More preparations
@@ -284,7 +284,7 @@ class VM:
mode = "exec"
result_attributes = self._execute_source(source, filename, mode,
- getattr(cmd, "debug_mode", False),
+ FancyTracer if getattr(cmd, "debug_mode", False) else SimpleRunner,
getattr(cmd, "global_vars", None))
result_attributes["num_stripped_question_marks"] = num_stripped_question_marks
