Cannot build docker image: ImportError: Couldn't import Django

[pattyland]

Describe the bug
Building the docker image I get the error ImportError: Couldn't import Django at the last step. Stracktrace is attached

To Reproduce
Steps to reproduce the behavior:

1. Follow the steps on https://pytition.readthedocs.io/en/latest/installation.html#installation-via-docker-recommended-for-development
2. use the docker compose up --build command
3. See error

Expected behavior
Successful build of Docker Image

Screenshots

✔ Container pytition-smtp-1  Created                                                                                                                                                                                        0.0s 
 ✔ Container pytition-db-1    Created                                                                                                                                                                                        0.0s 
 ✔ Container pytition-web-1   Recreated                                                                                                                                                                                      0.3s 
Attaching to db-1, smtp-1, web-1
db-1    | 
db-1    | PostgreSQL Database directory appears to contain a database; Skipping initialization
db-1    | 
db-1    | 2024-12-10 13:30:25.438 UTC [1] LOG:  starting PostgreSQL 17.2 (Debian 17.2-1.pgdg120+1) on x86_64-pc-linux-gnu, compiled by gcc (Debian 12.2.0-14) 12.2.0, 64-bit
db-1    | 2024-12-10 13:30:25.439 UTC [1] LOG:  listening on IPv4 address "0.0.0.0", port 5432
db-1    | 2024-12-10 13:30:25.439 UTC [1] LOG:  listening on IPv6 address "::", port 5432
db-1    | 2024-12-10 13:30:25.456 UTC [1] LOG:  listening on Unix socket "/var/run/postgresql/.s.PGSQL.5432"
db-1    | 2024-12-10 13:30:25.481 UTC [27] LOG:  database system was shut down at 2024-12-10 13:29:58 UTC
db-1    | 2024-12-10 13:30:25.501 UTC [1] LOG:  database system is ready to accept connections
smtp-1  | MailDev webapp running at http://0.0.0.0:8080
smtp-1  | MailDev SMTP Server running at 0.0.0.0:2525
web-1   | Traceback (most recent call last):
web-1   |   File "pytition/manage.py", line 8, in <module>
web-1   |     from django.core.management import execute_from_command_line
web-1   | ModuleNotFoundError: No module named 'django'
web-1   | 
web-1   | During handling of the above exception, another exception occurred:
web-1   | 
web-1   | Traceback (most recent call last):
web-1   |   File "pytition/manage.py", line 14, in <module>
web-1   |     import django
web-1   | ModuleNotFoundError: No module named 'django'
web-1   | 
web-1   | During handling of the above exception, another exception occurred:
web-1   | 
web-1   | Traceback (most recent call last):
web-1   |   File "pytition/manage.py", line 16, in <module>
web-1   |     raise ImportError(
web-1   | ImportError: Couldn't import Django. Are you sure it's installed and available on your PYTHONPATH environment variable? Did you forget to activate a virtual environment?
web-1 exited with code 1

Desktop (please complete the following information):

• OS: AlmaLinux release 8.10 (Cerulean Leopard)
• Browser -
• Version -

Additional context
Would be really nice to prevent possible problems like this by resolving #168