Take a deep dive in Django

Offical Django tutorial

Part 1: Requests and responses

Part 2: Models and the admin site

Part 3: Views and templates

Part 4: Forms and generic views

Part 5: Testing

Part 6: Static files

Part 7: Customizing the admin site

postscript: cmd lines may need

python3 manage.py runserver

python3 manage.py shell

python3 manage.py test polls