data associating with user connecting to users restricting access to - databases creating foreign keys many-to-one relationships migrating - queries querysets forms - cross-site request forgery displaying get and post requests modelform processing validation widgets hashes (for passwords) http error installed_appsmodifying jquery localhost @login_required login view manage py models - privileges runserver command static files superusersetting up templates anchor tags block tags context filters linebreaks filter template tags third party apps urls namespaces patterns index regular expressions user id values views web server gateway interface django-boostrap app docstrings dog py - dot notation einsteinalbert electric_car py - electric_car py module elif statement - else statement - emacs epoch time equality operator (==) even_numbers py even_or_odd py event loops - exceptionshandling deciding which errors to report else blocks - failing silently - filenotfounderror - to prevent crashes - try-except blocks - zerodivisionerror favorite_languages py - - filenotfounderror - file_reader py - files closing large - opening paths - reading entire files - line by line by making list of lines