To permanently add a directory to PYTHONPATH

Different operating systems work differently. As far as I know,

Add the following to ~/.bashrc

export PYTHONPATH="${PYTHONPATH}:/my/other/path"

If this doesn't work, you have to use a method to create a path configuration file.

python -m site --user-site
#2.7 Use the bottom one
python -c 'import site; site._script()' --user-site

on the path from here.Create a pth file, and this .In the pth file, write down the directory you want to add as path.

Go to the folder where you installed python and open Lib/site-packages.

An empty file in this folder.Create a pth and write down the path you want to add.