Explicitly prohibit conversion of columns to host arrays.

rapidsai · Apr 28, 2021 · 6583e59 · 6583e59
1 parent f575e88
commit 6583e59
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/python/cudf/cudf/core/column/column.py b/python/cudf/cudf/core/column/column.py
@@ -1122,6 +1122,13 @@ def argsort(
         )
         return sorted_indices
 
+    def __array__(self, dtype=None):
+        raise TypeError(
+            "Implicit conversion to a host NumPy array via __array__ is not "
+            "allowed. To explicitly construct a host array, consider using "
+            ".to_array()"
+        )
+
     @property
     def __cuda_array_interface__(self):
         raise NotImplementedError(