Python网络编程——设备名和IPv4地址

1.快速查看主机名和对应的IP地址小程序

 import socket

 def print_machine_info():  # 定义print_machine_info()类
     host_name = socket.gethostname()  # 获取主机名
     ip_address = socket.gethostbyname(host_name)  # 获取主机名对应的IP地址
     print("Host name: %s" % host_name)  # 打印主机名
     print("IP address： %s" % ip_address)  # 打印主机名对应的IP地址

 if __name__ == '__main__':
     print_machine_info()
     # 在命令行中调用这个模块,print_machine_info()函数会自动运行
     # 如果从其他脚本中导入,需要用户手动调用这个函数

2.关于gethostname()和gethostbyname()解释

def gethostname():  # real signature unknown; restored from __doc__
    """
    gethostname() -> string

    Return the current host name.
    """
    return

def gethostbyname(host):  # real signature unknown; restored from __doc__
    """
    gethostbyname(host) -> address

    Return the IP address (a string of the form '255.255.255.255') for a host.
    """
    pass