I would like to point out that we implemented rhettingers idea in PyPy
> > that makes all the dicts ordered by default and we don't have any
> > adverse performance effects (in fact, there is quite significant
> > memory saving coming from it). The measurments on CPython could be
> > different, but in principle OrderedDict can be implemented as
> > efficiently as normal dict.
> >
> > Writeup:
> http://morepypy.blogspot.com/2015/01/faster-more-memory-efficient-and-more.html
> >
> > Previous discussion:
> > https://mail.python.org/pipermail/python-dev/2012-December/123028.html
> >
> > Cheers,
> > fijal
>
> also as a sidenote: PEP should maybe mention that PyPy is already
> supporting it, a bit by chance
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-- 
--Guido van Rossum (python.org/~guido)
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