Created following the tutorial at https://www.django-rest-framework.org/tutorial/quickstart/

to troubleshoot the bug tfranzel/drf-spectacular#422

setting up the virtualenv

python3 -m venv env
source env/bin/activate  # On Windows use `env\Scripts\activate`
pip install -r requirements.txt

reproducing

If you deploy with python manage.py runserver, you can test by running

curl -H 'Accept: application/json; indent=4' -u admin:password http://127.0.0.1:8000/users/