问题描述

所以我正在尝试使用子进程从 python 脚本中以超级用户身份运行一个进程.在 ipython shell 中类似于

So I'm trying to get a process to be run as a super user from within a python script using subprocess. In the ipython shell something like

proc = subprocess.Popen('sudo apach2ctl restart',
                        shell=True, stdin=subprocess.PIPE,
                        stdout=subprocess.PIPE,
                        stderr=subprocess.PIPE)

工作正常，但只要我将它粘贴到脚本中，我就会开始得到:sudo: apach2ctl: command not found.

works fine, but as soon as I stick it into a script I start getting: sudo: apach2ctl: command not found.

我猜这是由于 sudo 在 ubuntu 上处理环境的方式.(我也试过 sudo -E apche2ctl restart 和 sudo env path=$PATH apache2ctl restart 无济于事)

I would guess this is due to the way sudo handles environments on ubuntu. (I've also tried sudo -E apche2ctl restart and sudo env path=$PATH apache2ctl restart with no avail)

所以我的问题基本上是，如果我想以超级用户身份运行 apache2ctl restart 并在需要时提示用户输入超级用户密码，我应该怎么做呢?我无意在脚本中存储密码.

So my question is basically, if I want to run apache2ctl restart as super user that prompts the user for the super user password when required, how should I go about doing this? I have no intention of storing passwords in the script.

我尝试将命令作为字符串传递并标记为列表.在 python 解释器中，我会用一个字符串正确地得到密码提示(在 python 脚本中仍然不能像我原来的问题那样工作)，一个列表只是给出了 sudo 的帮助屏幕.

I've tried passing in the commands as both a string and tokenized into a list. In the python interpreter, with a string I'll get the password prompt properly (still doesnt work in a python script as in my original problem), a list just gives the help screen for sudo.

编辑 2:

所以我收集到的是，虽然当 shell=True 时 Popen 会像字符串一样处理一些命令，但它需要

So what I gather is that while Popen will work with some commands just as strings when shell=True, it takes

proc = subprocess.Popen(['sudo','/usr/sbin/apache2ctl','restart'])

没有 'shell=True' 让 sudo 工作.

without 'shell=True' to get sudo to work.

谢谢！

推荐答案

尝试给出 apache2ctl 的完整路径.

Try giving the full path to apache2ctl.

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