Basics

This section builds and expands on Lesson 3: Variables, expressions and statements from py4e. While this is a good introduction to programming, it omits detail on some relevant topics that are expanded upon here.

Flowcharts: a graphical way to plan and visualise code logic

Debug: how to find mistakes, and understand ways to avoid them before you even begin complex code.

Variables: more information and ways to view/think about what a variable actually is

Operators: a summary of those in the book, and some additional ones

Buitins: some of the most frequently used builtin functions that are always present in Python without imports

Another excellent resource, and in particular for exploring what a program is, as well as touching on compilation is Professor Cravens excellent site program arcade games with python.