Docker and django No module named 'corsheaders'-CodePudding

Im trying to dockerize an existing django project.

I have corsheaders installed

and its included in my installed apps as follows:

INSTALLED_APPS = [
    'corsheaders',
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',

]

and in the middleware

MIDDLEWARE = [
    'corsheaders.middleware.CorsMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'corsheaders.middleware.CorsMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
    ]

after that i build my docker using

docker-compose --build

and then run it

docker-compose up

but always the same error

 ModuleNotFoundError: No module named 'corsheaders'

i have tried to delete corsheaders from my installed aps but then i get

 ModuleNotFoundError: No module named 'restframework'

ps: if i run the server through py manage.py runserver it works perfectly.

Dockerfile

# syntax=docker/dockerfile:1
FROM python:3
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1
WORKDIR /code
COPY requirements.txt /code/
RUN pip install -r requirements.txt
COPY . /code/

Requirements.txt

Django>=4.0
psycopg2>=2.8
django-cors-headers==3.10.1
djangorestframework==3.13.1
pandas

CodePudding user response：

you need to add restframework and pass the cors at the end

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'rest_framework',
    'rest_framework.authtoken',
    'corsheaders',

]


FROM python:3

ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1

RUN apt-get update
RUN apt-get install -y libpq-dev python3-dev

# install dependencies
COPY requirements.txt /code/
RUN pip install --upgrade pip
RUN pip install -r requirements.txt

RUN mkdir /code
WORKDIR /code

CodePudding user response：

I solved it by realizing the when i install the package through :

pip install django-cors-headers

its not getting installed in the venv of the project itself. or through:

py -m pip install django-cors-headers

So i copied it to the venv and it worked.