python定时按日期备份MySQL数据并压缩

#-*- coding:utf-8 -*- import osimport timeimport tarfileimport zipfile '''mysqldumpUsage: 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_namezip_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!")