BUG: Raise TypeError for scalar indexer in take

Author: gfkang

pandas/core/indexes/base.py

@@ -1059,6 +1059,8 @@ def take(
     ):
         if kwargs:
             nv.validate_take((), kwargs)
+        if np.isscalar(indices):
+            raise TypeError("Expected indices to be array-like")
         indices = ensure_platform_int(indices)
         allow_fill = self._maybe_disallow_fill(allow_fill, fill_value, indices)
 

pandas/tests/indexes/test_indexing.py

@@ -70,6 +70,13 @@ def test_take(self, index):
             with pytest.raises(AttributeError, match=msg):
                 index.freq
 
+    def test_take_indexer_type(self):
+        integer_index = Int64Index([0, 1, 2, 3])
+        scalar_index = 1
+        msg = "Expected indices to be array-like"
+        with pytest.raises(TypeError, match=msg):
+            integer_index.take(scalar_index)
+
     def test_take_minus1_without_fill(self, index):
         # -1 does not get treated as NA unless allow_fill=True is passed
         if len(index) == 0: