Also, dicts can become unordered at any time in the future. Right now the OrderedDict implementation is a thin layer over dict, but there are no guarantees it’ll always be that.
the insertion-order preservation nature of dict objects has been declared to be an official part of the Python language spec.
I would argue that OrderedDict have more chances to be depreciated than dict becoming unordered again, since there is now little value to keep OrderedDict around now (and the methods currently specific to UnorderedDict could be added to dict).
But seriously: It’s no longer an implementation detail that dictionaries are ordered in Python. It’s a specification of how Python works.
Makes you think what other parts of Python have become obsolete.