Container runs Python 2.7 instead of Python 3.6

i have an app structured as follow:

app
    app
       main.py
    Dockerfile
    uwsgi.ini
docker-compose.yml

Dockerfile:

FROM tiangolo/uwsgi-nginx-flask:python3.6
RUN pip3 install gensim pymongo pandas numpy

docker-compose.yml:

version: '2'
services:
  s_a:
    build: ./app
    links:
      - s_db
    volumes:
      - ./app/app:/app
    ports:
      - "8080:80"
    
  s_db:
    image: mongo
    ports:
      - "27370:27017"
    volumes:
      - ./app/mongodb:/data/db

uwsgi.ini:

[uwsgi]
module = app.main
callable = app

master = true
processes = 10

when up docker-compose.yml i get the error:

I don’t know why the runs on Python 2.7 instead of Python 3.6. Where is the problem ?

[tiangolo]

I just tried replicating your environment. But I didn’t get your error. I got a different one.

I had to move the file uwsgi.ini from ./app/uwsgi.ini to ./app/app/uwsgi.ini because that’s the directory that you are mounting.

I had to change its contents to:

[uwsgi]
module = main
callable = app

master = true
processes = 10

And then it ran without problems.

---

Now some development suggestions:

• Don’t mount your code as a volume for production, only for development.
• So, your Dockerfile should have a COPY directive copying your code.
• For development, you can mount your code with a docker-compose.override.yml that doesn’t affect your final docker-compose.yml.

You can create a public repo with your actual code and the steps to replicate the issue, that way I can take a look.

You can use the example template project as a base or a guidance to compare with what you have and see what you have to change. It includes the docker-compose.yml files.

[tiangolo]

Does this issue related to the naming?

Actually, I don’t know, I don’t really know what was wrong and what was producing the error.

But I’m glad you solved it.

Should we close this issue?