New submission from Yury Selivanov <yselivanov@gmail.com>: I don't see it documented that dicts preserve insertion order. 3.7 what's new points to [1], but that section doesn't have a "version changed" tag. IMO, [1] should have two version changed tags: one for 3.6, and one for 3.7. Also, it would be great if we could document how the order is preserved when a key is deleted from the dict etc. [1] https://docs.python.org/3.7/library/stdtypes.html#mapping-types-dict ---------- assignee: docs@python components: Documentation messages: 317346 nosy: docs@python, inada.naoki, ned.deily, vstinner, yselivanov priority: normal severity: normal status: open title: Document that dicts preserve insertion order type: enhancement versions: Python 3.7, Python 3.8 _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue33609> _______________________________________