Hi folks 👋 I've been troubleshooting a Pants issue for a few hours and could use some help. I suspect I'm making a simple configuration mistake. My project structure:

services/service1
├── BUILD
├── lib
│   ├── BUILD
│   ├── foo.py
│   └── shared
│       ├── file1.py
│       ├── file2.py
└── src
     └── lambda1
            ├── BUILD
            └── main.py

lambda1/BUILD

python_sources(
    name="lib",
    sources=["**/*.py"],
)

python_aws_lambda_function(
    name="lambda",
    runtime="python3.12",
    handler="main:handler",
    dependencies=[
        ":lib",
        "services/doc_gen/lib:lib",
    ],
)

lib/BUILD

python_sources(name="lib", sources=["**/*.py"])

The Issue When I build the lambda, the directory structure inside the

shared

folder is flattened. Both

foo.py

and

file1.py

end up in the root of the lambda zip, losing the

shared/

directory structure. Interestingly, if I add additional subdirectories within

shared/

, those subdirectories are preserved correctly. My Configuration My

pants.toml

has:

[source]
root_patterns = [
  "services/service1/src/**",
  "services/service1/lib",
]

I'm wondering if there's something I'm missing about how Pants packages Python code when building lambdas. Thanks in advance for any pointers!

Ah, great, was going to suggest looking at source roots 🙂