#33971: admindocs doesn't work if it appears before the admin in INSTALLED_APPS
---------------------------------------------+------------------------
               Reporter:  Tom Carrick        |          Owner:  nobody
                   Type:  Bug                |         Status:  new
              Component:  contrib.admindocs  |        Version:  dev
               Severity:  Normal             |       Keywords:
           Triage Stage:  Unreviewed         |      Has patch:  0
    Needs documentation:  0                  |    Needs tests:  0
Patch needs improvement:  0                  |  Easy pickings:  0
                  UI/UX:  0                  |
---------------------------------------------+------------------------
 This seems to be different from
 https://code.djangoproject.com/ticket/32150 as it's about the ordering of
 installed apps, not urls.

 It also seems to be a regression: this works fine in 4.0 but not in 4.1 /
 main.

 This does not work, but if you reverse the order it works fine:

 {{{
 #!python
 INSTALLED_APPS = [
     ...
     "django.contrib.admindocs",
     "django.contrib.admin",
 ]
 }}}

 With the error:

 {{{
 Environment:


 Request Method: GET
 Request URL: http://localhost:8000/admin/

 Django Version: 4.2.dev20220901073912
 Python Version: 3.10.0
 Installed Applications:
 ['django.contrib.admindocs',
  'django.contrib.admin',
  'django.contrib.auth',
  'django.contrib.contenttypes',
  'django.contrib.sessions',
  'django.contrib.messages',
  'django.contrib.staticfiles']
 Installed Middleware:
 ['django.middleware.security.SecurityMiddleware',
  'django.contrib.sessions.middleware.SessionMiddleware',
  'django.middleware.common.CommonMiddleware',
  'django.middleware.csrf.CsrfViewMiddleware',
  'django.contrib.auth.middleware.AuthenticationMiddleware',
  'django.contrib.messages.middleware.MessageMiddleware',
  'django.middleware.clickjacking.XFrameOptionsMiddleware']



 Traceback (most recent call last):
   File "/Users/tom/work/oss/django/django/core/handlers/exception.py",
 line 55, in inner
     response = get_response(request)
   File "/Users/tom/work/oss/django/django/core/handlers/base.py", line
 197, in _get_response
     response = wrapped_callback(request, *callback_args,
 **callback_kwargs)
   File "/Users/tom/work/oss/django/django/contrib/admin/sites.py", line
 261, in wrapper
     return self.admin_view(view, cacheable)(*args, **kwargs)
   File "/Users/tom/work/oss/django/django/utils/decorators.py", line 133,
 in _wrapper_view
     response = view_func(request, *args, **kwargs)
   File "/Users/tom/work/oss/django/django/views/decorators/cache.py", line
 62, in _wrapper_view_func
     response = view_func(request, *args, **kwargs)
   File "/Users/tom/work/oss/django/django/contrib/admin/sites.py", line
 242, in inner
     return view(request, *args, **kwargs)
   File "/Users/tom/work/oss/django/django/contrib/admin/sites.py", line
 552, in index
     app_list = self.get_app_list(request)
   File "/Users/tom/work/oss/django/django/contrib/admin/sites.py", line
 536, in get_app_list
     app_dict = self._build_app_dict(request, app_label)
   File "/Users/tom/work/oss/django/django/contrib/admin/sites.py", line
 520, in _build_app_dict
     "app_url": reverse(
   File "/Users/tom/work/oss/django/django/urls/base.py", line 88, in
 reverse
     return resolver._reverse_with_prefix(view, prefix, *args, **kwargs)
   File "/Users/tom/work/oss/django/django/urls/resolvers.py", line 803, in
 _reverse_with_prefix
     raise NoReverseMatch(msg)

 Exception Type: NoReverseMatch at /admin/
 Exception Value: Reverse for 'app_list' not found. 'app_list' is not a
 valid view function or pattern name.
 }}}

-- 
Ticket URL: <https://code.djangoproject.com/ticket/33971>
Django <https://code.djangoproject.com/>
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