Python设计模式宝典：解决编程问题的艺术

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"《Mastering Python Design Patterns》是一本专为Python开发者编写的英文版设计模式指南。该书由Sakis Kasampalis撰写，由Packt Publishing出版，旨在帮助读者掌握解决实际问题的关键技能，通过各种设计模式来提升Python编程的艺术。书中涵盖了丰富的设计模式理论，如工厂模式、单例模式、观察者模式、策略模式等，这些都是软件开发中的核心概念，对于构建模块化、可维护且可扩展的代码至关重要。本书的高清目录提供了清晰的章节结构，从基础概念讲解到高级模式实践，逐步引导读者深入理解并应用这些模式。学习者可以通过阅读获取对Python语言在设计模式中的运用技巧，以及如何在实际项目中优化代码结构和提高代码复用性。版权方面，所有权利受到保护，未经Packt Publishing事先书面许可，不得复制、存储或通过任何形式或方式传输本书的内容，除非是在批评性文章或评论中引用部分短语。尽管作者和出版社尽力确保信息的准确性，但本书并不提供任何形式的保证，包括明示或暗示的质保。此外，关于书中提到的公司和产品的商标信息，虽然尽力标注，但出版社不能保证其准确性。《Mastering Python Design Patterns》是一本适合希望深入理解并运用Python设计模式的专业人士和初学者的重要参考资料，它将帮助读者提升编程技能，更好地应对复杂软件开发挑战。想要获取电子书的读者可以添加微信geekparty联系获取资源。"

Preface

[ 3 ]

What this book covers

Part 1: Creational patterns presents design patterns that deal with object creation.

Chapter 1, The Factory Pattern, will teach you how to use the Factory design pattern

(Factory Method and Abstract Factory) to initialize objects, and cover the benets of

using the Factory design pattern instead of direct object instantiation.

Chapter 2, The Builder Pattern, will teach you how to simplify the creation of objects

that are typically composed by more than one related objects.

Chapter 3, The Prototype Pattern, will teach you how to create a new object that is a full

copy (hence, the name clone) of an existing object.

Part 2: Structural patterns presents design patterns that deal with relationships

between the entities (classes, objects, and so on) of a system.

Chapter 4, The Adapter Pattern, will teach you how to make your existing code

compatible with a foreign interface (for example, an external library) with

minimal changes.

Chapter 5, The Decorator Pattern, will teach you how to enhance the functionality of an

object without using inheritance.

Chapter 6, The Facade Pattern, will teach you how to create a single entry point to hide

the complexity of a system.

Chapter 7, The Flyweight Pattern, will teach you how to reuse objects from an

object pool to improve the memory usage and possibly the performance of

your applications.

Chapter 8, The Model-View-Controller Pattern, will teach you how to improve the

maintainability of your applications by avoiding mixing the business logic with

the user interface.

Chapter 9, The Proxy Pattern, will teach you how to improve the security of your

application by adding an extra layer of protection.

Part 3: Behavioral patterns presents design patterns that deal with the

communication of the system's entities.

Chapter 10, The Chain of Responsibility Pattern, will teach you how to send a request

to multiple receivers.

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Preface

[ 4 ]

Chapter 11, The Command Pattern, will teach you how to make your application

capable of reverting already applied operations.

Chapter 12, The Interpreter Pattern, will teach you how to create a simple language on

top of Python, which can be used by domain experts without forcing them to learn

how to program in Python.

Chapter 13, The Observer Pattern, will teach you how to send notications to the

registered stakeholders of an object whenever its state changes.

Chapter 14, The State Pattern, will teach you how to create a state machine to model

a problem and the benets of this technique.

Chapter 15, The Strategy Pattern, will teach you how to pick (during runtime) an

algorithm between many available algorithms, based on some input criteria

(for example, the element size).

Chapter 16, The Template Pattern, will teach you how to make a clear separation

between the common and different parts of an algorithm to avoid unnecessary

code duplication.

What you need for this book

The code is written exclusively in Python 3. Python 3 is, in many aspects, not

compatible with Python 2.x [j.mp/p2orp3]. The focus is on Python 3.4.0 but using

Python 3.3.0 should also be ne, since there are no syntax differences between

Python 3.3.0 and Python 3.4.0 [j.mp/py3dot4]. In general, if you install the latest

Python 3 version from www.python.org, you should be ne with running the

examples. Most modules/libraries that are used in the examples are a part of the

Python 3 distribution. If an example requires any extra modules to be installed,

instructions on how to install them are given before presenting the related code.

Who this book is for

The audience of this book is Python programmers with an intermediate background

and an interest in design patterns implemented in idiomatic Python. Programmers

of other languages who are interested in Python can also benet, but it's better

if they rst read some materials that explain how things are done in Python

[j.mp/idiompyt], [j.mp/dspython].

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