python定时按日期备份MySQL数据并压缩的方法

#-*- coding:utf-8 -*-
  
import os
import time
import tarfile
import zipfile
  
'''
mysqldump
Usage: mysqldump [OPTIONS] database [tables]
OR   mysqldump [OPTIONS] --databases [OPTIONS] DB1 [DB2 DB3...]
OR   mysqldump [OPTIONS] --all-databases [OPTIONS]
For more options, use mysqldump --help
'''
db_host="localhost"
db_user="root"
db_passwd="root"
db_name="crm"
db_charset="utf8"
db_backup_name=r"c:\crm_%s.sql" %(time.strftime("%Y%m%d%H%M"))
  
zip_src = db_backup_name
zip_dest = zip_src + ".zip"
  
def zip_files():
  f = zipfile.ZipFile(zip_dest, 'w' ,zipfile.ZIP_DEFLATED) 
  f.write(zip_src)
  f.close() 
   
if __name__ == "__main__":
  print("begin to dump mysql database crm...");
  os.system("mysqldump -h%s -u%s -p%s %s --default_character-set=%s > %s" %(db_host, db_user, db_passwd, db_name, db_charset, db_backup_name))
  print("begin zip files...")
  zip_files()
  print("done, pyhon is great!")