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Add variance checks to aggregation tests and type assertions #1546

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Add variance checks to aggregation tests and type assertions #1546

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42e67a5
Add variance checks to aggregation tests and type assertions
roman-y-wu Dec 13, 2025
adb98a5
Undo the tests/_typing.py change
roman-y-wu Dec 13, 2025
48b7070
TYP: Fix Series.var() return type annotations:
roman-y-wu Dec 16, 2025
5f8c5b2
GH1546 PR Feedback
loicdiridollou Dec 19, 2025
4985c34
Merge branch 'main' of github.com:pandas-dev/pandas-stubs
loicdiridollou Dec 19, 2025
60eaed7
Update tests/series/test_agg.py
loicdiridollou Dec 19, 2025
854b965
Fix type checking for series variance function
loicdiridollou Dec 19, 2025
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23 changes: 21 additions & 2 deletions pandas-stubs/core/series.pyi
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Original file line number Diff line number Diff line change
Expand Up @@ -4610,14 +4610,33 @@ class Series(IndexOpsMixin[S1], ElementOpsMixin[S1], NDFrame):
**kwargs: Any,
) -> np_1darray: ...
def tolist(self) -> list[S1]: ...
@overload
def var(
self,
self: Series[Never],
axis: AxisIndex | None = 0,
skipna: _bool | None = True,
ddof: int = 1,
numeric_only: _bool = False,
**kwargs: Any,
) -> Scalar: ...
) -> float: ...
@overload
def var(
self: Series[complex],
axis: AxisIndex | None = 0,
skipna: _bool | None = True,
ddof: int = 1,
numeric_only: _bool = False,
**kwargs: Any,
) -> np.float64: ...
@overload
def var(
self: SupportsGetItem[Scalar, SupportsTruedivInt[S2]],
axis: AxisIndex | None = 0,
skipna: _bool | None = True,
ddof: int = 1,
numeric_only: _bool = False,
**kwargs: Any,
) -> S2: ...
# Rename axis with `mapper`, `axis`, and `inplace=True`
@overload
def rename_axis(
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