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Feb. 18, 2020
11:25 a.m.
In particular, you may want to update the implementations of defaultdict and ordereddict. (are there others?)
I have a checklist for PEP 584 follow-up PRs I'm planning to make after (and if) it is accepted. typeshed stubs, docs, and `defaultdict` were on it. I'll add `OrderedDict` as well (for some reason I didn't think it was a `dict` subclass). `Counter` already defines this operator for other purposes, so no need to do anything there. I'm not aware of other public subclasses, but I may just try importing the whole stdlib and recursing through `dict.__subclasses__()` just to be sure.