Refs #32508 -- Raised ImproperlyConfigured instead of using "assert" in middlewares.

django/contrib/admindocs/middleware.py

@@ -1,4 +1,5 @@
 from django.conf import settings
+from django.core.exceptions import ImproperlyConfigured
 from django.http import HttpResponse
 from django.utils.deprecation import MiddlewareMixin
 
@@ -16,11 +17,12 @@ class XViewMiddleware(MiddlewareMixin):
         header indicating the view function. This is used to lookup the view
         function for an arbitrary page.
         """
-        assert hasattr(request, 'user'), (
-            "The XView middleware requires authentication middleware to be "
-            "installed. Edit your MIDDLEWARE setting to insert "
-            "'django.contrib.auth.middleware.AuthenticationMiddleware'."
-        )
+        if not hasattr(request, 'user'):
+            raise ImproperlyConfigured(
+                "The XView middleware requires authentication middleware to "
+                "be installed. Edit your MIDDLEWARE setting to insert "
+                "'django.contrib.auth.middleware.AuthenticationMiddleware'."
+            )
         if request.method == 'HEAD' and (request.META.get('REMOTE_ADDR') in settings.INTERNAL_IPS or
                                          (request.user.is_active and request.user.is_staff)):
             response = HttpResponse()