fixup

Author: MarcoGorelli

pandas-stubs/_libs/tslibs/timestamps.pyi

@@ -30,11 +30,11 @@ from typing_extensions import (
 )
 
 from pandas._libs.tslibs import (
-    BaseOffset,
     Period,
     Tick,
     Timedelta,
 )
+from pandas._libs.tslibs.offsets import DateOffset
 from pandas._typing import (
     ShapeT,
     TimestampNonexistent,
@@ -282,7 +282,7 @@ class Timestamp(datetime, SupportsIndex):
     def is_year_end(self) -> bool: ...
     def to_pydatetime(self, warn: bool = ...) -> datetime: ...
     def to_datetime64(self) -> np.datetime64: ...
-    def to_period(self, freq: BaseOffset | str | None = ...) -> Period: ...
+    def to_period(self, freq: DateOffset | str | None = ...) -> Period: ...
     def to_julian_date(self) -> np.float64: ...
     @property
     def asm8(self) -> np.datetime64: ...

pandas-stubs/core/frame.pyi

@@ -1691,7 +1691,7 @@ class DataFrame(NDFrame, OpsMixin, _GetItemHack):
     ) -> Self: ...
     def to_period(
         self,
-        freq: Frequency | None = None,
+        freq: str | DateOffset | None = None,
         axis: Axis = 0,
         copy: _bool = True,
     ) -> Self: ...

pandas-stubs/core/indexes/accessors.pyi

@@ -225,7 +225,9 @@ class _DatetimeLikeNoTZMethods(
         _DTToPeriodReturnType,
     ],
 ):
-    def to_period(self, freq: Frequency | None = ...) -> _DTToPeriodReturnType: ...
+    def to_period(
+        self, freq: str | DateOffset | None = ...
+    ) -> _DTToPeriodReturnType: ...
     def tz_localize(
         self,
         tz: TimeZones,

pandas-stubs/core/series.pyi

@@ -1241,7 +1241,9 @@ class Series(IndexOpsMixin[S1], NDFrame):
         how: ToTimestampHow = "start",
         copy: _bool = True,
     ) -> Series[S1]: ...
-    def to_period(self, freq: _str | None = None, copy: _bool = True) -> DataFrame: ...
+    def to_period(
+        self, freq: _str | DateOffset | None = None, copy: _bool = True
+    ) -> DataFrame: ...
     @property
     def str(
         self,