[issue45959] Teach pprint about dict views

[Daniel Diniz]

Daniel Diniz <ajaksu at gmail.com> added the comment:

I have tried to add this. The PR adds:
- PrettyPrinter._pprint_dict_view to handle dict_keys and dict_values (sorted with _safe_key).
= PrettyPrinter._pprint_dict_items_view to handle dict_items (sorted using _safe_tuple).
- Tests.

Would a NEWS entry or other form of documentation be necessary?

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