Isn't ordered dict also useful for **kwargs? If it turns out that there's a dict implementation that's faster by not preserving order, collections.UnorderedDict could be added. There could also be specialized implementations that pre-size the dict (cf: C++ unordered_map::reserve), etc., etc. But these are all future things, which might not be necessary.
On 5 November 2017 at 12:44, Sven R. Kunze <srku...@mail.de> wrote: > +1 from me too. > > On 04.11.2017 21:55, Jim Baker wrote: > > +1, as Guido correctly recalls, this language guarantee will work well > with Jython when we get to the point of implementing 3.7+. > > On Sat, Nov 4, 2017 at 12:35 PM, Guido van Rossum <gu...@python.org> > wrote: > >> This sounds reasonable -- I think when we introduced this in 3.6 we were >> worried that other implementations (e.g. Jython) would have a problem with >> this, but AFAIK they've reported back that they can do this just fine. So >> let's just document this as a language guarantee. >> >> On Sat, Nov 4, 2017 at 10:30 AM, Stefan Krah <ste...@bytereef.org> wrote: >> >>> >>> Hello, >>> >>> would it be possible to guarantee that dict literals are ordered in v3.7? >>> >>> >>> The issue is well-known and the workarounds are tedious, example: >>> >>> https://mail.python.org/pipermail/python-ideas/2015-Decembe >>> r/037423.html >>> >>> >>> If the feature is guaranteed now, people can rely on it around v3.9. >>> >>> >>> >>> Stefan Krah >>> >>> >>> >>> _______________________________________________ >>> Python-Dev mailing list >>> Python-Dev@python.org >>> https://mail.python.org/mailman/listinfo/python-dev >>> Unsubscribe: https://mail.python.org/mailma >>> n/options/python-dev/guido%40python.org >>> >> >> >> >> -- >> --Guido van Rossum (python.org/~guido <http://python.org/%7Eguido>) >> >> _______________________________________________ >> 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/jbaker% >> 40zyasoft.com >> >> > > > _______________________________________________ > Python-Dev mailing > listPython-Dev@python.orghttps://mail.python.org/mailman/listinfo/python-dev > > Unsubscribe: > https://mail.python.org/mailman/options/python-dev/srkunze%40mail.de > > > > _______________________________________________ > 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/ > pludemann%40google.com > >
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