python备份数据库并发送邮件附件

记录下自己学习python的过程

这个是进行备份后，并发送邮件附件进行保存的功能。 相对来说比较简陋，可以自行修改，简略步骤，美化过程等。

示例代码：

#!/usr/bin/env python
# -*- coding:utf-8 -*-

import os
import time
import smtplib
import string
from email.header import Header
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText

def sendMail(datas):
    # 定义相关数据,请更换自己的真实数据
    smtpserver = 'smtp.163.com'
    sender = 'to_darcy@163.com'
    # receiver可设置多个，使用“,”分隔
    receiver = 'todarcy@163.com'
    username = 'to_darcy@163.com'
    password = ''

    msg = MIMEMultipart()
    for i in datas:
        att = MIMEText(open(i, "rb").read(), "base64", "utf-8")
        att["Content-Type"] = "application/octet-stream"
        i = i.replace("/tmp/data_backup/", "")
        att["Content-Disposition"] = 'attachment; filename= %s ' %i
        msg.attach(att)

    receivers = receiver
    toclause = receivers.split(',')
    msg['To'] = ",".join(toclause)
    # 添加主题，不然提示554 DT:SPM错误
    msg['SUBJECT'] = "数据库备份成功"

    # 登陆并发送邮件
    smtp = smtplib.SMTP()
    try:
        # # 打开调试模式
        # smtp.set_debuglevel(1)
        smtp.connect(smtpserver)
        smtp.login(username, password)
        smtp.sendmail(sender, receivers, msg.as_string())
    except:
        print("邮件发送失败！！")
    else:
        print("邮件发送成功")
    finally:
        smtp.quit()

def mysqldump():
    USER = 'root'
    PASSWORD = ''
    MYSQLDUMP = 'docker exec -i  mysql mysqldump '
    DATABASES = ['yao','icaesee']
    TO_BACKUP_DIR="/tmp/data_backup/"
    lists = [];

    for  DB in  DATABASES:
        Backupfile_name = TO_BACKUP_DIR + DB +  '-' + time.strftime('%Y-%m-%d') + '.sql'
        Gzipfile_name = Backupfile_name + '.gz'
        if os.path.isfile(Gzipfile_name):
            print Gzipfile_name + " is already backup"
        else:
            Backup_command = MYSQLDUMP  + ' -u' +  USER  + ' -p' + PASSWORD  + " " +  DB  + ' >'  +  Backupfile_name
            print Backup_command
            # break
            if os.system(Backup_command) == 0:
                lists.append(Gzipfile_name)
            else:
                print "Fail"
            # 打包压缩成.gz
            GZIP_command = "gzip " +  Backupfile_name
            if os.system(GZIP_command) == 0:
                    print 'Successful gzip' + Backupfile_name +  ' to ' + Gzipfile_name
            else:
                    print 'Fail gzip' + Backupfile_name +  ' to ' + Gzipfile_name
    if len(lists) > 0:
        sendMail(lists)

mysqldump()