INSTRUCTOR NOTE:

Errata:

Around 1:20 in the video, the instructor mentions adding code to newmenuitem.html. However, the file he is actually editing is menu.html. To follow along with this instruction, you should edit menu.html and not newmenuitem.html.

Instructor notes:

https://github.com/udacity/Full-Stack-Foundations/tree/master/Lesson-3/16_Flash-Messaging

Click here to learn more about the 'with' statement in python: http://effbot.org/zone/python-with-statement.htm