[Slackbuilds-users] Package a pip only module

[Tonus]

Hi everybody, 

I'm looking on a satisfying process to package pytest-asyncio (https://github.com/pytest-dev/pytest-asyncio).
I'm a bit stuck since there's no setup.py I'm used to in the sources. 
Could someone kindly point me in some direction ? Even a SlackBuild achieving similar task ? 

Many thanks 

Regards 

Tonus