Pants dependency inference is unsuccessful for importing obj Pants #general

Pants’ dependency inference is unsuccessful for im...

hundreds-carpet-28072

08/29/2024, 4:15 PM

Pants’ dependency inference is unsuccessful for importing objects from

_init_.py

files. I have a file structure like:

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proj
-- src
  -- main.py
-- __init.py

Files containing:

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# __init__.py
import logging
logger = logging.getLogger(__name__)

# src/main.py
from proj import logger

I have set

[python-infer].init_files = always

but that doesn’t seem to make a difference here. Am I missing something?

hundreds-carpet-28072

08/29/2024, 4:26 PM

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[python-infer]
ambiguity_resolution = "by_source_root"

^ doesn’t seem to help either, which I would’ve assumed would

better-van-82973

08/29/2024, 4:37 PM

What are your source roots set to? Ex: what comes up when you run

pants roots

hundreds-carpet-28072

08/29/2024, 4:42 PM

proj

is in source roots in this scenario. I did get to the bottom of the problem though.

proj/__init__.py

wasn’t owned so when the

from proj import logger

symbol was being resolved this implied no ownership for that also.

hundreds-carpet-28072

08/29/2024, 4:44 PM

There’s an opportunity for a more informative error message here since

[WARN] Pants cannot infer owners for the following imports in the target …

is very general. If the consumer is owned by something but its local dependency is not then it would be more helpful to point to

proj/__init__.py

not being owned rather than an ambiguity problem

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