The code for today's lecture is available here.
Extra Reading
If you'd like to do some extra reading on the topic, consider the following two chapters from the book Think Python:
Ch. 1 The way of the program (2nd ed)
Ch. 1 Programming as a way of thinking (Colab notebook, 3rd ed)
Ch. 2 Variables, expressions and statements (2nd ed)
Ch. 2 Variables and statements (Colab notebook, 3rd ed)