Python paramiko 阻塞等待命令执行完毕并返回结果

sshClient = paramiko.SSHClient()
ssh_cli = sshClient
ssh_cli.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh_cli.connect(hostname=netone_ip, port=22, username='root', password='XXX')
stdin, stdout, stderr = ssh_cli.exec_command(f"poweroff")
msg = stderr.read().decode(encoding='UTF-8')
# print(msg)
# 阻塞等待命令执行完毕
while not stdout.channel.exit_status_ready():
    pass
print(stdout.read().decode())