REF: cdef BusinessHourMixin (#34342)

Author: jbrockmendel

doc/source/reference/offset_frequency.rst

@@ -93,6 +93,8 @@ Properties
     BusinessHour.normalize
     BusinessHour.rule_code
     BusinessHour.n
+    BusinessHour.start
+    BusinessHour.end
 
 Methods
 ~~~~~~~
@@ -159,6 +161,8 @@ Properties
     CustomBusinessHour.normalize
     CustomBusinessHour.rule_code
     CustomBusinessHour.n
+    CustomBusinessHour.start
+    CustomBusinessHour.end
 
 Methods
 ~~~~~~~

pandas/_libs/tslibs/offsets.pyx

@@ -747,11 +747,13 @@ cdef class BaseOffset:
         self.__dict__.update(state)
 
         if 'weekmask' in state and 'holidays' in state:
-            calendar, holidays = _get_calendar(weekmask=self.weekmask,
-                                               holidays=self.holidays,
+            weekmask = state.pop("weekmask")
+            holidays = state.pop("holidays")
+            calendar, holidays = _get_calendar(weekmask=weekmask,
+                                               holidays=holidays,
                                                calendar=None)
-            object.__setattr__(self, "calendar", calendar)
-            object.__setattr__(self, "holidays", holidays)
+            self.calendar = calendar
+            self.holidays = holidays
 
     def __getstate__(self):
         """Return a pickleable state"""
@@ -1043,9 +1045,12 @@ cdef class BusinessMixin(SingleConstructorOffset):
         BaseOffset.__setstate__(self, state)
 
 
-class BusinessHourMixin(BusinessMixin):
+cdef class BusinessHourMixin(BusinessMixin):
     _adjust_dst = False
 
+    cdef readonly:
+        tuple start, end
+
     def __init__(
             self, n=1, normalize=False, start="09:00", end="17:00", offset=timedelta(0)
         ):
@@ -1092,8 +1097,8 @@ class BusinessHourMixin(BusinessMixin):
                 "one another"
             )
 
-        object.__setattr__(self, "start", start)
-        object.__setattr__(self, "end", end)
+        self.start = start
+        self.end = end
 
     def __reduce__(self):
         return type(self), (self.n, self.normalize, self.start, self.end, self.offset)