Introduction to Python Functions

A look at how to, and why you should, use functions in your Python programs.

A Simple Python Quiz Program, Part 3

We enhance the quiz program by reading the questions and answers from a file. Source code

Simple Python Calculator using a Dictionary and Functions for Operators

This lesson creates a simple calculator using a dictionary to look up functions for operators. The point is to practice more with dictionaries, and to learn about higher-order functions.
Source code

Using Python's Input Function with Numbers

We show how to use Python's input function to get numbers, without the program breaking if something other than a number is entered.

A Simple Python Quiz Program, Part 2

We respond to a viewer question and add features to limit the number of questions displayed, and to display the questions that were answered wrong.

Carter Sande Teaches Python Functions

Carter Sande teaches how to use functions to a class at Diablo Valley College College for Kids. A couple of notes on this excellent presentation: At one point Carter says “brackets” when he means parentheses. And for style, I prefer spaces around operators, and whitespace around functions.