fabric - connect to machines with wierd prompts

问题

Since fabric is based on paramiko, is there any API to connect to virtual appliance with ssh-process having weird interactive shells ?

How can fabric interact with processes acting as such shells.

e.g. VM acting as switch having prompt 'switch-> ' when login is done over ssh. fabfile.py need to feed commands thereafter. once such command is to deploy images over tftpboots. The VM provides both telnet/ssh interface with user/password)

I tried below code, but it does not work -

 @task
 taskA():
      with settings(prompts={'switch-> ' : 'bringkickstart img.bin' }):
          run('save image')

来源：https://stackoverflow.com/questions/37402849/fabric-connect-to-machines-with-wierd-prompts