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A comment on Using enums to represent state in Rust. Parent comment

Re:Using enums to represent state in Rust by qsort on Friday September 22, 2023 @09:50AM (#37612047)
Python's equivalent of Rust's Enums would be the __match_args__ machinery rather than enums themselves, ironically.

They aren't as ergonomic or type-safe, and rather surprisingly the match statement is not an expression in Python's grammar, but regardless of its problems the match statement is very powerful, even more so than static equivalents.

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Re:Using enums to represent state in Rust by GalaxySnail on Friday September 22, 2023 @01:15PM (#37614713)
IMO Python's equivalent of Rust's Enums would be `typing.Union` [1]. It is more ergonomic and type-safe, and mypy supports type narrowing [2] and exhaustiveness checking on it [3].

[1] https://docs.python.org/3/library/stdtypes.html#types-union

[2] https://mypy.readthedocs.io/en/stable/type_narrowing.html

[3] https://docs.python.org/3/library/typing.html#typing.assert_...

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