[Python-Dev] Guarantee ordered dict literals in v3.7? (original) (raw)

Antoine Pitrou solipsis at pitrou.net
Mon Nov 6 08:30:45 EST 2017

On Tue, 7 Nov 2017 00:14:35 +1100 Steven D'Aprano <steve at pearwood.info> wrote:

On Mon, Nov 06, 2017 at 12:27:54PM +0100, Antoine Pitrou wrote:

> The ordered-ness of dicts could instead become one of those stable > CPython implementation details, such as the fact that resources are > cleaned up timely by reference counting, that people nevertheless > should not rely on if they're writing portable code. Given that (according to others) none of IronPython, Jython, Batavia, Nuitka, or even MicroPython, should have trouble implementing an insertion-order preserving dict, and that PyPy already has, why should we say it is a CPython implementation detail?

That's not what I'm taking away from Paul Sokolovsky's message I was responding to. If you think otherwise then please expand and/or contact Paul so that things are made clearer one way or the other.

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