Description: switch binding generator to Python3.
Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=975818
Author: Nicolas Boulenguez <nicolas@debian.org>

--- a/contrib/binding_gtkada.py
+++ b/contrib/binding_gtkada.py
@@ -433,7 +433,7 @@
         if self.node is not None:
             extra = self.node.find("extra")
             if extra is not None:
-                return extra.getchildren()
+                return list (extra)
         return None
 
     def get_default_param_node(self, name):