diff -urNp a/tools/xml2po.py b/tools/xml2po.py
--- a/tools/xml2po.py	2018-07-20 06:53:06.696414649 +0200
+++ b/tools/xml2po.py	2018-07-20 08:33:21.512336088 +0200
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 # -*- encoding: utf-8 -*-
 # Copyright (c) 2004, 2005, 2006 Danilo Šegan <danilo@gnome.org>.
 # Copyright (c) 2009 Claude Paroz <claude@2xlibre.net>.