Fix: bt2: clear Python error indicator in trace and trace class destruction listeners

[babeltrace.git] / src / bindings / python / bt2 / bt2 / native_bt_trace_class.i.h

diff --git a/src/bindings/python/bt2/bt2/native_bt_trace_class.i.h b/src/bindings/python/bt2/bt2/native_bt_trace_class.i.h
index 5e91a6c21553f067473a5fc4ce98dc94ce60c2d8..329fda6555c04df0eae3e3b01226036bf37010c3 100644 (file)
--- a/src/bindings/python/bt2/bt2/native_bt_trace_class.i.h
+++ b/src/bindings/python/bt2/bt2/native_bt_trace_class.i.h
@@ -36,13 +36,15 @@ trace_class_destroyed_listener(const bt_trace_class *trace_class, void *py_calla
        }
 
        py_res = PyObject_CallFunction(py_callable, "(O)", py_trace_class_ptr);
-       if (py_res) {
-               BT_ASSERT(py_res == Py_None);
-       } else {
-               loge_exception("Trace class's destruction listener (Python)",
-                       BT_LOG_OUTPUT_LEVEL);
+       if (!py_res) {
+               logw_exception(BT_LOG_OUTPUT_LEVEL);
+               PyErr_Clear();
+               goto end;
        }
 
+       BT_ASSERT(py_res == Py_None);
+
+end:
        Py_DECREF(py_trace_class_ptr);
        Py_XDECREF(py_res);
 }
@@ -56,6 +58,7 @@ int bt_bt2_trace_class_add_destruction_listener(
 
        BT_ASSERT(trace_class);
        BT_ASSERT(py_callable);
+
        status = bt_trace_class_add_destruction_listener(
                trace_class, trace_class_destroyed_listener, py_callable, id);
        if (status == __BT_FUNC_STATUS_OK) {