In this lecture, we finally get into the unit on repetition in all its glory. I avoid showing examples of Python in hopes that you will take the concepts and search for how they are implemented in Python, with the textbook as a guide. Remember, Python doesn't support all forms of repetition but has some cool features of its own, instead. So the concepts we go over are important to know when you look at repetition in general, as other languages you might use someday will support the other patterns.