Another minor fix

restrictedpython_code_eval.py

@@ -602,6 +602,9 @@ def _unsafe_execute(check_program, result, timeout,
             if '_apply_' not in exec_globals:
                 exec_globals['_apply_'] = _apply  # type: ignore
 
+            if '__name__' not in exec_globals:
+                exec_globals['__name__'] = 'code_eval'  # type: ignore
+
             if additional_locals is not None:
                 additional_globals.update(additional_locals)