Qtile in venv? Installing libs for qtile

I'm new to qutile. I used to configure qtile in a single config.py file, but now I would like to build a more advanced config using other libraries like screeninfo.

How can I install libraries? I'm used to make venv's and add the packages there. Is it possible to have qtile and all qtile related libs in a venv to keep things clean? Is this a good practice?

I tried to install the pip package, but I get the error message: error: externally-managed-environment

I use Arch btw.