Modified top-level name object for all cython Type classes

Author: Amir

pandas/_libs/interval.pyx

@@ -41,6 +41,8 @@ from pandas._libs.tslibs.util cimport (
     is_integer_object,
 )
 
+from pandas.util._decorators import set_module
+
 VALID_CLOSED = frozenset(["left", "right", "both", "neither"])
 
 

pandas/_libs/tslibs/period.pyx

@@ -115,6 +115,8 @@ from pandas._libs.tslibs.offsets import (
     BDay,
 )
 
+from pandas.util._decorators import set_module
+
 cdef:
     enum:
         INT32_MIN = -2_147_483_648LL
@@ -2830,6 +2832,7 @@ cdef class _Period(PeriodMixin):
         return period_format(self.ordinal, base, fmt)
 
 
+@set_module("pandas")
 class Period(_Period):
     """
     Represents a period of time.

pandas/_libs/tslibs/timedeltas.pyx

@@ -2,6 +2,7 @@ import collections
 import warnings
 
 from pandas.util._exceptions import find_stack_level
+from pandas.util._decorators import set_module
 
 cimport cython
 from cpython.object cimport (
@@ -1852,6 +1853,7 @@ cdef class _Timedelta(timedelta):
 # Python front end to C extension type _Timedelta
 # This serves as the box for timedelta64
 
+@set_module("pandas")
 class Timedelta(_Timedelta):
     """
     Represents a duration, the difference between two dates or times.

pandas/_libs/tslibs/timestamps.pyx

@@ -51,6 +51,7 @@ from pandas._libs.tslibs cimport ccalendar
 from pandas._libs.tslibs.base cimport ABCTimestamp
 
 from pandas.util._exceptions import find_stack_level
+from pandas.util._decorators import set_module
 
 from pandas._libs.tslibs.conversion cimport (
     _TSObject,
@@ -1648,7 +1649,7 @@ cdef class _Timestamp(ABCTimestamp):
 # Python front end to C extension type _Timestamp
 # This serves as the box for datetime64
 
-
+@set_module("pandas")
 class Timestamp(_Timestamp):
     """
     Pandas replacement for python datetime.datetime object.

pandas/tests/api/test_api.py

@@ -413,3 +413,7 @@ def test_set_module():
     assert pd.PeriodIndex.__module__ == "pandas"
     assert pd.RangeIndex.__module__ == "pandas"
     assert pd.TimedeltaIndex.__module__ == "pandas"
+    assert pd.Timestamp.__module__ == "pandas"
+    assert pd.Timedelta.__module__ == "pandas"
+    assert pd.Period.__module__ == "pandas"
+