Per Andrés comment:
I would move the main code files into a sub directory. This both facilitates imports and makes the repo clearer to navigate. You would then also set that folder name in setup.cfg cover-package.
Per Andrés comment:
I would move the main code files into a sub directory. This both facilitates imports and makes the repo clearer to navigate. You would then also set that folder name in setup.cfg cover-package.