[Python-Dev] Guarantee ordered dict literals in v3.7?

Tim Peters tim.peters at gmail.com
Fri Dec 15 13:47:54 EST 2017


[Eric Snow <ericsnowcurrently at gmail.com>]
> Does that include preserving order after deletion?

Given that we're blessing current behavior:

- At any moment, iteration order is from oldest to newest.  So, "yes"
to your question.

- While iteration starts with the oldest, .popitem() returns the
youngest.  This is analogous to how lists work, viewing a dict
similarly ordered "left to right" (iteration starts at the left,
.pop() at the right, for lists and dicts).


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