after_install.py 文件源码

def clear_static_routes(host, port, user, passwd):
    # --------------????????----------------------
    con = None
    try:
        con = psycopg2.connect(database='cloud_controller', user=user,
                               password=passwd, host=host, port=port)
        cur = con.cursor()
        cur.execute('delete from static_routes')
        con.commit()

    except psycopg2.DatabaseError as e:
        if con:
            con.rollback()
        print('Error is %s' % e)
    finally:
        if con:
            con.close()