id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
35545	Fix create_permissions LookupErrors	Csirmaz Bendegúz	Sarah Boyce	"[https://code.djangoproject.com/ticket/35408 #35408] introduced a bug in {{{contrib.auth}}}'s {{{create_permissions}}} function ([https://github.com/django/django/pull/18105 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'.
}}}
"	Bug	closed	contrib.auth	5.1	Release blocker	fixed		Adam Johnson Mariusz Felisiak Simon Charette	Ready for checkin	1	0	0	0	0	0