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ENH: set __module__ in core.reshape.{melt,pivot,tile} #62420

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Merged
merged 1 commit into from
Sep 24, 2025
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ENH: set __module__ in core.reshape.{melt,pivot,tile} #62420

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5 changes: 5 additions & 0 deletions pandas/core/reshape/melt.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,8 @@

import numpy as np

from pandas.util._decorators import set_module

from pandas.core.dtypes.common import (
is_iterator,
is_list_like,
Expand Down Expand Up @@ -39,6 +41,7 @@ def ensure_list_vars(arg_vars, variable: str, columns) -> list:
return []


@set_module("pandas")
def melt(
frame: DataFrame,
id_vars=None,
Expand Down Expand Up @@ -275,6 +278,7 @@ def melt(
return result


@set_module("pandas")
def lreshape(data: DataFrame, groups: dict, dropna: bool = True) -> DataFrame:
"""
Reshape wide-format data to long. Generalized inverse of DataFrame.pivot.
Expand Down Expand Up @@ -361,6 +365,7 @@ def lreshape(data: DataFrame, groups: dict, dropna: bool = True) -> DataFrame:
return data._constructor(mdata, columns=id_cols + pivot_cols)


@set_module("pandas")
def wide_to_long(
df: DataFrame, stubnames, i, j, sep: str = "", suffix: str = r"\d+"
) -> DataFrame:
Expand Down
4 changes: 4 additions & 0 deletions pandas/core/reshape/pivot.py
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Expand Up @@ -10,6 +10,7 @@
import numpy as np

from pandas._libs import lib
from pandas.util._decorators import set_module

from pandas.core.dtypes.cast import maybe_downcast_to_dtype
from pandas.core.dtypes.common import (
Expand Down Expand Up @@ -50,6 +51,7 @@
from pandas import DataFrame


@set_module("pandas")
def pivot_table(
data: DataFrame,
values=None,
Expand Down Expand Up @@ -699,6 +701,7 @@ def _convert_by(by):
return by


@set_module("pandas")
def pivot(
data: DataFrame,
*,
Expand Down Expand Up @@ -917,6 +920,7 @@ def pivot(
return result


@set_module("pandas")
def crosstab(
index,
columns,
Expand Down
3 changes: 3 additions & 0 deletions pandas/core/reshape/tile.py
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@
Timestamp,
lib,
)
from pandas.util._decorators import set_module

from pandas.core.dtypes.common import (
ensure_platform_int,
Expand Down Expand Up @@ -51,6 +52,7 @@
)


@set_module("pandas")
def cut(
x,
bins,
Expand Down Expand Up @@ -287,6 +289,7 @@ def cut(
return _postprocess_for_cut(fac, bins, retbins, original)


@set_module("pandas")
def qcut(
x,
q,
Expand Down
8 changes: 8 additions & 0 deletions pandas/tests/api/test_api.py
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Expand Up @@ -530,5 +530,13 @@ def test_set_module():
assert pd.to_numeric.__module__ == "pandas"
assert pd.NamedAgg.__module__ == "pandas"
assert pd.IndexSlice.__module__ == "pandas"
assert pd.lreshape.__module__ == "pandas"
assert pd.melt.__module__ == "pandas"
assert pd.wide_to_long.__module__ == "pandas"
assert pd.crosstab.__module__ == "pandas"
assert pd.pivot_table.__module__ == "pandas"
assert pd.pivot.__module__ == "pandas"
assert pd.cut.__module__ == "pandas"
assert pd.qcut.__module__ == "pandas"
assert api.typing.SeriesGroupBy.__module__ == "pandas.api.typing"
assert api.typing.DataFrameGroupBy.__module__ == "pandas.api.typing"
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