如何使用 Python 将项目添加到 PATH 用户环境变量

Question

I'm working on some software written in Python 3.10 and it needs to be added to PATH in the User's Environment Variables and in the future it might have to add other things to it as well.

I want the software to do it on it's own so that the User (who might not already know how to do it) doesn't have to do it themselves.

I know its possible because there are some installers that I've used to download apps that have an 'Add bin to PATH' button that you can check and it does it on its own.

How would I implement this using Python?

Answer 1

If you're referring to User Environment that doesn't persist beyond current script session, you can use os.environ() . For example:

import os

mypath = os.environ['PATH'].split(os.pathsep)
mypath = {*mypath, '/new/path1', '/new/path2'}
# you can remove some dirs from mypath too

os.environ['PATH'] = os.pathsep.join(mypath)