On , I learnt ...

How to override Django’s settings for every method in a test class

Django’s override_settings decorator only works on functions and methods in subclasses of unittest.TestCase.

But it’s common to group tests in plain Python classes when using Pytest, which means override_settings can’t be used to decorate a class and override settings for every test method.

Instead, do this with an autouse=True fixture and the settings fixture provided by the pytest-django package.

For example:

import pytest
from django.conf import settings as django_settings

class TestAutouseFixture:
    def configure_settings(self, settings):
        # The `settings` argument is a fixture provided by pytest-django.
        settings.FOO = "bar"

    def test_one(self):
        assert django_settings.FOO == "bar"

    def test_two(self):
        assert django_settings.FOO == "bar"

🤦‍♂️ Oops — turns out I learnt this last year too, although my example then used override_settings as a context manager.