Python Docker container, Module not found

Question

I have the following Project structure

twoFlasks/
├── app.py
├── common/
│   ├── file1.py        
│   ├── file2.py       
│   └── file3.py    
├── Dockerfile
├── requirements.txt       
├── bot1/   
│   │        
│   ├── routes/
│   │   └── bot1_routes.py
└── bot2/
    └── routes/
        └── bot2_routes.py

And the following Dockerfile:

FROM python:3.8

WORKDIR /project

COPY requirements.txt .
COPY app.py .

RUN pip3 install -r requirements.txt

COPY bot1/ .
COPY bot2/ .
COPY common/ .

EXPOSE 5000 3000

CMD ["python", "./app.py"]

The image is built successfully, but when I got to run a container I get the following error message in the logs from my app.py file

Traceback (most recent call last):
  File "./app.py", line 9, in <module>
    from bot2.routes import bot2_routes
ModuleNotFoundError: No module named 'bot2'

It works locally, but not in the Docker container, and I'm kind of at a loss here. If anyone knows what might be the problem, I'd appreciate the help!

Kinnturo · Accepted Answer · 2020-09-10 12:09:57Z

1

So, what fixed my issue was a change in the Dockerfile.

COPY bot1/ ./bot1
COPY bot2/ .bot2
COPY common/ ./common

Instead of just copying the folders to .

answered Sep 10, 2020 at 12:09

Kinnturo

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Comments

Aziz Sonawalla · Accepted Answer · 2020-09-08 15:03:50Z

0

If you're using Python <3.3 then you need an __init__.py file in your package root directories to help Python build the namespace: Python - Module Not Found

answered Sep 8, 2020 at 15:03

Aziz Sonawalla

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2 Comments

Kinnturo Over a year ago

I'm using Python 3.8, if I'm correctly aware of, I don't need the __init__.py files then, right?

Kinnturo Over a year ago

And if I were to add the init file, would it be at bot2/ or at bot2/routes/ ?

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