Skip to content

Index: ensure Index(DatetimeIndex) returns DatetimeIndex (fixes #1440) #1456

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 4 commits into from
Oct 30, 2025
+14 −2
Merged

Index: ensure Index(DatetimeIndex) returns DatetimeIndex (fixes #1440) #1456

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
fac9e80
Index: ensure Index(DatetimeIndex) returns DatetimeIndex (fixes #1440)
yusufcank34 Oct 29, 2025
dbfe078
Add isolated test for Index(DatetimeIndex) typing (GH#1440)
yusufcank34 Oct 29, 2025
773fdfc
Fix: Index(DatetimeIndex) now returns DatetimeIndex; consolidated tes…
yusufcank34 Oct 29, 2025
c5b0d15
Remove redundant test_datetime_index_1440.py and run pre-commit
yusufcank34 Oct 30, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
14 changes: 13 additions & 1 deletion pandas-stubs/core/indexes/base.pyi
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -187,7 +187,9 @@ class Index(IndexOpsMixin[S1], ElementOpsMixin[S1]):
@overload
def __new__(
cls,
data: Sequence[np.datetime64 | datetime] | IndexOpsMixin[datetime],
data: (
Sequence[np.datetime64 | datetime] | IndexOpsMixin[datetime] | DatetimeIndex
),
*,
dtype: TimestampDtypeArg = ...,
copy: bool = ...,
Expand Down Expand Up @@ -274,6 +276,16 @@ class Index(IndexOpsMixin[S1], ElementOpsMixin[S1]):
name: Hashable = ...,
tupleize_cols: bool = ...,
) -> IntervalIndex[Interval[Any]]: ...
@overload
def __new__(
cls,
data: DatetimeIndex,
*,
dtype: TimestampDtypeArg | None = ...,
copy: bool = ...,
name: Hashable = ...,
tupleize_cols: bool = ...,
) -> DatetimeIndex: ...
# generic overloads
@overload
def __new__(
Expand Down
2 changes: 1 addition & 1 deletion tests/indexes/test_datetime_index.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,7 @@ def test_index_relops() -> None:
)
x = pd.Timestamp("2022-01-17")
idx = check(
assert_type(pd.Index(data, name="date"), "pd.Index[pd.Timestamp]"), pd.Index
assert_type(pd.Index(data, name="date"), pd.DatetimeIndex), pd.DatetimeIndex
)
check(assert_type(data[x <= idx], pd.DatetimeIndex), pd.DatetimeIndex)
check(assert_type(data[x < idx], pd.DatetimeIndex), pd.DatetimeIndex)
Expand Down