Hi, I’ve been migrating our monorepo to support Pants. Currently I am working on converting our existing

mypy

setup. Within the repo we have several venvs managed by poetry. If a package does not include stubs, we add it as a dev dependency, e.g.

[tool.poetry.dev-dependencies]
types-ujson = "^5.3.0"

in one of our venv’s

pyproject.toml

file. So far I have not been able to configure pants to pick up these stubs. Initially I thought I would be able to do so by including it in the

BUILD

like this:

poetry_requirements(
    ...
    type_stubs_module_mapping={
        "types-ujson": ["some_venv:poetry#ujson"]
    }
}

but this did not help, I get an error

foo/bar.py:5: error: Library stubs not installed for "ujson" (or incompatible with Python 3.9)
foo/bar.py:5: note: Hint: "python3 -m pip install types-ujson"

The only way I managed to remove the error is to add something like

["types-ujson==5.3.0"]

to

[mypy].extra_type_stubs

in

pants.toml

. I am not a fan of this approach, because now I have to keep track of this package’s version in both

pyproject.toml

and

pants.toml

. Is there a better way to do this? Thanks!