In this class we talk about how to import optional features into Python. We also show how to make program files we can run.

This class will follow the same format as the last one. We will reinforce the videos with some activities. And we will also open it up to general questions.
 
NOTE: After class, it was pointed out that I made a mistake in the some of the poll questions. I was calling isclose with integer arguments when the documentation said they should be floats. It is not the case that this will necessarily produce an error (so the reponses that it crashes are not correct). But as you shall see in another week, it means I am a bad programmer.

This presentation references Lesson 3 and videos 4.5-4.4 of Lesson 4.