python监控脚本，监控CPU，磁盘报警时发送邮件

 我是一个python初学者，刚刚写的一个python脚本，希望大神指点。

#!/usr/bin/env python 

#encoding=utf-8

# filename=mail.py

import os

import statvfs

import sys

import time

import email

import smtplib

import poplib

vfs=os.statvfs("/home")

available=vfs[statvfs.F_BAVAIL]*vfs[statvfs.F_BSIZE]*1.0/(1024*1024*1024)

capacity=vfs[statvfs.F_BLOCKS]*vfs[statvfs.F_BSIZE]*1.0/(1024*1024*1024)

used=available/capacity*100

HOST_NAME='11.207.62.23'

cpu_time=os.popen("top -bi -n 2 -d 0.02|awk '{print $5}'|cut -b 1-4").read().split('\n\n\n')[1].split('\n')[2]

def disk_mail():

    try:

        handle = smtplib.SMTP('smtp.qq.com',25)

        handle.login('username','your password')

        msg = '\n%s,Insufficient Disk Space, available space %.2f%%, available disk space %.2fG, The total size of disk space %.2fG' % (HOST_NAME,used,available,capaci

ty)

        print msg.strip()

        handle.sendmail('from username','to username',msg)

        handle.close()

        return 1

    except smtplib.SMTPConnectError, e:

        print "error", e

        return 0

def cpu_mail():

    try:

        handle = smtplib.SMTP('smtp.qq.com',25)

        handle.login('username','your password')

        msg = '\n%s,Less CPU usage, The current availability for %s%% ' % (HOST_NAME,cpu_time)

        print msg.strip()

        handle.sendmail('from username','to username',msg)

        handle.close()

        return 1

    except smtplib.SMTPConnectError, e:

        print "error", e

        return 0

#def check_mail():

#    try:

#        p = poplib.POP3('pop.163.com')

#        p.user('username')

#        p.pass_('password')

#        ret = p.stat()

#        print ret

#        msglist = p.list()

#        print msglist[0]

#        for msg in msglist[1]:

#            print msg

#    except poplib.error_proto, e:

#        print 'login failed',e

#        sys.exit(1)

if available >1:

        disk_mail()

if cpu_time > 10:

        cpu_mail()