Add `sort_dicts` parameter to `reprlib.Repr`

Feature or enhancement

Proposal:

reprlib.Repr currently sorts dictionaries by key when producing representations. However, sometimes the insertion order is meaningful. It would be useful to have a sort_dicts parameter, analogous to the existing parameter in pprint.PrettyPrinter & friends.

The proposed API is:

orepr = reprlib.Repr(sort_dicts=False)
orepr.repr(my_ordered_dict)

The default should be True to preserve the existing behavior.

A possible implementation is here:
https://github.com/python/cpython/compare/main...warden127:cpython:reprlib-sort_dicts

Has this already been discussed elsewhere?

I have already opened a thread under Ideas on discuss.python.org a couple days ago, but got no response (and therefore no objections *wink*).

Links to previous discussion of this feature:

• https://discuss.python.org/t/reprlib-repr-should-have-a-sort-dicts-parameter/108533

Linked PRs

• gh-155817

從 reprlib.Repr 開始，檢查目前的字典排序行為，然後將提議的 API 與 pprint.PrettyPrinter 進行比較。檢查相關的 PR gh-155817；完成的標準是 API 支援 sort_dicts=False，同時預設值 True 維持現有行為不變。