diff --git a/models.py b/models.py
index 68fb1fd..b1332d5 100644
--- a/models.py
+++ b/models.py
@@ -1,13 +1,9 @@
 # -*- coding: utf-8 -*-
 import datetime
-import psycopg2
 
-from openerp.osv import orm
 from openerp.tools.translate import _
 
 from openerp import exceptions
-
-from openerp.tools.safe_eval import safe_eval
 from openerp import models, fields, api