1 files changed, 6 insertions, 6 deletions
diff --git a/lib/sqlalchemy/orm/exc.py b/lib/sqlalchemy/orm/exc.py
index a180f3725..b86e5c7c3 100644
--- a/lib/sqlalchemy/orm/exc.py
+++ b/lib/sqlalchemy/orm/exc.py
@@ -14,22 +14,22 @@ NO_STATE = (AttributeError, KeyError)
 
 class StaleDataError(sa.exc.SQLAlchemyError):
     """An operation encountered database state that is unaccounted for.
-    
+
     Two conditions cause this to happen:
-    
+
     * A flush may have attempted to update or delete rows
       and an unexpected number of rows were matched during 
       the UPDATE or DELETE statement.   Note that when 
       version_id_col is used, rows in UPDATE or DELETE statements
       are also matched against the current known version
       identifier.
-      
+
     * A mapped object with version_id_col was refreshed, 
       and the version number coming back from the database does
       not match that of the object itself.
-      
+
     """
-    
+
 ConcurrentModificationError = StaleDataError
 
 
@@ -43,7 +43,7 @@ class UnmappedError(sa.exc.InvalidRequestError):
 class DetachedInstanceError(sa.exc.SQLAlchemyError):
     """An attempt to access unloaded attributes on a 
     mapped instance that is detached."""
-    
+
 class UnmappedInstanceError(UnmappedError):
     """An mapping operation was requested for an unknown instance."""