diff -r c747242d22a6 -r bbe0d6985e59 _exceptions.py
--- a/_exceptions.py	Tue Sep 11 22:32:01 2012 +0200
+++ b/_exceptions.py	Mon Sep 17 17:48:55 2012 +0200
@@ -1,4 +1,4 @@
-# copyright 2003-2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+# copyright 2003-2012 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
 # contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
 #
 # This file is part of CubicWeb.
@@ -19,7 +19,7 @@
 
 __docformat__ = "restructuredtext en"
 
-from yams import ValidationError
+from yams import ValidationError as ValidationError
 
 # abstract exceptions #########################################################