--- a/xmlschema/testing/builders.py
+++ b/xmlschema/testing/builders.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-#
 # Copyright (c), 2016-2020, SISSA (International School for Advanced Studies).
 # All rights reserved.
 # This file is distributed under the terms of the MIT License.