将Bash变量读入Python脚本 [英] Read Bash variables into a Python script

问题描述

我正在运行一个bash脚本（test.sh），它会加载环境变量（来自env.sh）。那很好，但是我试图看到python可以加载bash脚本中已经存在的变量。

是的，我知道将我需要的特定变量作为参数传递可能会更容易，但是我很好奇是否有可能获得bash变量。 / p>

test.sh

 ＃！/ bin / bash 
 source env.sh 
 
 echo $ test1 
 
 python pythontest.py 
  

env.sh

 ＃！/ bin / bash 
 
 test1 =  hello 
  

pythontest.py

 ？ 
 print test1（这就是我想要的）
  

解决方案

您需要在bash中导出变量，否则它们将是bash的本地变量：

  export test1 
  

然后，以python

  import os 
 print os.environ [ test1] 
  

I am running a bash script (test.sh) and it loads in environment variables (from env.sh). That works fine, but I am trying to see python can just load in the variables already in the bash script.

Yes I know it would probably be easier to just pass in the specific variables I need as arguments, but I was curious if it was possible to get the bash variables.

test.sh

#!/bin/bash
source env.sh

echo $test1

python pythontest.py

env.sh

#!/bin/bash

test1="hello"

pythontest.py

?
print test1 (that is what I want)

解决方案

You need to export the variables in bash, or they will be local to bash:

export test1

Then, in python

import os
print os.environ["test1"]

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