python 获取mac地址的2种方法

def get_mac_address():
　　import uuid
      node = uuid.getnode()
      mac = uuid.UUID(int = node).hex[-12:]
　　return mac

def get_mac_address():
    '''
    @summary: return the MAC address of the computer
    '''
    import sys
    import os
    mac = None
    if sys.platform == "win32":
        for line in os.popen("ipconfig /all"):
            print line
            if line.lstrip().startswith("Physical Address"):
                mac = line.split(":")[1].strip().replace("-", ":")
                break
    else:
        for line in os.popen("/sbin/ifconfig"):
            if 'Ether' in line:
                mac = line.split()[4]
                break
    return mac