diff --git a/python/cudf/cudf/core/column/column.py b/python/cudf/cudf/core/column/column.py
index 9c9b0fa5efb..dc4a547e61b 100644
--- a/python/cudf/cudf/core/column/column.py
+++ b/python/cudf/cudf/core/column/column.py
@@ -1952,7 +1952,9 @@ def as_column(
                 cudf.get_option("mode.pandas_compatible")
                 and inferred_dtype == "boolean"
             ):
-                raise MixedTypeError(f"Cannot have mixed values with {inferred_dtype}")
+                raise MixedTypeError(
+                    f"Cannot have mixed values with {inferred_dtype}"
+                )
             elif nan_as_null is False and (
                 any(
                     (isinstance(x, (np.floating, float)) and np.isnan(x))