CLN: Remove incorrect check, comment, rename

pandas/core/ops/__init__.py

@@ -32,6 +32,7 @@
     ABCDataFrame,
     ABCDatetimeArray,
     ABCDatetimeIndex,
+    ABCExtensionArray,
     ABCIndexClass,
     ABCSeries,
     ABCSparseSeries,
@@ -699,14 +700,9 @@ def wrapper(self, other, axis=None):
 
         if isinstance(other, ABCSeries) and not self._indexed_same(other):
             raise ValueError("Can only compare identically-labeled Series objects")
-        elif (
-            is_list_like(other)
-            and len(other) != len(self)
-            and not isinstance(other, (set, frozenset))
+        elif isinstance(
+            other, (np.ndarray, ABCExtensionArray, ABCIndexClass, ABCSeries)
         ):
-            raise ValueError("Lengths must match")
-
-        elif isinstance(other, (np.ndarray, ABCIndexClass, ABCSeries)):
             # TODO: make this treatment consistent across ops and classes.
             #  We are not catching all listlikes here (e.g. frozenset, tuple)
             #  The ambiguous case is object-dtype.  See GH#27803
@@ -756,9 +752,12 @@ def wrapper(self, other, axis=None):
                 )
 
         result = self._constructor(res_values, index=self.index)
-        # rename is needed in case res_name is None and result.name
-        #  is not.
-        return finalizer(result).rename(res_name)
+        result = finalizer(result)
+
+        # pin name for case where res_name is not and result.name is not
+        #  (because finalizer transferred self.name)
+        result.name = res_name
+        return result
 
     wrapper.__name__ = op_name
     return wrapper