python之pexpect用法及scp

def scp_cmd():

    passwd='*******'

    passwd1='*******'

    ssh = pexpect.spawn('scp -rp root@192.168.1.107:/backup root@192.168.1.102:/data')

    r = ''

    try:

        i = ssh.expect(['passWord: ', 'continue connecting (yes/no)?'])

        if i == 0 :

            ssh.sendline(passwd)

        elif i == 1:

            ssh.sendline('yes')

            ssh.expect('password:')

            ssh.sendline(passwd)

        b=ssh.expect(['password: ','continue connecting (yes/no)?'])

        if b==0:

            ssh.sendline(passwd1)

        elif b==1:

            ssh.sendline('yes')

            ssh.expect('password:')

            ssh.sendline(passwd1)

    except pexpect.EOF:

        ssh.close()

    else:

        r = ssh.read()

        ssh.expect(pexpect.EOF)

        ssh.close()

    return r

scp_cmd()