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Merged
merged 2 commits into from
May 8, 2025
Merged

take method on NDDataFrame #1209

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4e29a0d
take method on NDDataFrame
May 6, 2025
6126dfb
add axis test cases & refactor
May 8, 2025
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1 change: 0 additions & 1 deletion pandas-stubs/core/frame.pyi
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Original file line number Diff line number Diff line change
Expand Up @@ -2298,7 +2298,6 @@ class DataFrame(NDFrame, OpsMixin, _GetItemHack):
) -> Series: ...
def swapaxes(self, axis1: Axis, axis2: Axis, copy: _bool = ...) -> Self: ...
def tail(self, n: int = ...) -> Self: ...
def take(self, indices: list, axis: Axis = ..., **kwargs: Any) -> Self: ...
@overload
def to_json(
self,
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3 changes: 3 additions & 0 deletions pandas-stubs/core/generic.pyi
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Original file line number Diff line number Diff line change
Expand Up @@ -46,6 +46,7 @@ from pandas._typing import (
P,
StorageOptions,
T,
TakeIndexer,
TimedeltaConvertibleTypes,
TimeGrouperOrigin,
TimestampConvention,
Expand Down Expand Up @@ -418,3 +419,5 @@ class NDFrame(indexing.IndexingMixin):
offset: TimedeltaConvertibleTypes | None = ...,
group_keys: _bool = ...,
) -> DatetimeIndexResampler[Self]: ...
@final
def take(self, indices: TakeIndexer, axis: Axis = ..., **kwargs: Any) -> Self: ...
3 changes: 0 additions & 3 deletions pandas-stubs/core/series.pyi
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Expand Up @@ -450,9 +450,6 @@ class Series(IndexOpsMixin[S1], NDFrame):
def __array__(self, dtype=...) -> np.ndarray: ...
@property
def axes(self) -> list: ...
def take(
self, indices: Sequence, axis: AxisIndex = ..., **kwargs: Any
) -> Series[S1]: ...
def __getattr__(self, name: _str) -> S1: ...
@overload
def __getitem__(
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11 changes: 11 additions & 0 deletions tests/test_frame.py
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Expand Up @@ -2984,6 +2984,17 @@ def test_iloc_tuple() -> None:
df = df.iloc[0:2,]


def test_take() -> None:
df = pd.DataFrame({"a": [1, 2, 3], "b": [4, 5, 6]})
check(assert_type(df.take([0, 1]), pd.DataFrame), pd.DataFrame)
check(assert_type(df.take([np.int64(0), np.int64(1)]), pd.DataFrame), pd.DataFrame)
check(assert_type(df.take(np.array([0, 1])), pd.DataFrame), pd.DataFrame)
check(assert_type(df.take([0, 1], "index"), pd.DataFrame), pd.DataFrame)
check(assert_type(df.take([0, 1], 0), pd.DataFrame), pd.DataFrame)
check(assert_type(df.take([0, 1], "columns"), pd.DataFrame), pd.DataFrame)
check(assert_type(df.take([0, 1], 1), pd.DataFrame), pd.DataFrame)


def test_set_columns() -> None:
# GH 73
df = pd.DataFrame({"a": [1, 2, 3], "b": [0.0, 1, 1]})
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10 changes: 10 additions & 0 deletions tests/test_series.py
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Expand Up @@ -1715,6 +1715,16 @@ def test_iloc_getitem_ndarray() -> None:
check(assert_type(values_s.iloc[indices_u64], pd.Series), pd.Series)


def test_take() -> None:
s = pd.Series(np.arange(10), name="a")
check(assert_type(s.take([0, 1]), pd.Series), pd.Series)
check(
assert_type(s.take([np.int64(0), np.int64(1)]), pd.Series),
pd.Series,
)
check(assert_type(s.take(np.array([0, 1])), pd.Series), pd.Series)


def test_iloc_setitem_ndarray() -> None:
# GH 85
# GH 86
Expand Down