How should I go about getting

./pants test

to include doctests? I added

python_tests(
    name="tests",
    sources=["*.py"],
)

as a target in my directory and ran

./pants test foobar/:: -- --doctest-modules

but it fails on a bunch of files without tests

In case you haven't seen it, https://github.com/pantsbuild/pants/issues/11227 seems to have various discussions. Potentially you could have

sources

be an allowlist of only the files that have doctests (

sources=["has_doctests.py", "also_has.py"]

), or use

!

to exclude ones that don't, as a denylist, (

sources=["*.py", "!no_doctests.py"]

)