On Wed, 8 Nov 2017 13:07:12 +1000 Nick Coghlan <ncogh...@gmail.com> wrote: > On 8 November 2017 at 07:19, Evpok Padding <evpok.padd...@gmail.com> wrote: > > On 7 November 2017 at 21:47, Chris Barker <chris.bar...@noaa.gov> wrote: > >> if dict order is preserved in cPython , people WILL count on it! > > > > I won't, and if people do and their code break, they'll have only themselves > > to blame. > > Also, what proof do you have of that besides anecdotal evidence ? > > ~27 calendar years of anecdotal evidence across a multitude of CPython > API behaviours (as well as API usage in other projects). > > Other implementation developers don't say "CPython's runtime behaviour > is the real Python specification" for the fun of it - they say it > because "my code works on CPython, but it does the wrong thing on your > interpreter, so I'm going to stick with CPython" is a real barrier to > end user adoption, no matter what the language specification says.
Yet, PyPy has no reference counting, and it doesn't seem to be a cause of concern. Broken code is fixed along the way, when people notice. Regards Antoine. _______________________________________________ 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
