获取与Python的bash输出 [英] Get bash output with python

问题描述

我试图做一个简单的命令，将让我在Python完全运行bash中，包括输出字符串。

此功能对我在工作中使用的系统工作很大：

 导入子DEF运行（命令）：
    输出= subprocess.check_output（指挥，壳=真）
    返回输出
 

不过，现在我使用它在国内和PATH变量不匹配，一个在我的终端。

所以，当我执行

 运行（LS）
 

我得到这样的：

  / bin / sh的：LS：命令未找到
 

这是有道理的，因为胡说的PATH我从运行得

 印数（'的/ usr / bin中/ ENV'）
 

是

  PATH = /库/框架/ Python.framework /版本/电流/斌/
 

现在，我可以通过弥补这一切：

 运行（'/斌/ LS）
 

但是，这违背了使用此命令，这是忠实地模仿庆典壳的全部目的。

我如何运行（）使用系统的PATH或创建一个可以工作的同等功能？

（关于使用的危险没有陈词滥调壳=真'，谢谢。这是无害的命令所有个人使用像 LS 和 PS AXW ）

解决方案

我要离开这个问题，因为我觉得的run（）上面的命令是有用的，我无法找到SO类似的事情。

不过，我的解决方案是非常系统的具体。但问题是，我崇高的文本2中运行该脚本，并手动替换与

路径Python.sublime的设置

 路径：/Library/Frameworks/Python.framework/Versions/Current/bin/
 

我这样做是因为我不得不让ST2找到蟒蛇的正确版本的问题。好了，这也将覆盖内ST2全系统的PATH变量，从而阻断我的简单的shell程序，如 LS访问。

删除了路径：从 ... 行Python.sublime的设置固定我的问题<。 / p>

修改

作为<一个href=\"http://stackoverflow.com/questions/23183924/get-bash-output-with-python/23184244#comment35458820_23184244\">suggested通过mklement0 ，改变线的追加的路径工程，以及：

 路径：$ PATH：/Library/Frameworks/Python.framework/Versions/Current/bin/
 

I'm trying to make a simple command that will let me run bash fully in Python, including output strings.

This function worked great on systems I use at my job:

import subprocess

def run(command):
    output = subprocess.check_output(command, shell=True)
    return output

However, now I'm using it at home and the PATH variable doesn't match the one in my Terminal.

So when I execute

run('ls')

I get this:

/bin/sh: ls: command not found

Which makes sense because, nonsensically, the PATH I get from running

print run('/usr/bin/env') 

is

PATH=/Library/Frameworks/Python.framework/Versions/Current/bin/

Now, I could remedy all this by using:

run('/bin/ls')

But that defeats the entire purpose of using this command, which is to faithfully emulate the bash shell.

How do I make run() use the system's PATH or create an equivalent function that just works?

(No platitudes about the dangers of using 'shell=True', please. This is all personal use with innocuous commands like ls and ps axw.)

解决方案

I'm leaving this question up because I think the run() command above is useful and I couldn't find anything similar on SO.

However, my solution was very system specific. The problem was, I am running this script within Sublime Text 2 and had manually replaced the path in Python.sublime-settings with

"path": "/Library/Frameworks/Python.framework/Versions/Current/bin/",

I did this because I'd had problems getting ST2 to find the right version of python. Well, this also overwrites the system-wide PATH variable within ST2, thus blocking my access to simple shell programs like ls.

Erasing the "path": ... line from Python.sublime-settings fixed my problem.

EDIT

As suggested by mklement0, changing the line to append the path works as well:

"path": "$PATH:/Library/Frameworks/Python.framework/Versions/Current/bin/",

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