python3 根据条件查询mysql数据库中数据；

import pymysql
ecshop=pymysql.connect('localhost','root','root','ecshop')
curs=ecshop.cursor()
sql="select consignee,email,tel from ecs_user_address where address_id>3 "
try:
    curs.execute(sql)
    a=curs.fetchall() #接收全部的返回结果；
    print(a)
    for i in a:
        print(i)
except:
    print('wrong')
ecshop.close()