利用socket包中的gethostname函数获取机器名之后，再调用gethostbyname函数获取机器的IP地址。

    import socket  
      
    def print_machine_info():  
        host_name = socket.gethostname()  
        ip_address = socket.gethostbyname(host_name)  
        print "Host name: %s" %host_name  
        print "IP address: %s" %ip_address  
      
    if __name__ == "__main__":  
        print_machine_info()