CODEWITHSUNDEEP
pythonpython-3.xdockerdockerfile
Rayane Bouslimi
Rayane Bouslimi

Reputation: 193

"ModuleNotFoundError: No module named <package>" in my Docker container

I'm trying to run a python script in a Docker container, and i don't know why, python can't find any of the python's module. I thaught it has something to do with the PYTHONPATH env variable, so i tried to add it in the Dockerfile like this : ENV PYTHONPATH $PYTHONPATH

But it didn't work. this is what my Dockerfile looks like:

FROM ubuntu:16.04
MAINTAINER SaveMe [email protected]

ADD . /app
WORKDIR /app

RUN apt-get update

RUN DEBIAN_FRONTEND=noninteractive apt-get install -y locales

# Set the locale
RUN sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' 
/etc/locale.gen && \
    locale-gen
ENV LANG en_US.UTF-8
ENV LANGUAGE en_US:en
ENV LC_ALL en_US.UTF-8
ENV PYTHONPATH ./app

#Install dependencies
RUN echo "===> Installing sudo to emulate normal OS behavior..."
RUN apt-get install -y software-properties-common
RUN apt-add-repository universe
RUN add-apt-repository ppa:jonathonf/python-3.6
RUN (apt-get update && apt-get upgrade -y -q && apt-get dist-upgrade -
y -q && apt-get -y -q autoclean && apt-get -y -q autoremove)
RUN apt-get install -y libxml2-dev libxslt-dev
RUN apt-get install -y python3.6 python3.6-dev python3.6-venv openssl 
ca-certificates python3-pip
RUN apt-get install -y  python3-dev python-dev libffi-dev gfortran
RUN apt-get install -y swig
RUN apt-get install -y sshpass openssh-client rsync python-pip python-
dev libffi-dev libssl-dev libxml2-dev libxslt1-dev libjpeg8-dev 
zlib1g-dev libpulse-dev
RUN pip install --upgrade pip
RUN pip install bugsnag

#Install python package + requirements.txt
RUN  pip3 install  -r requirements.txt


CMD ["python3.6", "import_emails.py"]

when i'm trying to run: sudo docker run <my_container> i got this Traceback:

Traceback (most recent call last):
  File "import_emails.py", line 9, in <module>
    import bugsnag
ModuleNotFoundError: No module named 'bugsnag'

As you can see i'm using python3.6 for this project. Any lead on how to solve this ?

Upvotes: 9

Views: 43758

Answers (2)

manickam
manickam

Reputation: 21

since you're using py3, try using pip3 to install bugsnag instead of pip

Upvotes: 1

bluescores
bluescores

Reputation: 4677

Inside the container, when I pip install bugsnag, I get the following:

root@af08af24a458:/app# pip install bugsnag
Requirement already satisfied: bugsnag in /usr/local/lib/python2.7/dist-packages
Requirement already satisfied: webob in /usr/local/lib/python2.7/dist-packages (from bugsnag)
Requirement already satisfied: six<2,>=1.9 in /usr/local/lib/python2.7/dist-packages (from bugsnag)

You probably see the problem here. You're installing the package for python2.7, which is the OS default, instead of python3.6, which is what you're trying to use.

Check out this answer for help resolving this issue: "ModuleNotFoundError: No module named <package>" in my Docker container

Alternatively, this is a problem virtualenv and similar tools are meant to solve, you could look into that as well.

Upvotes: 6

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