Clean up project code entry points

dandi/__init__.py

@@ -1,3 +1,7 @@
-from dandi.celery import app as celery_app
+# This project module is imported for us when Django starts. To ensure that Celery app is always
+# defined prior to any shared_task definitions (so those tasks will bind to the app), import
+# the Celery module here for side effects.
+from .celery import app as _celery_app  # noqa: F401
 
-__all__ = ('celery_app',)
+# Do not import anything else from this file, to avoid interfering with the startup order of the
+# Celery app and Django's settings.

dandi/asgi.py

@@ -0,0 +1,12 @@
+import os
+
+import configurations.importer
+from django.core.asgi import get_asgi_application
+
+
+os.environ['DJANGO_SETTINGS_MODULE'] = 'dandi.settings'
+if not os.environ.get('DJANGO_CONFIGURATION'):
+    raise ValueError('The environment variable "DJANGO_CONFIGURATION" must be set.')
+configurations.importer.install()
+
+application = get_asgi_application()

dandi/celery.py

@@ -3,19 +3,15 @@
 from celery import Celery
 import configurations.importer
 
+
 os.environ['DJANGO_SETTINGS_MODULE'] = 'dandi.settings'
 if not os.environ.get('DJANGO_CONFIGURATION'):
     raise ValueError('The environment variable "DJANGO_CONFIGURATION" must be set.')
 configurations.importer.install()
 
 # Using a string config_source means the worker doesn't have to serialize
 # the configuration object to child processes.
-app = Celery('dandi', config_source='django.conf:settings', namespace='CELERY')
+app = Celery(config_source='django.conf:settings', namespace='CELERY')
 
 # Load task modules from all registered Django app configs.
 app.autodiscover_tasks()
-
-
-@app.task(bind=True)
-def debug_task(self):
-    print('Request: {0!r}'.format(self.request))

dandi/wsgi.py

@@ -3,6 +3,7 @@
 import configurations.importer
 from django.core.wsgi import get_wsgi_application
 
+
 os.environ['DJANGO_SETTINGS_MODULE'] = 'dandi.settings'
 if not os.environ.get('DJANGO_CONFIGURATION'):
     raise ValueError('The environment variable "DJANGO_CONFIGURATION" must be set.')

manage.py

@@ -3,23 +3,16 @@
 import sys
 
 import configurations.importer
+from django.core.management import execute_from_command_line
 
 
-def main():
+def main() -> None:
     os.environ['DJANGO_SETTINGS_MODULE'] = 'dandi.settings'
     # Production usage runs manage.py for tasks like collectstatic,
     # so DJANGO_CONFIGURATION should always be explicitly set in production
     os.environ.setdefault('DJANGO_CONFIGURATION', 'DevelopmentConfiguration')
     configurations.importer.install(check_options=True)
 
-    try:
-        from django.core.management import execute_from_command_line
-    except ImportError as exc:
-        raise ImportError(
-            "Couldn't import Django. Are you sure it's installed and "
-            'available on your PYTHONPATH environment variable? Did you '
-            'forget to activate a virtual environment?'
-        ) from exc
     execute_from_command_line(sys.argv)