Index: gtimelog/src/gtimelog/main.py
===================================================================
--- gtimelog.orig/src/gtimelog/main.py	2011-02-02 12:39:51.312313247 +0100
+++ gtimelog/src/gtimelog/main.py	2011-02-02 12:40:10.142313247 +0100
@@ -20,6 +20,7 @@
 # we have to try pygtk first, then fall back to GI; if we have a too old GI
 # (without require_version()), we can't import pygtk on top of gi.repo.Gtk.
 try:
+    raise ImportError('we want to use GI')
     import pygtk
     pygtk.require('2.0')
     import gtk
