[BUG FIX] TimedeltaIndex constructor raises an AttributeError.

python/cudf/cudf/core/column/timedelta.py

@@ -21,7 +21,7 @@
 )
 from cudf.api.types import is_scalar
 from cudf.core.buffer import Buffer
-from cudf.core.column import ColumnBase, column, string
+from cudf.core.column import ColumnBase, column, column_empty_like, string
 from cudf.core.column.datetime import _numpy_to_pandas_conversion
 from cudf.utils.dtypes import np_to_pa_dtype
 from cudf.utils.utils import _fillna_natwise
@@ -227,6 +227,20 @@ def _binary_op_truediv(
 
         return lhs, rhs, out_dtype
 
+    def _make_copy_with_na_as_null(self):
+        """Return a copy with NaN values replaced with nulls."""
+        null = column_empty_like(self, masked=True, newsize=1)
+        na_value = np.timedelta64("nat", self.time_unit)
+        out_col = cudf._lib.replace.replace(
+            self,
+            column.build_column(
+                Buffer(np.array([na_value], dtype=self.dtype).view("|u1")),
+                dtype=self.dtype,
+            ),
+            null,
+        )
+        return out_col
+
     def binary_operator(
         self, op: str, rhs: BinaryOperand, reflect: bool = False
     ) -> "column.ColumnBase":

python/cudf/cudf/tests/test_timedelta.py

@@ -1406,3 +1406,23 @@ def test_error_values():
         match="TimeDelta Arrays is not yet implemented in cudf",
     ):
         s.values
+
+
+@pytest.mark.parametrize("dtype", utils.TIMEDELTA_TYPES)
+def test_create_TimedeltaIndex(dtype):
+    gdi = cudf.TimedeltaIndex(
+        [1132223, 2023232, 342234324, 4234324], dtype=dtype
+    )
+    pdi = gdi.to_pandas()
+
+    assert_eq(pdi, gdi)
+
+
+@pytest.mark.parametrize("dtype", utils.TIMEDELTA_TYPES)
+def test_create_TimedeltaIndex_with_name(dtype):
+    gdi = cudf.TimedeltaIndex(
+        [1132223, 2023232, 342234324, 4234324], dtype=dtype, name="delta-index"
+    )
+    pdi = gdi.to_pandas()
+
+    assert_eq(pdi, gdi)