[pygobject] generictreemodel: Fix bad default return type for get_column_type

[Simon Feltman <sfeltman src gnome org>]

commit 6e0a32f6d9febbd782dc56a619974f009e79abd9
Author: Simon Feltman <sfeltman src gnome org>
Date:   Wed Feb 20 01:21:32 2013 -0800

    generictreemodel: Fix bad default return type for get_column_type

 pygtkcompat/generictreemodel.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/pygtkcompat/generictreemodel.py b/pygtkcompat/generictreemodel.py
index ad67d90..b5e66b0 100644
--- a/pygtkcompat/generictreemodel.py
+++ b/pygtkcompat/generictreemodel.py
@@ -223,7 +223,7 @@ class GenericTreeModel(GObject.GObject, Gtk.TreeModel):
         """Internal method."""
         return self.on_get_n_columns()
 
-    @handle_exception((False, None))
+    @handle_exception(GObject.TYPE_INVALID)
     def do_get_column_type(self, index):
         """Internal method."""
         return self.on_get_column_type(index)