I am trying to create a docker container to always run mypy in the same environment. The library I want to run mypy on has multiple dependencies, so I have to install those first and have access to them as I am evaluating the library that was passed. This is what it currently looks like, in this example I am only installing scipy as an external dependency, later I would install a regular requirements.txt file instead:
FROM ubuntu:22.04 as builder
RUN apt-get update && apt-get install -y \
bc \
gcc \
musl-dev \
python3-pip \
python3 \
python3-dev
RUN python3.10 -m pip install --no-cache-dir --no-compile scipy && \
python3.10 -m pip install --no-cache-dir --no-compile mypy
FROM ubuntu:22.04 as production
RUN apt-get update && apt-get install -y \
python3 \
COPY --from=builder /usr/local/lib/python3.10/dist-packages /usr/local/lib/python3.10/dist-packages
COPY --from=builder /usr/local/bin/mypy /usr/local/bin/mypy
WORKDIR /data
ENTRYPOINT ["python3.10", "-m", "mypy"]
I install and run my container with
docker build -t my-package-mypy . && docker run -v $(pwd):/data my-package-mypy main.py
Where main.py is a simple one line script that only imports scipy.
This returns the following output:
main.py:1: error: Cannot find implementation or library stub for module named "scipy" [import]
main.py:1: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports
Traceback (most recent call last):
File "/usr/lib/python3.10/runpy.py", line 196, in _run_module_as_main
return _run_code(code, main_globals, None,
File "/usr/lib/python3.10/runpy.py", line 86, in _run_code
exec(code, run_globals)
File "/usr/local/lib/python3.10/dist-packages/mypy/__main__.py", line 37, in <module>
console_entry()
File "/usr/local/lib/python3.10/dist-packages/mypy/__main__.py", line 15, in console_entry
main()
File "mypy/main.py", line 95, in main
File "mypy/main.py", line 174, in run_build
File "mypy/build.py", line 193, in build
File "mypy/build.py", line 302, in _build
File "mypy/build.py", line 3579, in record_missing_stub_packages
PermissionError: [Errno 13] Permission denied: '.mypy_cache/missing_stubs'
Where most importantly, the first line says that it cannot find the installation for scipy even though it was installed alongside mypy. How can I adjust my dockerfile to get it to work as described?
