added exception import

diff --git a/lib/sqlalchemy/attributes.py b/lib/sqlalchemy/attributes.py
index cc926b19c8396495787fd556b3d311f472084d11..a402a9e91498c3c020391e3ecebe8d1ad8106dd0 100644 (file)
--- a/lib/sqlalchemy/attributes.py
+++ b/lib/sqlalchemy/attributes.py
@@ -28,6 +28,7 @@ via the GenericBackrefExtension object.
 """
 
 import util
+from exceptions import *
 
 class SmartProperty(object):
     """Provides a property object that will communicate set/get/delete operations