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Book Details

• Title: Learning Python Design Patterns
• Author: Gennadiy Zlobin
• Length: 100 pages
• Edition: 1
• Language: English
• Publisher: Packt Publishing
• Publication Date: 2013-11-25
• ISBN-10: 1783283378
• ISBN-13: 9781783283378
  

Editorial Reviews

A practical and fast-paced guide exploringPython design patterns

Overview

Explore the Model-View-Controller patternand learn how to build a URL shortening service

All design patterns use a real-worldexample that can be modified and applied in your software

No unnecessary theory! The book consists ofonly the fundamental knowledge that you need to know

In Detail

Design pattern is a well-known approach tosolve some specific problems which each software developer comes across duringhis work. Design patterns capture higher-level constructs that commonly appearin programs. If you know how to implement the design pattern in one language,typically you will be able to port and use it in another object-orientedprogramming language.

The choice of implementation languageaffects the use of design patterns. Naturally, some languages are moreapplicable for certain tasks than others. Each language has its own set ofstrengths and weaknesses. In this book, we introduce some of the better knowndesign patterns in Python. You will learn when and how to use the designpatterns, and implement a real-world example which you can run and examine byyourself.

You will start with one of the most popularsoftware architecture patterns which is the Model- View-Controller pattern.Then you will move on to learn about two creational design patterns which areSingleton and Factory, and two structural patterns which are Facade and Proxy.Finally, the book also explains three behavioural patterns which are Command,Observer, and Template.

What you will learn from this book

Create different implementations of thesame algorithm with the least modifications

Implement the publisher-subscriber pattern

Create an object when only one instance ofit is needed

Create a simple interface using the Facadedesign pattern

Increase the functionality while leavingthe interface unchanged

Approach

This book takes a tutorial-based anduser-friendly approach to covering Python design patterns. Its concisepresentation means that in a short space of time, you will get a goodintroduction to various design patterns.

Who this book is written for

If you are an intermediate level Pythonuser, this book is for you. Prior knowledge of Python programming is essential.Some knowledge of UML is also required to understand the UML diagrams which areused to describe some design patterns.

Table of Contents

Chapter 1: Model-View-Controller

Chapter 2: Creating Only One Object withthe Singleton Pattern

Chapter 3: Building Factories to CreateObjects

Chapter 4: The Facade Design Pattern

Chapter 5: Facilitating ObjectCommunication with Proxy and Observer Patterns

Chapter 6: Encapsulating Calls with theCommand Pattern

Chapter 7: Redefining Algorithms with theTemplate Method

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