[Python] "detail": "Method \"GET\" not allowed." Django Rest Framework

I know this question maybe a duplicate, but I have tried many solutions and could not understand any. I have followed this tutorial exactly and yet I get this error on the 'userlist' page. Everything else works just fine. Can somebody point out what the error is ?

class UserList(APIView):
"""
Create a new user. It's called 'UserList' because normally we'd have a get
method here too, for retrieving a list of all User objects.
"""

permission_classes = (permissions.AllowAny,)
http_method_names = ['get', 'head']

def post (self, request, format=None):
self.http_method_names.append("GET")

serializer = UserSerializerWithToken(data=request.data)
if serializer.is_valid():
serializer.save()
return Response(serializer.data, status=status.HTTP_201_CREATED)
return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)


EDIT: urls.py

from django.urls import include, path
from classroom.views.classroom import current_user, UserList
from .views import classroom, suppliers, teachers
urlpatterns = [path('', classroom.home, name='home'),
path('current_user/', current_user),
path('users/', UserList.as_view()),


Edit:

Still getting this error,



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