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        在 Python 中读写环境变量?

        Reading and writing environment variables in Python?(在 Python 中读写环境变量?)

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                • 本文介绍了在 Python 中读写环境变量?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着跟版网的小编来一起学习吧!

                  问题描述

                  我的 python 脚本调用了许多 python 函数和 shell 脚本.我想在 Python(主调用函数)和所有子进程(包括 shell 脚本)中设置环境变量以查看环境变量集.

                  My python script which calls many python functions and shell scripts. I want to set a environment variable in Python (main calling function) and all the daughter processes including the shell scripts to see the environmental variable set.

                  我需要像这样设置一些环境变量:

                  I need to set some environmental variables like this:

                  DEBUSSY 1
                  FSDB 1
                  

                  1 是一个数字,而不是一个字符串.此外,如何读取存储在环境变量中的值?(就像另一个 python 子脚本中的 DEBUSSY/FSDB.)

                  1 is a number, not a string. Additionally, how can I read the value stored in an environment variable? (Like DEBUSSY/FSDB in another python child script.)

                  推荐答案

                  尝试使用 os 模块.

                  import os
                  
                  os.environ['DEBUSSY'] = '1'
                  os.environ['FSDB'] = '1'
                  
                  # Open child processes via os.system(), popen() or fork() and execv()
                  
                  someVariable = int(os.environ['DEBUSSY'])
                  

                  请参阅 os.environ<上的 Python 文档/代码>.此外,有关生成子进程的信息,请参阅 Python 的 子进程文档.

                  See the Python docs on os.environ. Also, for spawning child processes, see Python's subprocess docs.

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