sshfw.py 文件源码

def login(self, switch):
        """ login
        logs into specified switch """

        # set up ssh client
        ssh_setup = paramiko.SSHClient()

        # add missing host key policy (set as auto)
        ssh_setup.set_missing_host_key_policy(paramiko.AutoAddPolicy())

        # connect to switch
        ssh_setup.connect(
            switch, 
            username=self.user, 
            password=self.user_pw, 
            look_for_keys=False, 
            allow_agent=False,
            )
        # set up transport channel for session
        transport = ssh_setup.get_transport()

        # invoke session
        self.ssh_session = transport.open_session()

        # set up for interactive mode, multiple commands - pty
        self.ssh_session.get_pty()

        # invoke session's shell
        self.ssh_session.invoke_shell()

        # keep session active with parameters while class is initialized
        self.ssh_session.keep_this = ssh_setup