Hi, what’s the way to do module mapping for modules which are added under

extra_requirements

. My exact case is with mypy. I added some stub for boto3 called

boto3-stubs

but the package itself is

mypy_boto3_batch

when I need to use the import. e.g.

from mypy_boto3_batch.client import BatchClient

Hence pants is generating warnings about not being able to infer the owner of such import. This is the relevant section of

pants.toml

[mypy]
version = "mypy>=0.971"
extra_requirements.add = [
  "pydantic>=1.9.1",
  "pandas-stubs>=1.4.4.220919",
  "types-requests>=2.28.11",
  "boto3-stubs[s3,batch]>=1.24"
]
extra_type_stubs = ["pandas-stubs>=1.4.4.220919", "types-requests>=2.28.11", "boto3-stubs[s3,batch]>=1.24"]
lockfile = "build-support/mypy.lock"

I think this is https://github.com/pantsbuild/pants/issues/16882

Ah ok. Then either I define it as normal python_requirement or ignore the warning explicitly using

# pants: no-infer-dep

as you’ve mentioned in the ticket.

Probably add all the mappings for all the extras you might care about? If you’re not importing from them, there’s no harm in listing them

@refined-addition-53644 I had a similar use case recently and I simply listed the package I needed:

python_requirement(
    name = "mypy-boto3-dynamodb",
    requirements = ["mypy-boto3-dynamodb"],
    type_stub_modules = ["boto3"],
)

So I had no issue when importing it.