--- a/iro/model/utils.py	Thu Mar 29 17:21:46 2012 +0200
+++ b/iro/model/utils.py	Thu Mar 29 17:28:13 2012 +0200
@@ -1,6 +1,5 @@
 from sqlalchemy.orm import sessionmaker
 
-from .session import IroSession
 class WithSession(object):
     '''a with statement for a database session connection.'''
     def __init__(self, engine, autocommit=False):
@@ -14,7 +13,6 @@
         self.autocommit=autocommit
     
     def __enter__(self):
-        self.session = sessionmaker(bind=self.engine, class_ = IroSession)()
         """returns a vaild session object"""
         self.session = sessionmaker(bind=self.engine)()
         return self.session