from django.urls import include, path
from django.views import View


def view1(request):
    pass


def view2(request):
    pass


class View3(View):
    pass


nested = ([
    path('view1/', view1, name='view1'),
    path('view3/', View3.as_view(), name='view3'),
], 'backend')

urlpatterns = [
    path('some/path/', include(nested, namespace='nested')),
    path('view2/', view2, name='view2'),
]