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@teshao teshao commented Apr 6, 2024

When trying to use series.Apply() on "frozenset", it raises the following error:

error: Argument 1 to "apply" of "Series" has incompatible type "type[frozenset[Any]]"; expected "Callable[..., str | bytes | date | datetime | timedelta | datetime64 | timedelta64 | bool | int | float | Timestamp | Timedelta | complex | Sequence[Any] | set[Any] | Mapping[Any, Any] | NAType | None]" [arg-type]

Fixed this by adding "frozenset" to the enumerated Callable output types.
Created a test case by calling series.Apply(frozenset) and running "poe mypy".

@twoertwein twoertwein requested a review from Dr-Irv April 8, 2024 01:29
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thanks @teshao

@Dr-Irv Dr-Irv merged commit 9dd9eee into pandas-dev:main Apr 9, 2024
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Series apply frozenset raises error, frozenset not in enumerated Callable output types
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