use gunicorn，can't get data from settings.py

[wac81]

set up：
ACCOUNT_EMAIL_VERIFICATION=mandatory

使用entrypoint.sh启动（gunicorn ）

python manage.py migrate

python manage.py createsuperuser --no-input

export WORKERS=${SERVER_WORKERS:-3}

export TIMEOUT=${WORKER_TIMEOUT:-180}

exec gunicorn chatgpt_ui_server.wsgi --workers=$WORKERS --timeout $TIMEOUT --bind 0.0.0.0:8000 --access-logfile -

print：
EMAIL_VERIFICATION: optional

if use python3 manger.py runserver to run, then
EMAIL_VERIFICATION: mandatory

[wac81]

what did i missed ??