[Python] How to add Alpine scikit-learn to poetry environment on Alpine Docker container?

I have to use an python alpine docker image for my python project. I use poetry for dependency management, and I need to add the scikit-learn package.

The scikit-learn within poetry is not working on alpine linux images, so I figured out I have to use the official alpine sklearn package: py3-scikit-learn . The install goes through successfully thanks to https://stackoverflow.com/a/76184400/18975804

But I'm using poetry for the other packages, and when runnig the scripts with poetry, the sklearn package is not recognized: ModuleNotFoundError: No module named 'sklearn'

All of the other modules are recognized. How can I get the alpine-sklearn recognized in the poetry environment?

FYI: IT'S NOT AN OPTION TO USE OTHER LINUX DISTRIBUTION in the DOCKER container.

Dockerfile:

FROM python:3.13.2-alpine3.21
RUN apk --update add gcc build-base freetype-dev libpng-dev openblas-dev py3-scikit-learn
RUN pip install --upgrade pip
RUN pip install poetry==2.1.1

ENV POETRY_NO_INTERACTION=1 \
POETRY_VIRTUALENVS_IN_PROJECT=1 \
POETRY_VIRTUALENVS_CREATE=1 \
POETRY_CACHE_DIR=/tmp/poetry_cache

WORKDIR /app

COPY pyproject.toml poetry.lock ./

RUN poetry install --without dev --no-root && rm -rf $POETRY_CACHE_DIR

COPY app ./app

WORKDIR ./app

ENTRYPOINT ["poetry", "run", "python", "main.py"]


And I use import sklearn in my main.py python script.

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