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Tue Nov 7 09:06:42 EST 2017 · https://mail.python.org/pipermail/python-dev/2017-November/150309.html

On Wed, Nov 08, 2017 at 12:01:04AM +1000, Nick Coghlan wrote:
> > The recent proposal was primarily about guaranteeing the insertion order of
> > dict literals.
> >
> > If further guarantees are proposed, perhaps it would be a good idea to
> > open a new thread and state what exactly is being proposed.
> 
> "Insertion ordered until the first key removal" is the only guarantee
> that's being proposed.
> 
> OrderedDict just comes into the discussion because reaching for its
> stronger guarantees is currently the only way to obtain that guarantee
> in a formally implementation-independent and future-proof way.

Ok good, I was primarily worried about collections.UnorderedDict coming up
and users thinking that OrderedDict could be replaced entirely by dict().

Stefan Krah

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[Python-Dev] The current dict is not an "OrderedDict"