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type freq in shift #1108

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Merged
merged 7 commits into from
Feb 10, 2025
Merged

type freq in shift #1108

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e85659a
type freq in shift
MarcoGorelli Feb 7, 2025
e4e21b5
assert return type
MarcoGorelli Feb 8, 2025
3c9dc5b
frame too
MarcoGorelli Feb 8, 2025
eb6c70b
Merge remote-tracking branch 'upstream/main' into type-shift
MarcoGorelli Feb 10, 2025
03ffe84
type return as Series[Any]
MarcoGorelli Feb 10, 2025
bb989c1
use just Series
MarcoGorelli Feb 10, 2025
ced86b2
Update tests/test_series.py
MarcoGorelli Feb 10, 2025
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3 changes: 2 additions & 1 deletion pandas-stubs/core/frame.pyi
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Original file line number Diff line number Diff line change
Expand Up @@ -84,6 +84,7 @@ from pandas._typing import (
FilePath,
FillnaOptions,
FormattersType,
Frequency,
GroupByObjectNonScalar,
HashableT,
HashableT1,
Expand Down Expand Up @@ -855,7 +856,7 @@ class DataFrame(NDFrame, OpsMixin, _GetItemHack):
def shift(
self,
periods: int = ...,
freq=...,
freq: Frequency | dt.timedelta | None = ...,
axis: Axis = ...,
fill_value: Hashable | None = ...,
) -> Self: ...
Expand Down
3 changes: 2 additions & 1 deletion pandas-stubs/core/series.pyi
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Expand Up @@ -119,6 +119,7 @@ from pandas._typing import (
FilePath,
FillnaOptions,
FloatDtypeArg,
Frequency,
GroupByObjectNonScalar,
HashableT1,
IgnoreRaise,
Expand Down Expand Up @@ -1219,7 +1220,7 @@ class Series(IndexOpsMixin[S1], NDFrame):
def shift(
self,
periods: int = ...,
freq=...,
freq: Frequency | timedelta | None = ...,
axis: AxisIndex = ...,
fill_value: object | None = ...,
) -> Series[S1]: ...
Expand Down
5 changes: 4 additions & 1 deletion tests/test_frame.py
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Expand Up @@ -516,10 +516,13 @@ def test_types_sort_values_with_key() -> None:


def test_types_shift() -> None:
df = pd.DataFrame(data={"col1": [1, 1], "col2": [3, 4]})
df = pd.DataFrame(
data={"col1": [1, 1], "col2": [3, 4]}, index=pd.date_range("2020", periods=2)
)
df.shift()
df.shift(1)
df.shift(-1)
df.shift(freq="1D")


def test_types_rank() -> None:
Expand Down
3 changes: 2 additions & 1 deletion tests/test_series.py
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Expand Up @@ -416,10 +416,11 @@ def test_types_sort_values_with_key() -> None:


def test_types_shift() -> None:
s = pd.Series([1, 2, 3])
s = pd.Series([1, 2, 3], index=pd.date_range("2020", periods=3))
s.shift()
s.shift(axis=0, periods=1)
s.shift(-1, fill_value=0)
s.shift(freq="1D")


def test_types_rank() -> None:
Expand Down