#35408 introduced a bug in contrib.auth's create_permissions function (PR, commit d2c5a30e5a8595d06c4a70ff0f66032fee0d3c8e).
Since this function is called by the post_migrate signal, it affects the migrate command.
The function raises unexpected LookupError s.
Operations to perform:
Apply all migrations: admin, auth, contenttypes, dev, sessions
Running migrations:
Applying dev.0001_initial... OK
Traceback (most recent call last):
File "C:\Users\csirm\PycharmProjects\django-dev\venv\Lib\site-packages\django\apps\registry.py", line 158, in get_app_config
return self.app_configs[app_label]
~~~~~~~~~~~~~~~~^^^^^^^^^^^
KeyError: 'dev'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Users\csirm\PycharmProjects\django-dev\django_dev\manage.py", line 22, in <module>
main()
File "C:\Users\csirm\PycharmProjects\django-dev\django_dev\manage.py", line 18, in main
execute_from_command_line(sys.argv)
File "C:\Users\csirm\PycharmProjects\django-dev\venv\Lib\site-packages\django\core\management\__init__.py", line 442, in execute_from_command_line
utility.execute()
File "C:\Users\csirm\PycharmProjects\django-dev\venv\Lib\site-packages\django\core\management\__init__.py", line 436, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\Users\csirm\PycharmProjects\django-dev\venv\Lib\site-packages\django\core\management\base.py", line 413, in run_from_argv
self.execute(*args, **cmd_options)
File "C:\Users\csirm\PycharmProjects\django-dev\venv\Lib\site-packages\django\core\management\base.py", line 459, in execute
output = self.handle(*args, **options)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\csirm\PycharmProjects\django-dev\venv\Lib\site-packages\django\core\management\base.py", line 107, in wrapper
res = handle_func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\csirm\PycharmProjects\django-dev\venv\Lib\site-packages\django\core\management\commands\migrate.py", line 384, in handle
emit_post_migrate_signal(
File "C:\Users\csirm\PycharmProjects\django-dev\venv\Lib\site-packages\django\core\management\sql.py", line 52, in emit_post_migrate_signal
models.signals.post_migrate.send(
File "C:\Users\csirm\PycharmProjects\django-dev\venv\Lib\site-packages\django\dispatch\dispatcher.py", line 189, in send
response = receiver(signal=self, sender=sender, **named)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\csirm\PycharmProjects\django-dev\venv\Lib\site-packages\django\contrib\auth\management\__init__.py", line 78, in create_permissions
ctypes = ContentType.objects.db_manager(using).get_for_models(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\csirm\PycharmProjects\django-dev\venv\Lib\site-packages\django\contrib\contenttypes\models.py", line 93, in get_for_models
ct._meta.apps.get_model(ct.app_label, ct.model)._meta, []
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\csirm\PycharmProjects\django-dev\venv\Lib\site-packages\django\apps\registry.py", line 208, in get_model
app_config = self.get_app_config(app_label)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\csirm\PycharmProjects\django-dev\venv\Lib\site-packages\django\apps\registry.py", line 165, in get_app_config
raise LookupError(message)
LookupError: No installed app with label 'dev'.
Thank you Csirmaz for this report!
I can confirm I can reproduce in a simple Django project:
$ python -Wall manage.py migrate generator Operations to perform: Apply all migrations: generator Running migrations: Applying generator.0001_initial... OK Traceback (most recent call last): File "/home/nessita/fellowship/django/django/apps/registry.py", line 158, in get_app_config return self.app_configs[app_label] ~~~~~~~~~~~~~~~~^^^^^^^^^^^ KeyError: 'generator' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/home/nessita/fellowship/checklist-generator/manage.py", line 22, in <module> main() File "/home/nessita/fellowship/checklist-generator/manage.py", line 18, in main execute_from_command_line(sys.argv) File "/home/nessita/fellowship/django/django/core/management/__init__.py", line 442, in execute_from_command_line utility.execute() File "/home/nessita/fellowship/django/django/core/management/__init__.py", line 436, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "/home/nessita/fellowship/django/django/core/management/base.py", line 413, in run_from_argv self.execute(*args, **cmd_options) File "/home/nessita/fellowship/django/django/core/management/base.py", line 459, in execute output = self.handle(*args, **options) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/nessita/fellowship/django/django/core/management/base.py", line 107, in wrapper res = handle_func(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/nessita/fellowship/django/django/core/management/commands/migrate.py", line 384, in handle emit_post_migrate_signal( File "/home/nessita/fellowship/django/django/core/management/sql.py", line 52, in emit_post_migrate_signal models.signals.post_migrate.send( File "/home/nessita/fellowship/django/django/dispatch/dispatcher.py", line 189, in send response = receiver(signal=self, sender=sender, **named) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/nessita/fellowship/django/django/contrib/auth/management/__init__.py", line 78, in create_permissions ctypes = ContentType.objects.db_manager(using).get_for_models( ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/nessita/fellowship/django/django/contrib/contenttypes/models.py", line 93, in get_for_models ct._meta.apps.get_model(ct.app_label, ct.model)._meta, [] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/nessita/fellowship/django/django/apps/registry.py", line 208, in get_model app_config = self.get_app_config(app_label) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/nessita/fellowship/django/django/apps/registry.py", line 165, in get_app_config raise LookupError(message) LookupError: No installed app with label 'generator'.