How to use exponent server sdk for a Django app

From the docs, I did pip3 install exponent_server_sdk but I get this error

ModuleNotFoundError: No module named 'exponent_server_sdk'

Also, I installed it in my venv as well as on my machine, added it to requirements.txt, restarted the code editor but no results. tried to run it from the terminal with both python3 and python3 shell but none worked

I think there are extra configurations to make it work in a Django app, but from the docs, the only thing I see is pip install, I use Django 3.1 python3.8.

any help?