Thank you very much @mtelka. Let's think about this a bit better. Removing src from paths mean that the doctests will no longer run, right?

It wasn't there before, though?

How are we running doctests? Pytest doesn't just natively run them. Adding src would mean there are test_* functions in the source.

The doctest is run via separate pytest invocation.

Ahh, the src there overrides whatever is in here anyway.

The doctest is run via separate pytest invocation.

We might be running twice then, as we do pass --doctest-modules in the pyproject.toml.

I am OK with this approach (thank you very much for investigating!), but it would be nice to understand why that configuration seemly disconnected is causing the problem.

Are we sure that we are not simply removing a side-effect instead of finding the root cause?

We might be running twice then, as we do pass --doctest-modules in the pyproject.toml.

If I remember it well, the point of passing src as a test path and adding --doctest-modules in pyproject.toml was to not have to run a separated process for pytest. I probably forgot to change tox.ini 😅

Closing in favor of #203.