wrong branch

Author: TomAugspurger

pandas/core/indexes/datetimelike.py

@@ -41,7 +41,6 @@ class DatetimeIndexOpsMixin(ExtensionOpsMixin):
     # override DatetimeLikeArrayMixin method
     copy = Index.copy
     view = Index.view
-    __setitem__ = Index.__setitem__
 
     # DatetimeLikeArrayMixin assumes subclasses are mutable, so these are
     # properties there.  They can be made into cache_readonly for Index