better exception catch

diff --git a/lib/sqlalchemy/attributes.py b/lib/sqlalchemy/attributes.py
index c04e5e3a1014440a0d25d6e182d84276122e7551..d84ece1f6e4ee5c57f1359f6ae6d9c4d4c9528d9 100644 (file)
--- a/lib/sqlalchemy/attributes.py
+++ b/lib/sqlalchemy/attributes.py
@@ -270,8 +270,9 @@ class AttributeManager(object):
         
     def get_attribute(self, obj, key, **kwargs):
         """returns the value of an object's scalar attribiute."""
+        h = self.get_history(obj, key, **kwargs)
         try:
-            return self.get_history(obj, key, **kwargs).getattr()
+            return h.getattr()
         except KeyError:
             raise AttributeError(key)