diff options
Diffstat (limited to 'django/apps')
| -rw-r--r-- | django/apps/config.py | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/django/apps/config.py b/django/apps/config.py index aeb47923d8..f5c971fc9c 100644 --- a/django/apps/config.py +++ b/django/apps/config.py @@ -118,8 +118,21 @@ class AppConfig: cls = getattr(mod, cls_name) except AttributeError: if module is None: - # If importing as an app module failed, that error probably - # contains the most informative traceback. Trigger it again. + # If importing as an app module failed, check if the module + # contains any valid AppConfigs and show them as choices. + # Otherwise, that error probably contains the most informative + # traceback, so trigger it again. + candidates = sorted( + repr(name) for name, candidate in mod.__dict__.items() + if isinstance(candidate, type) and + issubclass(candidate, AppConfig) and + candidate is not AppConfig + ) + if candidates: + raise ImproperlyConfigured( + "'%s' does not contain a class '%s'. Choices are: %s." + % (mod_path, cls_name, ', '.join(candidates)) + ) import_module(entry) else: raise |