Make requested changes

Use pandas is_scalar, remove deprecated constructor, add GH issue number to test

Author: gfkang

pandas/core/indexes/base.py

@@ -1066,7 +1066,7 @@ def take(
     ):
         if kwargs:
             nv.validate_take((), kwargs)
-        if np.isscalar(indices):
+        if is_scalar(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

@@ -71,7 +71,8 @@ def test_take(self, index):
                 index.freq
 
     def test_take_indexer_type(self):
-        integer_index = Int64Index([0, 1, 2, 3])
+        # GH#42875
+        integer_index = Index([0, 1, 2, 3])
         scalar_index = 1
         msg = "Expected indices to be array-like"
         with pytest.raises(TypeError, match=msg):