From 2a66c102d9c674fadab252a28d8def32a8b626ec Mon Sep 17 00:00:00 2001
From: Keryn Knight <keryn@kerynknight.com>
Date: Fri, 7 Jan 2022 12:57:03 +0000
Subject: [PATCH] Fixed #33425 -- Fixed view name for CBVs on technical 404
 debug page.

Regression in 0c0b87725bbcffca3bc3a7a2c649995695a5ae3b.
---
 django/views/debug.py                |  5 +++--
 docs/releases/4.0.2.txt              |  3 +++
 tests/view_tests/tests/test_debug.py | 14 +++++++++++---
 3 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/django/views/debug.py b/django/views/debug.py
index da9a17e60f4..cff199ddb44 100644
--- a/django/views/debug.py
+++ b/django/views/debug.py
@@ -545,8 +545,9 @@ def technical_404_response(request, exception):
         obj = resolver_match.func
 
         if hasattr(obj, 'view_class'):
-            caller = obj.view_class
-        elif hasattr(obj, '__name__'):
+            obj = obj.view_class
+
+        if hasattr(obj, '__name__'):
             caller = obj.__name__
         elif hasattr(obj, '__class__') and hasattr(obj.__class__, '__name__'):
             caller = obj.__class__.__name__
diff --git a/docs/releases/4.0.2.txt b/docs/releases/4.0.2.txt
index 21b1a56884f..71bb71e91d7 100644
--- a/docs/releases/4.0.2.txt
+++ b/docs/releases/4.0.2.txt
@@ -14,3 +14,6 @@ Bugfixes
 
 * Fixed a regression in Django 4.0 where ``help_text`` was HTML-escaped in
   automatically-generated forms (:ticket:`33419`).
+
+* Fixed a regression in Django 4.0 that caused displaying an incorrect name for
+  class-based views on the technical 404 debug page (:ticket:`33425`).
diff --git a/tests/view_tests/tests/test_debug.py b/tests/view_tests/tests/test_debug.py
index 5ceb7fc39eb..7c49fa51f3b 100644
--- a/tests/view_tests/tests/test_debug.py
+++ b/tests/view_tests/tests/test_debug.py
@@ -177,7 +177,11 @@ class DebugViewTests(SimpleTestCase):
             html=True,
         )
         self.assertContains(response, "Raised by:", status_code=404)
-        self.assertContains(response, "view_tests.views.technical404", status_code=404)
+        self.assertContains(
+            response,
+            '<td>view_tests.views.technical404</td>',
+            status_code=404,
+        )
         self.assertContains(
             response,
             '<p>The current path, <code>technical404/</code>, matched the '
@@ -188,8 +192,12 @@ class DebugViewTests(SimpleTestCase):
 
     def test_classbased_technical_404(self):
         response = self.client.get('/classbased404/')
-        self.assertContains(response, "Raised by:", status_code=404)
-        self.assertContains(response, "view_tests.views.Http404View", status_code=404)
+        self.assertContains(
+            response,
+            '<th>Raised by:</th><td>view_tests.views.Http404View</td>',
+            status_code=404,
+            html=True,
+        )
 
     def test_non_l10ned_numeric_ids(self):
         """