Practical Coding in Python

Learn to write and validate your own code

Darren Kessner, PhD

(revised September 1, 2025)

Introduction
- About the book
- About the author
0. Hello, world!
1. Functions and Testing
2. Strings and Math
3. Loops & Algorithms
4. Classes and Objects
Appendix A: Virtual Environments and Libraries

Previous: hello

basics

Output:

x: 5
x: 1.23
x: hello
x: True

Next: loops

© 2015-2026 Darren Kessner