I'm having trouble with first-party imports. My project layout is

.
├── auth
│   ├── __init__.py
│   └── flask_auth.py
└── events_service
    ├── __init__.py
    └── app.py

The error is:

Pants cannot infer owners for the following imports in the target event_service/app.py:

  * auth.token_auth (line: 4)

This package from

auth/__init__.py

:

from .flask_auth import token_auth

It looks like packages defined in ``__init__.py`` files is not detected.

sorry for the trouble. What's your source root configuration in

pants.toml

?

> pants roots
auth
event_service

./pants.toml

[source]
root_patterns = [
  "/auth",
  "/event_service",
]

Ah, hm, I suspect your source-roots aren't communicating what you hope to pants. A source root defines a directory that holds packages, not the packages themselves. For instance, with your current roots, pants will understand

import flask_auth

as referring to

flask_auth.py

, because it's an immediate child of a source root. It looks like it should be

from auth import flask_token

, i.e. "auth" is the package name. Thus, I think a

root_pattern = ["/"]

might be what you need.

Ah I see. Yep that's probably it. I do need to restructure the folders a bit - they were all separate git projects before.