python调用qq邮箱发送邮件

代码如下，需要qq邮箱开启授权码

import smtplib
from email.mime.text import MIMEText
from email.header import Header

message = MIMEText('邮件内容')   # 邮件内容
message['From'] = Header('xxx@qq.com')   # 邮件发送者名字
message['To'] = Header('xxx@qq.com')   # 邮件接收者名字
message['Subject'] = Header('邮件主题')   # 邮件主题

mail = smtplib.SMTP()
mail.connect("smtp.qq.com")   # 连接 qq 邮箱
mail.login("xxx@qq.com", "授权码")   # 账号和授权码
mail.sendmail("xxx@qq.com", ["xxx@qq.com"], message.as_string())   # 发送账号、接收账号和邮件信息