Linux email disk space monitoring python example

#!/usr/bin/python
# -*- coding: UTF-8 -*-


import smtplib
import os
import commands,time 
from email.mime.text import MIMEText
#from email import MIMEText
disk_free=os.popen('df -lh')
list_disk=disk_free.read()
mailto_list=["2880329185@qq.com","2881280685@qq.com","2880089704@qq.com","2880329180@qq.com"]
mail_host="smtp.139.com" 
mail_user="user"  
mail_pass="password"  
mail_postfix="jljgl@.com" 
use01=commands.getstatusoutput("df -lh|awk '{print $4}'|grep '%'|awk -F '%' '{print $1}'|grep -v Use")
use02=commands.getstatusoutput("df -lh|awk '{print $5}'|grep '%'|awk -F '%' '{print $1}'|grep -v Use")
getrecord=commands.getstatusoutput("cat /home/oracle/script/mail.log|awk '{print $1}'")
gettime=commands.getstatusoutput("cat /home/oracle/script/mail.log|awk '{print $2}'")


free01=use01[1]
free02=use02[1]+'\n'+use01[1]
new_time=time.strftime("%Y%m%d", time.localtime())


def send_mail(to_list,sub,content):
  me=mail_postfix
  msg = MIMEText(content,_subtype='plain',_charset='gb2312')
  msg['Subject'] = sub
  msg['From'] = me
  msg['To'] = ";".join(to_list)
  try:
    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 SyntaxError:
    pass
    return False
if __name__ == '__main__':
    if free02>30:
        id=0
        if new_time>gettime[1]:
            while 1:
                getrecord=commands.getstatusoutput("cat /home/oracle/script/mail.log|awk '{print $1}'")
                id=id+1
                '''
                jl=open('/home/oracle/script/dd.log')
                record=jl.read()
                '''
                line_l=str(id)+' '+new_time




                df=open('/home/oracle/script/mail.log','w')
                df.writelines(line_l)
                df.close()
                
                if send_mail(mailto_list,"hello",list_disk):
                    print "发送成功"
                else:
                    print "发送失败"
                if getrecord[1]>0:
                    break
        else:
            line_m=str(0)+' '+new_time
            free=open('/home/oracle/script/mail.log','w')
            free.writelines(line_m)
            free.close()