To understand everything that 61A is trying to teach you, it's important to understand the fundamental idea that everything is based on — how are Python programs executed?
Let's start by talking about control flow. The flow of control is the order in which statements are executed by a programming language. For the purposes of this class, let's establish a core assumption: only one line of Python code can be executed at any given time.
With this assumption in mind, let us analyze the different ways in which we can mess around with the flow of control in Python.