diff --git a/src/authority/actions.py b/src/authority/actions.py
index 0349fc6..b80edce 100644
--- a/src/authority/actions.py
+++ b/src/authority/actions.py
@@ -10,11 +10,6 @@ from django.utils.translation import ugettext_lazy, ugettext as _
 from django.contrib.contenttypes.models import ContentType
 from django.forms.formsets import all_valid
 
-try:
-    set
-except NameError:
-    from sets import Set as set     # Python 2.3 fallback
-
 try:
     from django.contrib.admin import actions
 except ImportError: