python - fabric: run() detect if ssh connection is broken during command execution

Question

I'm using fabric.api to run command in the remote machine. The snippet of my code looks like this:

import time
import sys

from fabric.api import *
from fabric.api import env, run, task, hide, execute

ssh_key = <something>
ssh_key_passphase = <something>
env.host_string = <something>
env.user = <something>
env.port = 22

def execute_command_in_remote(cmd):
    env.user = ssh_user
    env.key_filename = ssh_key
    env.password = ssh_key_passphase
    result = run(cmd)
    return result

result=execute_command_in_remote(<some commands>)
....
....

While the command is being executed in the remote, if ssh connection is broken(due to the host restart), the program gets stuck. How can I get a signal about the broken ssh connection?

Answer 1

等待大神答复