python发邮件的代码

# -*- coding: cp936 -*-
from email.MIMEText import MIMEText
from email.MIMEMultipart import MIMEMultipart
import smtplib
 
#创建一个带附件的实例
msg = MIMEMultipart()
#构造附件
att = MIMEText(open('e:\\test.txt').read(), 'base64', 'gb2312')
att["Content-Type"] = 'application/octet-stream'
#att["Content-Disposition"] = 'attachment; filename="e:\\test.txt"' 以附件形式发送
msg.attach(att)
mailto_list=["wsywfw3@163.com"]
#####################
# 设置服务器，用户名、口令以及邮箱的后缀
mail_host="smtp.163.com"
mail_user="wsywfw3@163.com"
mail_pass="7451920"
mail_postfix="163.com"
######################
def send_mail(to_list,sub,content):
    '''
    to_list:发给谁
    sub:主题
    content:内容
    send_mail("aaa@126.com","sub","content")
    '''
    me=mail_user+"<"+mail_user+"@"+mail_postfix+">"
    msg = MIMEText(content)
    msg = att
    msg['Subject'] = sub
    msg['from'] = me
    msg['To'] = ";".join(to_list)
    try:
        s = smtplib.SMTP()
        s.connect(mail_host)
        s.login(mail_user,mail_pass)
        s.sendmail(me, to_list, msg.as_string())
        s.close()
        return True
    except Exception, e:
        print str(e)
        return False
if __name__ == '__main__':
    if send_mail(mailto_list,"subject","content"):