Opened 6 months ago

Last modified 6 months ago

#35545 closed Bug

Fix create_permissions LookupErrors — at Initial Version

Reported by: Csirmaz Bendegúz Owned by: nobody
Component: contrib.auth Version: 5.1
Severity: Release blocker Keywords:
Cc: Adam Johnson, Mariusz Felisiak, Simon Charette Triage Stage: Ready for checkin
Has patch: yes Needs documentation: no
Needs tests: no Patch needs improvement: no
Easy pickings: no UI/UX: no

Description

#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 LookupErrors on Windows systems.

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'.

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