Mypy complains about missing type parameters for ModelViewSet

[OvervCW]

Bug report

What's wrong

I'm following along with the quickstart guide for the Django REST framework and I have the following snippet of code:

from django.contrib.auth.models import Group, User
from rest_framework import permissions, viewsets

from xxx.schemas.serializers import GroupSerializer, UserSerializer


class UserViewSet(viewsets.ModelViewSet):
    """
    API endpoint that allows users to be viewed or edited.
    """

    queryset = User.objects.all().order_by("-date_joined")
    serializer_class = UserSerializer
    permission_classes = [permissions.IsAuthenticated]

When I run mypy --strict . it complains:

src/xxx/schemas/views.py:7: error: Missing type parameters for generic type "ModelViewSet"  [type-arg]

If I change the line to

class UserViewSet(viewsets.ModelViewSet[User]):

then mypy is happy, but I am no longer able to run my application:

TypeError: type 'ModelViewSet' is not subscriptable

How is that should be

How do I write my code such that both mypy and Python are happy?

System information

• OS:
• python version: Ubuntu 22.0.4.2 LTS
• django version: 4.1.7
• mypy version: 1.0.1
• django-stubs version: 1.15.0
• djangorestframework-stubs version: 1.9.1

[OvervCW]

Nevermind, duplicate of #255

I solved my problem by doing this in settings.py:

import django_stubs_ext
from rest_framework import viewsets

django_stubs_ext.monkeypatch(extra_classes=(viewsets.ModelViewSet,))