Trying to debug an error from `pants dependents` thread Pants #general

Trying to debug an error from `pants dependents` :...

fierce-fall-70380

01/29/2025, 6:31 PM

Trying to debug an error from

pants dependents

🧵

fierce-fall-70380

01/29/2025, 6:33 PM

Error:

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pants.core.util_rules.unowned_dependency_behavior.UnownedDependencyError: Pants cannot infer owners for the following imports in the target ...:

  * pydantic.v1.ValidationError (line: 28)

In my

third-party/_pants/BUILD

file I have:

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python_requirement(
    name="pydantic",
    requirements=["pydantic==2.4.2"]
)

And I have a wheel for it:

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ACAM-M-RWLH: acam$ ls third-party/_pants/wheels/pydantic*
third-party/_pants/wheels/pydantic-2.4.2-py3-none-any.whl
third-party/_pants/wheels/pydantic_core-2.10.1-cp311-cp311-macosx_11_0_arm64.whl
ACAM-M-RWLH: acam$

Note: This is the folder my pants config points to:

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[python-repos]
find_links = [
    "file:///%(buildroot)s/third-party/_pants/wheels"
]
indexes = []

fierce-fall-70380

01/29/2025, 6:33 PM

Does the

dependents

goal use a sandbox? I haven't been able to get

--keep-sandboxes

to work to debug this (it doesn't even print or log the name of the folder it's using).

fierce-fall-70380

01/29/2025, 6:53 PM

Note: I'm not using any lockfiles yet.

fierce-fall-70380

01/29/2025, 6:57 PM

Fixed the error (an earlier warning in the output tipped me off to an ambiguous owner issue). But still curious re: sandbox question above. 🙂

careful-address-89803

01/29/2025, 10:30 PM

Dependency inference for python is now done partially in rust (the parsing and identification of imports) and in the Pants process itself. there's an advanced goal python-dump-source-analysis, which can give you a window into the stages of the dep inference process for python. But I think all that's going to do is confirm that the problem is that Pants doesn't see something that provides the module

pydantic

. My first guess would be that Pants doesn't know that something provides pydantic. Do you have a

python_requirement

target that provides

pydantic

? (try with

pants list :: | grep pydantic

)

👍 1

fierce-fall-70380

01/31/2025, 8:10 PM

So I had a requirements.txt hiding in another part of the tree that caused a conflict. Once I took care of that, all is working. Thanks for the tip re: the new python-dump-source-analysis feature!

👍 1

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