If you haven’t checked out django-todo for a while, the project has been super-active lately! In the past few months it’s gained support for file attachments, batch-task-import via CSV, and a fully integrated email tracker. Now at version 2.4.6 on pipy, or check out the live demo site.
I started this project as a small demo more than ten years ago, and it’s evolved into a piece of staple software in the Django ecosystem. Proud of what it’s become!