Errors when running tests on Django 6 #2276
Description
I am disabling the DDT as per the documentation in tests. This has worked fine but in my new Django 6 based projects I am getting this traceback:
Found 0 test(s).
Traceback (most recent call last):
File "/code/project/manage.py", line 23, in <module>
main()
~~~~^^
File "/code/project/manage.py", line 19, in main
execute_from_command_line(sys.argv)
~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^
File "/opt/venv/lib/python3.14/site-packages/django/core/management/__init__.py", line 443, in execute_from_command_line
utility.execute()
~~~~~~~~~~~~~~~^^
File "/opt/venv/lib/python3.14/site-packages/django/core/management/__init__.py", line 437, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^
File "/opt/venv/lib/python3.14/site-packages/django/core/management/commands/test.py", line 24, in run_from_argv
super().run_from_argv(argv)
~~~~~~~~~~~~~~~~~~~~~^^^^^^
File "/opt/venv/lib/python3.14/site-packages/django/core/management/base.py", line 416, in run_from_argv
self.execute(*args, **cmd_options)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^
File "/opt/venv/lib/python3.14/site-packages/django/core/management/base.py", line 460, in execute
output = self.handle(*args, **options)
File "/opt/venv/lib/python3.14/site-packages/django/core/management/commands/test.py", line 63, in handle
failures = test_runner.run_tests(test_labels)
File "/opt/venv/lib/python3.14/site-packages/django/test/runner.py", line 1145, in run_tests
self.run_checks(databases)
~~~~~~~~~~~~~~~^^^^^^^^^^^
File "/opt/venv/lib/python3.14/site-packages/django/test/runner.py", line 1067, in run_checks
call_command("check", verbosity=self.verbosity, databases=databases)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/venv/lib/python3.14/site-packages/django/core/management/__init__.py", line 195, in call_command
return command.execute(*args, **defaults)
~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File "/opt/venv/lib/python3.14/site-packages/django/core/management/base.py", line 460, in execute
output = self.handle(*args, **options)
File "/opt/venv/lib/python3.14/site-packages/django/core/management/commands/check.py", line 81, in handle
self.check(
~~~~~~~~~~^
app_configs=app_configs,
^^^^^^^^^^^^^^^^^^^^^^^^
...<4 lines>...
databases=options["databases"],
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "/opt/venv/lib/python3.14/site-packages/django/core/management/base.py", line 492, in check
all_issues = checks.run_checks(
app_configs=app_configs,
...<2 lines>...
databases=databases,
)
File "/opt/venv/lib/python3.14/site-packages/django/core/checks/registry.py", line 89, in run_checks
new_errors = check(app_configs=app_configs, databases=databases)
File "/opt/venv/lib/python3.14/site-packages/django/contrib/admin/checks.py", line 138, in check_dependencies
if not _contains_subclass(
~~~~~~~~~~~~~~~~~~^
"django.contrib.auth.middleware.AuthenticationMiddleware", settings.MIDDLEWARE
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
):
^
File "/opt/venv/lib/python3.14/site-packages/django/contrib/admin/checks.py", line 38, in _contains_subclass
candidate_cls = import_string(path)
File "/opt/venv/lib/python3.14/site-packages/django/utils/module_loading.py", line 30, in import_string
return cached_import(module_path, class_name)
File "/opt/venv/lib/python3.14/site-packages/django/utils/module_loading.py", line 15, in cached_import
module = import_module(module_path)
File "/usr/local/lib/python3.14/importlib/__init__.py", line 88, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "<frozen importlib._bootstrap>", line 1398, in _gcd_import
File "<frozen importlib._bootstrap>", line 1371, in _find_and_load
File "<frozen importlib._bootstrap>", line 1342, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 938, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 759, in exec_module
File "<frozen importlib._bootstrap>", line 491, in _call_with_frames_removed
File "/opt/venv/lib/python3.14/site-packages/debug_toolbar/middleware.py", line 19, in <module>
from debug_toolbar.toolbar import DebugToolbar
File "/opt/venv/lib/python3.14/site-packages/debug_toolbar/toolbar.py", line 22, in <module>
from debug_toolbar.store import get_store
File "/opt/venv/lib/python3.14/site-packages/debug_toolbar/store.py", line 12, in <module>
from debug_toolbar.models import HistoryEntry
File "/opt/venv/lib/python3.14/site-packages/debug_toolbar/models.py", line 5, in <module>
class HistoryEntry(models.Model):
...<10 lines>...
return str(self.request_id)
File "/opt/venv/lib/python3.14/site-packages/django/db/models/base.py", line 136, in __new__
raise RuntimeError(
...<3 lines>...
)
RuntimeError: Model class debug_toolbar.models.HistoryEntry doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.
What do I need to do differently when running tests in Django 6?