Python子进程sudo返回错误:错误:['sudo:抱歉，你必须有一个tty才能运行sudo\n'] [英] Python subprocess sudo returns error: ERROR: ['sudo: sorry, you must have a tty to run sudo\n']

问题描述

这是我的代码:

import subprocess

HOST = 'host_name'
PORT = '111'
USER = 'user_name'
CMD = 'sudo su - ec2-user; ls'

process = subprocess.Popen(['ssh','{}@{}'.format(USER, HOST),
                        '-p', PORT, CMD],
                       shell=False,
                       stdout=subprocess.PIPE,
                       stderr=subprocess.PIPE)

result = process.stdout.readlines()

if not result:
    print "Im an error"
    err = process.stderr.readlines()
    print('ERROR: {}'.format(err))
else:
    print "I'm a success"
    print(result)

当我运行它时，我在终端中收到以下输出:

When I run this I receive the following output in my terminal:

dredbounds-computer: documents$ python terminal_test.py
Im an error
ERROR: ['sudo: sorry, you must have a tty to run sudo\n']

我尝试了多种方法，但我一直收到错误sudo:抱歉，您必须有一个 tty 才能运行 sudo".如果我只是通过终端手动完成它，它工作正常，但我需要自动执行此操作.我读到一个解决方法可能是在我的 ssh 调用中使用-t"或-tt"，但我还没有能够在子进程中成功实现这个(终端只是挂起我).任何人都知道如何修复我的代码或解决此问题?理想情况下，我想 ssh，然后切换到 sudo 用户，然后从那里运行一个文件(我只是将 ls 用于测试目的).

I've tried multiple things but I keep getting that error "sudo: sorry, you must have a tty to run sudo". It works fine if I just do it through the terminal manually, but I need to automate this. I read that a workaround might be to use '-t' or '-tt' in my ssh call, but I haven't been able to implement this successfully in subprocess yet (terminal just hangs for me). Anyone know how I can fix my code, or work around this issue? Ideally I'd like to ssh, then switch to the sudo user, and then run a file from there (I just put ls for testing purposes).

推荐答案

sudo 提示您输入密码，但它需要一个终端来执行此操作.传递 -t 或 -tt 提供了一个终端供远程命令运行，但现在它正在等待您输入密码.

sudo is prompting you for a password, but it needs a terminal to do that. Passing -t or -tt provides a terminal for the remote command to run in, but now it is waiting for you to enter a password.

process = subprocess.Popen(['ssh','-tt', '{}@{}'.format(USER, HOST),
                          '-p', PORT, CMD],
                          shell=False,
                          stdout=subprocess.PIPE,
                          stderr=subprocess.PIPE,
                          stdin=subprocess.PIPE)
process.stdin.write("password\r\n")

不过请记住，ls 不会运行，直到 after 由 su 启动的 shell 退出.您应该直接以 ec2-user 身份登录机器(如果可能)，或者只使用 sudo 运行您想要的任何命令而无需通过 su首先.

Keep in mind, though, that the ls doesn't run until after the shell started by su exits. You should either log into the machine as ec2-user directly (if possible), or just use sudo to run whatever command you want without going through su first.

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