#95385 caused a regression in JSON serialization of OrderedDict when use the C implementation.

>>>import collections, json>>> od= collections.OrderedDict(a=1,b=2)>>> od.move_to_end('a')>>> odOrderedDict([('b', 2), ('a', 1)])>>> json.dumps(od)'{"a": 1, "b": 2}'

With the pure Python implementation, as well as in older Pythons, you get'{"b": 2, "a": 1}'.

Linked PRs

• gh-100272: Fix JSON serialization of OrderedDict #100273