Type annotation pandas/compat/pickle compat.py (#25991)

Author: vaibhavhrt

mypy.ini

@@ -11,9 +11,6 @@ ignore_errors=True
 [mypy-pandas.compat.numpy.function]
 ignore_errors=True
 
-[mypy-pandas.compat.pickle_compat]
-ignore_errors=True
-
 [mypy-pandas.core.accessor]
 ignore_errors=True
 

pandas/compat/pickle_compat.py

@@ -138,7 +138,7 @@ def load_reduce(self):
 # our Unpickler sub-class to override methods and some dispatcher
 # functions for compat
 
-class Unpickler(pkl._Unpickler):
+class Unpickler(pkl._Unpickler):  # type: ignore
 
     def find_class(self, module, name):
         # override superclass