Python核心编程第二版：英文原版概览

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"Python核心编程第二版，由Wesley J. Chun撰写，是Python编程领域的一本权威著作。本书由Prentice Hall出版社于2006年9月出版，ISBN-10为0-13-226993-7，ISBN-13为978-0-13-226993-3，共计1120页，包含了详细的内容目录和索引。" 在《Python核心编程》第二版中，作者Wesley J. Chun深入浅出地介绍了Python语言的基础和高级特性。这本书旨在帮助读者全面理解和掌握Python编程，无论他们是初学者还是有一定经验的开发者。以下是一些关键知识点： 1. **Python基础**：书中详细介绍了Python的语法基础，包括变量、数据类型（如整型、浮点型、字符串、列表、元组、字典等）、流程控制（如条件语句、循环结构）、函数定义与调用，以及异常处理。 2. **面向对象编程**：讲解了Python的面向对象特性，包括类的定义、继承、多态、封装以及模块和包的使用，帮助读者理解Python的面向对象设计模式。 3. **高级主题**：涵盖了函数式编程概念，如高阶函数、闭包和装饰器；并讨论了元编程，包括元类和动态类型系统的特性。 4. **文件操作和系统接口**：阐述了如何进行文件和目录操作，以及如何通过Python接口与操作系统交互，如系统调用和进程管理。 5. **网络编程**：介绍了网络编程的基本概念，包括套接字编程，以及如何创建客户端和服务器应用程序。 6. **数据库编程**：讲解了如何使用Python连接和操作各种类型的数据库，如SQLite、MySQL、Oracle等，以及使用ORM（对象关系映射）工具如SQLAlchemy。 7. **Web开发**：探讨了Python在Web开发中的应用，可能包括使用Django或Flask等框架创建Web应用。 8. **标准库和第三方库**：介绍了Python的标准库，如os、sys、re等，并讨论了一些常用的第三方库，如NumPy、Pandas和Matplotlib用于科学计算和数据分析。 9. **错误调试和测试**：讲解了如何有效地调试代码，以及编写单元测试和集成测试，以确保代码的质量和可靠性。 10. **性能优化**：提供了关于Python性能分析和优化的策略，包括代码的优化技巧和使用Cython等工具进行性能提升。本书得到了业界的高度评价，被赞誉为学习Python的最佳书籍之一。通过Wesley Chun的清晰讲解和实用的练习，读者可以系统地掌握Python编程的核心概念和技术，从而能够自信地应用于实际项目中。

Praise for Core Python Programming

"The long-awaited second edition of Wesley Chun's Core Python Programming proves to

be well worth the waitits deep and broad coverage and useful exercises will help readers

learn and practice good Python."

Alex Martelli, author of Python in a Nutshell and editor of Python Cookbook

"There has been lot of good buzz around Wesley Chun's Core Python Programming. It

turns out that all the buzz is well earned. I think this is the best book currently available

for learning Python. I would recommend Chun's book over Learning Python (O'Reilly),

Programming Python (O'Reilly), or The Quick Python Book (Manning)."

David Mertz, Ph.D., IBM DeveloperWorks

"I have been doing a lot of research [on] Python for the past year and have seen a

number of positive reviews of your book. The sentiment expressed confirms the opinion

that Core Python Programming is now considered the standard introductory text."

Richard Ozaki, Lockheed Martin

"Finally, a book good enough to be both a textbook and a reference on the Python

language now exists."

Michael Baxter, Linux Journal

"Very well written. It is the clearest, friendliest book I have come across yet for

explaining Python, and putting it in a wider context. It does not presume a large amount

of other experience. It does go into some important Python topics carefully and in depth.

Unlike too many beginner books, it never condescends or tortures the reader with childish

hide-and-seek prose games. [It] sticks to gaining a solid grasp of Python syntax and

structure."

http://python.org bookstore Web site

"[If] I could only own one Python book, it would be Core Python Programming by Wesley

Chun. This book manages to cover more topics in more depth than Learning Python but

includes it all in one book that also more than adequately covers the core language. [If]

you are in the market for just one book about Python, I recommend this book. You will

enjoy reading it, including its wry programmer's wit. More importantly, you will learn

Python. Even more importantly, you will find it invaluable in helping you in your day-to-

day Python programming life. Well done, Mr. Chun!"

Ron Stephens, Python Learning Foundation

"I think the best language for beginners is Python, without a doubt. My favorite book is

Core Python Programming."

s003apr, MP3Car.com Forums

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Preface

Welcome to Core Python Programming!

We are delighted that you have engaged us to help you learn Python as quickly and as in-depth as

possible. Learning the syntax is one goal of this book; however, we also believe that if you learn how

Python works under the covers, you won't just be able to program in Python, but you will write more

effective Python applications even as a beginner to the language. As you know, just because you learn a

language's syntax does not make you competent in it right away.

Throughout the book, you will find many examples that you can try right in front of your computer. To

hammer the concepts home, you will also find fun and challenging exercises at the end of every chapter.

These easy and intermediate exercises are meant to test your learning and push your Python skills.

There simply is no substitute for experience. We believe you should not only pick up Python

programming skills but also be able to master them in as short a time period as possible.

About This Book

This book differs from other Python books on the market by presenting a broad range of topics,

providing numerous examples, and going in-depth where necessary. This book does not require a

specific background such as prior knowledge of C or object-oriented programming. It is also not a large

case study book that does not facilitate picking up the language quickly. Finally, this book is not a pure

reference nor is it meant to be a quick "dive" into Python. What we have is an extremely comprehensive

introduction to the core features of the language (

Part I) followed by a set of chapters that delve into

specific areas of intermediate Python programming.

This book is 40 percent introductory, 40 percent intermediate to advanced, and 20 percent reference. It

is targeted toward technical professionals who are already familiar with programming in one other high-

level language, as well as university/college and secondary students. Because Python is used in larger

solutions such as Zope, Plone, MailMan, and Django, this book may be used by principals developing,

managing, maintaining, or integrating with those systems.

With regards to the code in this book, about a third of the first edition readers sent in complaints that

there were not enough large, full-fledged applications in the book, or that the code examples were not

long or comprehensive enough. Everyone else wrote that they loved the short, easy-to-understand

examples and were not bored of page after page of mind-numbing code. The philosophy behind more

short examples is to give you the ability to look at a piece of code and grasp its entirety. These turn into

building blocks to understanding and then can be incorporated into larger applications as well. There are

line-by-line explanations for most of the larger programs in the book. The abundant interpreter code

snippets scattered throughout the book are there for you to try on your computer as you are learning

Pythonuse the interactive interpreter as much as possible. You not only learn and improve your Python

from using it, but you can also benefit from working out bugs in your code before you paste it into your

source file.

Because you cannot learn Python well without practice, you will find the exercises at the end of every

chapter to be one of the greatest strengths of this book. They will test your knowledge of chapter topics

and definitions, as well as get you to code as much as possible. There is no substitute to learning a

programming language faster and more effectively than by building applications. You will find easy,

intermediate, and difficult problems to solve. It is also here that you may have to write one of those

"large" applications that many readers wanted to see in the book, but rather than having me do it, you

gain the most from such exercises.

Appendix A features answers to selected problems from each

chapter.

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Preface

Another set of first edition readers remarked how useful the reference tables were throughout the book,

and how they meticulously copied them for reference. Well, instead of flipping through each chapter

looking for the tables, we have summarized the most highly used ones in

Appendix B. Thanks for all of

your feedback. I encourage you to keep talking to us and help us make a third edition possible and

better than its predecessors!

Finally, both the "Other References" appendix and the CD-ROM from the first edition are not included

with this edition. You would not believe how quickly Web links can become obsolete in six months much

less six years! The most up-to-date source code and Python interpreters can easily be downloaded for

offline use at the book's Web site, so there really is no reason to include a CD-ROM.

About the Reader

This book is meant for you if you are a programmer completely new to Python or already know some

Python but want to know more and improve your Python skillset. Python is used in many fields,

including engineering, information technology, science, business, entertainment, and so on. This means

that the list of Python users (and readers of this book) includes but is not limited to:

● Software engineers

● Hardware design/CAD engineers

● QA/testing and automation framework developers

● IS/IT/system and network administrators

● Scientists and mathematicians

● Technical or project management staff

● Multimedia or audio/visual engineers

● SCM or release engineers

● Web masters and content management staff

● Customer/technical support engineers

● Database engineers and administrators

● Research and development engineers

● Software integration and professional services staff

● Collegiate and secondary educators

● Web service engineers

● Financial software engineers

● And many others

Some of the most famous companies using Python include Google, Yahoo!, NASA, Lucasfilm/Industrial

Light and Magic, Red Hat, Zope, Disney, Pixar, and Dreamworks.

The Author's Experience with Python

I discovered Python over a decade ago at a company called Four11. At the time, the company had one

major product, the Four11.com White Page directory service. Python was being used to design our next

product: the Rocketmail Web-based e-mail service that would eventually evolve into what today is

Yahoo!Mail.

It was fun learning Python and being on the original Yahoo!Mail engineering team. I helped rearchitect

the address book and spell checker. At the time, Python also made its way as part of a number of other

Yahoo! sites, including People Search, Yellow Pages, and Maps and Driving Directions, just to name a

few. I was the lead engineer for People Search.

Although Python was new to me then, it was fairly easy to pick upmuch simpler than other languages I

had learned in the past. The scarcity of textbooks at the time led me to primarily use the Library

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