SAM Does not build the application, returns "PythonPipBuilder:ResolveDependencies failed about aws-sam-cli HOT 4 OPEN

Hi @Hanna-Hinn-imVitro, can you provide a minimal sample application for us to reproduce the issue?

from aws-sam-cli.

Hey, here's the minimal sample application :
Here's the project structure

|── helpers
|  ├── adapters
|  |  ├── adapters
|  |  ├── adapters.egg-info
|  |  ├── setup.py
|  |  |
|── domain
|  ├── bin
|  ├── tests
|  ├── src
|  |  ├── functions
|  |   ├── function1
|  |   | ├── __init__.py
|  |   | ├── handler.py
|  |   | ├── requirements.txt
|  |   ├── __init__.py
|  |  ├── __init__.py
|  |
|  ├── tests
|  ├── template.yaml
|  ├── ... other files

example on the requirements:

-e ../helpers/adapters
dataclasses-json==0.5.2
pycryptodome==3.16.0

Here's the overall requirements.txt for the whole project:

dataclasses-json==0.5.2
pytest==6.1.2
-e helpers/adapters
numpy==1.20.1
boto3==1.16.25
moto==1.3.16
dynamodb-encryption-sdk==1.2.0
pytest-mock==3.5.1
requests-mock==1.8.0
python_dynamodb_lock==0.9.1
pandas==1.3.4
opencv-python-headless==4.5.5.62
pillow==9.0.1
pycryptodome==3.16.0
aiohttp==3.8.1
aiohttp-retry==2.5.2
requests==2.25.1
aws-lambda-powertools[all]==2.8.0
pytest-cov==4.0.0
pydantic==1.10.13
asynctest==0.13.0
pytest-asyncio==0.20

The project is a bit old. I have a theory regarding some dependency version between 2 libraries but I can not figure it out :(. tbh I do not know how exactly can I help you reproduce the issue.

from aws-sam-cli.

Hi @Hanna-Hinn, I did some more digging and this is what I found.

1. For the local dependencies, make sure that the library is being passed into the CodeURI. SAM CLI will move the CodeURI into a temporary scratch directory to build, and if the local dependency is outside of that, relative paths outside of the CodeURI won't be found. You can see an example of local dependencies being used in the Lambda Builders integration tests.
2. For the rest of the dependencies, there was a bug fixed in version 1.95.0 of SAM CLI that should address the issue you're having, try updating to the latest version and seeing if that helps. However, there does seem to be an issue with one of the dependencies of dataclasses-json, depending on the version of pip you are using. stringcase==1.2.0 uses a deprecated pip feature which prevents Lambda Builders from building a wheel. There isn't much we can do for it since it doesn't contain any wheels we can use and we can't change the pip behaviour.

Let us know if this helps.

from aws-sam-cli.

Okay thank you so much 🙏

from aws-sam-cli.