简短python 发送qq邮件代码

import smtplib
from email.mime.text import MIMEText
_user = "sigeken@qq.com"
_pwd  = "***"
_to   = "402363522@qq.com"

#使用MIMEText构造符合smtp协议的header及body
msg = MIMEText("乔装打扮，不择手段")
msg["Subject"] = "don't panic"
msg["From"]    = _user
msg["To"]      = _to

s = smtplib.SMTP("smtp.qq.com", timeout=30)#连接smtp邮件服务器,端口默认是25
s.login(_user, _pwd)#登陆服务器
s.sendmail(_user, _to, msg.as_string())#发送邮件
s.close()