diff -r 9e7847dcbd94 -r 539ed3fb27cb web/formwidgets.py
--- a/web/formwidgets.py	Mon Mar 11 18:37:01 2013 +0100
+++ b/web/formwidgets.py	Fri Feb 22 19:36:40 2013 +0100
@@ -94,6 +94,7 @@
 """
 __docformat__ = "restructuredtext en"
 
+from functools import reduce
 from datetime import date
 from warnings import warn