在python中取消设置Linux环境变量的正确方法是什么? [英] What is the correct way to unset a linux environment variable in python?

问题描述

从文档中:

如果平台支持unsetenv()功能，则可以删除此映射中的项目以取消设置环境变量.从os.environ中删除项目时，以及调用pop()或clear()方法之一时，将自动调用unsetenv().

If the platform supports the unsetenv() function, you can delete items in this mapping to unset environment variables. unsetenv() will be called automatically when an item is deleted from os.environ, and when one of the pop() or clear() methods is called.

但是，无论unsetenv()是否可用，我都希望它能够工作.如果不可用，如何从映射中删除项目? os.environ['MYVAR'] = None?

However I want something that will work regardless of the availability of unsetenv(). How do I delete items from the mapping if it's not available? os.environ['MYVAR'] = None?

推荐答案

只是

del os.environ['MYVAR']

应该工作.

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