Book Image

Modern Python Cookbook - Second Edition

By : Steven F. Lott
Book Image

Modern Python Cookbook - Second Edition

By: Steven F. Lott

Overview of this book

Python is the preferred choice of developers, engineers, data scientists, and hobbyists everywhere. It is a great language that can power your applications and provide great speed, safety, and scalability. It can be used for simple scripting or sophisticated web applications. By exposing Python as a series of simple recipes, this book gives you insight into specific language features in a particular context. Having a tangible context helps make the language or a given standard library feature easier to understand. This book comes with 133 recipes on the latest version of Python 3.8. The recipes will benefit everyone, from beginners just starting out with Python to experts. You'll not only learn Python programming concepts but also how to build complex applications. The recipes will touch upon all necessary Python concepts related to data structures, object oriented programming, functional programming, and statistical programming. You will get acquainted with the nuances of Python syntax and how to effectively take advantage of it. By the end of this Python book, you will be equipped with knowledge of testing, web services, configuration, and application integration tips and tricks. You will be armed with the knowledge of how to create applications with flexible logging, powerful configuration, command-line options, automated unit tests, and good documentation.
Table of Contents (18 chapters)
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Separating concerns via multiple inheritance

In the Choosing between inheritance and extension – the is-a question recipe earlier in the chapter, we looked at the idea of defining a Deck class that was a composition of playing card objects. For the purposes of that example, we treated each Card object as simply having a rank and a suit. This created two small problems:

  • The display for the card always showed a numeric rank. We didn't see J, Q, or K. Instead we saw 11, 12, and 13. Similarly, an ace was shown as 1 instead of A.
  • Many games, such as Blackjack and Cribbage, assign a point value to each rank. Generally, the face cards have 10 points. For Blackjack, an ace has two different point values; depending on the total of other cards in the hand, it can be worth 1 point or 10 points.

Python's multiple inheritance lets us handle all of these variations in card game rules while keeping a single, essential Card class. Using multiple inheritance...