python 修改windows机器名 添加windows域

#!/bin/python
#
#coding=gbk
import os,sys
import linecache
import uuid
def config():
                                                         
    '获取配置文件里面的mac和主机名'
                                                         
    fn = ('c:addconfig.cfg')
    lines = [ x.split('n') for x in linecache.getlines(fn) if x.startswith('R')]
    ip_mac_lines = [ x[0] for x in lines ]
    return ip_mac_lines
def host_mac():
    '获取客户机器的mac地址'
#    node = uuid.getnode()
#    mac = uuid.UUID(int=node)
#    adr_mac = mac.hex[-12:]
#    return adr_mac
    #KVM虚拟机获取mac地址的方法
    mac = os.popen('getmac').read()
    mac_adr = mac.split('n')[3]
    mac_adr1 = mac_adr.split(' ')[0].replace('-','')
    return mac_adr1
def replace_host():
                                                         
    '根据mac地址获取出对应更改主机的主机名'
                                                         
    cg_host = config()
    h_mac = host_mac().lower()
    for x in cg_host:
        if x.lower().split(' ')[-1] == h_mac:
            return x.lower().split(' ')[0]
if os.name == 'nt':
   repl_host = replace_host()
   hostname = os.popen('hostname').read().replace('n','')
   if hostname == repl_host:
      #windows加域
                                                           
      os.system('netdom join {0} /domain:render.com /userd:renderadministrator /passwordd:nscc_123456 >C:addad.txt'.format(repl_host))
      os.system('regedit /s C:adddenglu.reg')
      os.system('shutdown -r -t 20')
      os.system('del "C:ProgramDataMicrosoftWindowsStart MenuProgramsStartuprh.lnk"')                                           
   else:
      #生成更改主机名的注册表，在系统注册，然后重启系统
      regedit1 = r'Windows Registry Editor Version 5.00'
      regedit2 = r'[HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlComputerNameComputerName]'
      regedit3 = r'"ComputerName"="{0}"'.format(repl_host)
      regedit4 = r'[HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesTcpipParameters]'
      regedit5 = r'"NV Hostname"="{0}"'.format(repl_host)
      regedit6 = r'"Hostname"="{0}"'.format(repl_host)
      f_file = '{0}n{1}n{2}n{3}n{4}n{5}'.format(regedit1,regedit2,regedit3,regedit4,regedit5,regedit6)
      f_name = open('C:addComputerName.reg','w')
      f_name.write(f_file)
      f_name.close()
      os.system('regedit /s C:addComputerName.reg')
      os.system('shutdown -r -t 30')
else:                                                         
    print 'OS is not windows system'