Since when builtin dict preserve key order?

[Chris Angelico]

On Sun, Mar 25, 2018 at 8:52 AM, Arkadiusz Bulski <arek.bulski at gmail.com> wrote:
> What exactly do you mean its present but not guaranteed? Do you mean its a
> property of CPython 3.6 implementation but not Python as a standard?

Correct. The implementation was done in CPython (basically lifting it
from PyPy, AIUI), and then a lengthy discussion eventually settled on
making it a language requirement.

ChrisA