Book Image

Modern Python Cookbook

Book Image

Modern Python Cookbook

Overview of this book

Python is the preferred choice of developers, engineers, data scientists, and hobbyists everywhere. It is a great scripting language that can power your applications and provide great speed, safety, and scalability. By exposing Python as a series of simple recipes, you can gain insight into specific language features in a particular context. Having a tangible context helps make the language or standard library feature easier to understand. This book comes with over 100 recipes on the latest version of Python. The recipes will benefit everyone ranging from beginner to an expert. The book is broken down into 13 chapters that build from simple language concepts to more complex applications of the language. The recipes will touch upon all the necessary Python concepts related to data structures, OOP, functional programming, as well as statistical programming. You will get acquainted with the nuances of Python syntax and how to effectively use the advantages that it offers. You will end the book equipped with the knowledge of testing, web services, and configuration and application integration tips and tricks. The recipes take a problem-solution approach to resolve issues commonly faced by Python programmers across the globe. You will be armed with the knowledge of creating applications with flexible logging, powerful configuration, and command-line options, automated unit tests, and good documentation.
Table of Contents (18 chapters)
Title Page
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Creating a class that has orderable objects


When simulating card games, it's often essential to be able to sort the Card objects into a defined order. When cards form a sequence, sometimes called a straight, this can be an important way to score the hand. This is part of games such as Poker, Cribbage, and even Pinochle.

Most of our class definitions have not included the features necessary for sorting objects into order. Many of the recipes have kept objects in mappings or sets based on the internal hash value computed by __hash__().

In order to keep items in a sorted collection, we'll need the comparison methods that implement <, >, <=, >=, ==, and !=. These comparisons are based on the attribute values of each object.

How do we create comparable objects?

Getting ready

The game of Pinochle generally involves a deck with 48 cards. There are six ranks—9, 10, Jack, Queen, King, and Ace. There are the standard four suits. Each of these 24 cards appears twice in the deck. We have to be...