Python Send mail

Scenario: When a Web monitor matches a corresponding keyword, the matching content is put into the Redis database. The Redis database is constantly increasing over time.
Function: Realize when the data in Redis database increases, want the user to send an email, remind to view.
Code:

# -*- coding: utf-8 -*-' @note:  to enable monitoring of the Redis database with changes to send mail ' Import redisimport  timeimport smtplib  from email.mime.text import mimetext red=redis. Strictredis ("172.16.2.156", 6379,8)  mailto_list=[' [email protected] ']  #邮件接收方mail_host = " Smtp.163.com "   #设置邮件服务器mail_user =" ABCD "     #用户名mail_pass =" abcd123 "     #口令  mail_postfix= "163.com"    #发件箱的后缀   def send_mail (to_list,sub,content):       me= "Scan_result" + "<" +mail_user+ "@" +mail_postfix+ ">"        msg = mimetext (content,_subtype= ' plain ', _charset= ' gb2312 ')        msg[' Subject '] = sub      msg[' from '] = me       msg[' to '] =  ";". Join (to_list)       try:    &nbsP;     server = smtplib. SMTP ()           server.connect (mail_host)            server.login (Mail_user,mail_pass)            server.sendmail (Me, to_list, msg.as_string ())            server.close ()            return true      except exception, e:           print str (e)            return false     def loop ():     lis=red.hgetall (' Alert '). VALUES ()     num=len (LIS)     time.sleep      lis=red.hgetall (' alert '). VALUES ()     num_2=len (LIS)    if num==num_2:        print  ' No  new keyword added '     else:         if send_mail (mailto_list, "keywords", "there have a keyword added  Please check inredis databases ... "):               print  "Send email success ..."            else:               print  "Send email false ..."      if __name__ = =  ' __main__ ':     while true:        try:               loop ()          excEpt:            continue 

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Python Send mail