django guardian
provide object-level permissions on top of django’s authorization backend
celery
distributed system to process vast amounts of messages.
also look at airflow.
django-rest-framework
rest-api framework on top of django
django cors-headers
provide cross-origin resource Sharing
django-debug-toolbar
provider debug tools for django app
django-storages
collect static file to backend, for example s3.
django-pipeline
process static content like comprass
django-compressor
package static file
django-reversion
provide version control for model instances.