All: Apply Black coding rules

core/middleware.py

@@ -26,14 +26,16 @@ import importlib
 from django.conf import settings
 from django.utils.functional import SimpleLazyObject
 from django.contrib.auth import get_user
-from django.contrib.auth.middleware import AuthenticationMiddleware as DjangoAuthenticationMiddleware
+from django.contrib.auth.middleware import (
+    AuthenticationMiddleware as DjangoAuthenticationMiddleware,
+)
 
-module, klass = settings.AUTH_ANONYMOUS_MODEL.rsplit('.', 1)
+module, klass = settings.AUTH_ANONYMOUS_MODEL.rsplit(".", 1)
 AnonymousUser = getattr(importlib.import_module(module), klass)
 
 
 def get_cached_user(request):
-    if not hasattr(request, '_cached_user'):
+    if not hasattr(request, "_cached_user"):
         user = get_user(request)
         if user.is_anonymous():
             user = AnonymousUser(request)
@@ -45,7 +47,7 @@ def get_cached_user(request):
 
 class AuthenticationMiddleware(DjangoAuthenticationMiddleware):
     def process_request(self, request):
-        assert hasattr(request, 'session'), (
+        assert hasattr(request, "session"), (
             "The Django authentication middleware requires session middleware "
             "to be installed. Edit your MIDDLEWARE_CLASSES setting to insert "
             "'django.contrib.sessions.middleware.SessionMiddleware' before "