__init__.py 文件源码

def __init__(self, host):
        if isinstance(host, Host):
            self.host = host.host
            self.ip = host.ip
            self.hostname = host.hostname
            return
        elif not host:
            raise ValueError("Host argument must be hostname or IP address")

        self.host = host
        if self.is_ip():
            self.ip = host
            self.hostname = self.get_host_by_addr() or host
        else:
            self.hostname = host
            self.ip = self.get_host_by_name() or None