python生成随机mac地址

#!/usr/bin/python
import random
def randomMAC():
        mac = [ 0x52, 0x54, 0x00,
                random.randint(0x00, 0x7f),
                random.randint(0x00, 0xff),
                random.randint(0x00, 0xff) ]
        return ':'.join(map(lambda x: "%02x" % x, mac))
print randomMAC()