odoo连接数据库操作数据

#！/usr/bin/env python
# _*_ coding: utf-8 _*_

import psycopg2

db = psycopg2.connect("dbname=linxerp user=postgres")
vals = db.cursor()

vals.execute("select id from ir_translation where value='产品接收证明单号: ';")
tables = vals.fetchall()
for table in tables:
    information = "update ir_translation set value='产品验收证明单号: ' where id="+str(table[0])+";"
    print information
    vals.execute(information)