Python Pandas

[stepanjan]

Hi, thank you for this Dockerimage.
I have problems with Pandas and Numpy

its my requirements.pip
amqp==2.4.2
billiard==3.6.0.0
celery==4.3.0
Django==2.2.1
gunicorn==19.9.0
kombu==4.5.0
pytz==2019.1
redis==3.2.1
sqlparse==0.3.0
vine==1.3.0
pandas==0.25.1

ERROR:
.... in build_sources File "/tmp/easy_install-lcv5khez/numpy-1.17.3/numpy/distutils/command/build_src.py", line 286, in build_library_sources File "/tmp/easy_install-lcv5khez/numpy-1.17.3/numpy/distutils/command/build_src.py", line 369, in generate_sources File "numpy/core/setup.py", line 669, in get_mathlib_info "depends": tseries_depends, RuntimeError: Broken toolchain: cannot link a simple C program ---------------------------------------- ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output. ERROR: Service 'web' failed to build: The command '/bin/sh -c pip install -r requirements.pip' returned a non-zero code: 1
in next step i try it with apt packages:
Dockerfile
`FROM python:3.8.0-alpine3.10
ENV PYTHONUNBUFFERED 1
ENV C_FORCE_ROOT true
RUN mkdir /src
RUN mkdir /static
WORKDIR /src

install psycopg2

RUN apk update
&& apk add --virtual build-deps gcc python3-dev musl-dev
&& apk add postgresql-dev
&& pip install psycopg2
&& pip install numpy \ . ###NEW LINE
&& pip install pandas \ ### NEW LINE
&& apk del build-deps

ADD ./src /src
RUN pip install --upgrade pip
RUN pip install -r requirements.pip
CMD python manage.py collectstatic --no-input;python manage.py migrate; gunicorn mydjango.wsgi -b 0.0.0.0:8000 & celery worker --app=myapp.tasks
`

ERROR:
`
File "/tmp/pip-install-74d91rss/pandas/setup.py", line 409, in build_extensions
self.check_cython_extensions(self.extensions)
File "/tmp/pip-install-74d91rss/pandas/setup.py", line 399, in check_cython_extensions
raise Exception(
Exception: Cython-generated file 'pandas/_libs/algos.c' not found.
Cython is required to compile pandas from a development branch.
Please install Cython or download a release package of pandas.

----------------------------------------

ERROR: Command errored out with exit status 1: /usr/local/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-74d91rss/pandas/setup.py'"'"'; file='"'"'/tmp/pip-install-74d91rss/pandas/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' install --record /tmp/pip-record-1mjw0bgj/install-record.txt --single-version-externally-managed --compile Check the logs for full command output.
`
i hope, you can help me

[ruddra]

Although i initially thought to put every dependencies for Pandas in dockerfile, but I changed mind and only put the necessary dependencies for django. But I have added instructions on how to use pandas in the Dockerfile. Also I have created a gist https://gist.github.com/ruddra/870d7a51238ddfa4b50375086c12a4f5 which will work with Pandas. Please let me know if you face any issues. If not, then please close this issue. :)