diff --git a/src/sugar3/dispatch/dispatcher.py b/src/sugar3/dispatch/dispatcher.py
index 222fc7f50..e2a65866b 100644
--- a/src/sugar3/dispatch/dispatcher.py
+++ b/src/sugar3/dispatch/dispatcher.py
@@ -1,11 +1,6 @@
 import weakref
 import six
 
-try:
-    set
-except NameError:
-    from sets import Set as set  # Python 2.3 fallback
-
 from sugar3.dispatch import saferef
 
 WEAKREF_TYPES = (weakref.ReferenceType, saferef.BoundMethodWeakref)