Testing is good... django$ find django -name '*.py' | xargs wc -l | tail -1 116949 total django$ find tests -name '*.py' | xargs wc -l | tail -1 91002 total Testing can be tedious... you'll be testing in the browser anyway form some good habits cheat Slides can be tedious... Let's build something Optimised for demonstration only Pick the bits that work best for you