python链接Oracle数据库的方法

#coding=UTF-8  import cx_Oracle  def hello():    '''Hello cx_Oracle示例：    1)打印数据库版本信息.    2)查询表数据.'''    conn = cx_Oracle.connect("obs61","obs61","tx8i.hp")    cur = conn.cursor()    try:      print "Oracle Version:%s" % conn.version      print "Table SUB_POLICY rows:"      cur.execute('select * from wlan_future_event')      for row in cur:        print row    finally:      cur.close()      conn.close()  hello()