Mark view with @login_not_required

[adamchainz]

Fixes #281.

Tested with this patch to the example project:

diff --git example/example/settings.py example/example/settings.py
index 14ce460..b6f7542 100644
--- example/example/settings.py
+++ example/example/settings.py
@@ -23,16 +23,24 @@
     # Third Party
     "django_browser_reload",
     # Contrib
+    "django.contrib.auth",
+    "django.contrib.contenttypes",
+    "django.contrib.sessions",
     "django.contrib.staticfiles",
 ]
 if asgi:
     INSTALLED_APPS.insert(1, "daphne")

 MIDDLEWARE = [
     "django.middleware.gzip.GZipMiddleware",
+    "django.contrib.sessions.middleware.SessionMiddleware",
+    "django.contrib.auth.middleware.AuthenticationMiddleware",
+    "django.contrib.auth.middleware.LoginRequiredMiddleware",
     "django_browser_reload.middleware.BrowserReloadMiddleware",
 ]

+SESSION_ENGINE = "django.contrib.sessions.backends.signed_cookies"
+
 ROOT_URLCONF = "example.urls"

 SECRET_KEY = "django-insecure-WCglZv2CA4v59K24bXfADwNDXc3HlwDY"
diff --git example/example/views.py example/example/views.py
index 585afec..3772a81 100644
--- example/example/views.py
+++ example/example/views.py
@@ -5,8 +5,11 @@
 from django.shortcuts import render
 from django.views.decorators.http import require_GET

+from django.contrib.auth.decorators import login_not_required
+

 @require_GET
+@login_not_required
 def index_django(request: HttpRequest) -> HttpResponse:
     return render(
         request,
@@ -18,6 +21,7 @@ def index_django(request: HttpRequest) -> HttpResponse:

 @require_GET
+@login_not_required
 def index_jinja(request: HttpRequest) -> HttpResponse:
     return render(
         request,
@@ -30,6 +34,7 @@ def index_jinja(request: HttpRequest) -> HttpResponse:

 @require_GET
+@login_not_required
 def favicon(request: HttpRequest) -> HttpResponse:
     return HttpResponse(
         (

But I don’t think it’s worth merging and maintaining all those extra dependencies, in the example project or tests.