I’m creating an installer for one of my projects, that download the binaries of the project (in a ZIP file) and then unzip it into a directory in the programs folder of the OS, and I want to add this directory to the PATH.

I tried this:

import os

os.environ['PATH'] += os.pathsep + install_dir # `install_dir` is the installation directory

But it’s not permanent and don’t stay at the end of the script.

Thanks for any answer.