CODEWITHSUNDEEP
pythondockersetuptoolsalpine-linuxpython-packaging
Dhia
Dhia

Reputation: 10609

python setup.py install doesn't work properly on alpine image

I have the following dockerfile:

FROM python:alpine3.6

ENV PORT 5000
ENV APP  /usr/src
ENV FLASK_APP pkg_name/app.py

RUN apk update
RUN apk upgrade
RUN apk add build-base postgresql-dev git gcc
RUN apk add musl-dev python3-dev libffi-dev

ADD . /
RUN python setup.py install
# RUN pip install .

EXPOSE $PORT

CMD flask run

the configuration above work perfectly in standard python image but not in alpine image. Both python setup.py install or pip install . will install the package correctly but when I run flask run it complain that the installed module is not found:

 Traceback (most recent call last):
 File "pkg_name/app.py", line 6, in <module>
     from pkg_name.api import api 
 ModuleNotFoundError: No module named 'pkg_name'

Running pip freeze shows that the project in the list of installed packages. Trying to import the project in the python interpreter >>> import pkg_name works also fine, which is weird.

Question:

Does any one has an explanation why the pkg could not be imported on run time despite it's installed and imported correctly in the interpeter. How can I fix it.

Upvotes: 4

Views: 3013

Answers (1)

Dhia
Dhia

Reputation: 10609

A solution that worked for me was setting the PYTHONPATH variable. 

PYTHONPATH=${PYTHONPATH}:/usr/local/lib/python3.6/site-packages

Still feel is just a dirty workaround, because the site-packages path is in the sys.path and the packages are correctly installed there, but for now it solved the issue.

Upvotes: 2

Related Questions