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Beginning Python
From Novice to Professional,
Second Edition
■■■
Magnus Lie Hetland
Beginning Python: From Novice to Professional, Second Edition
Copyright © 2008 by Magnus Lie Hetland
All rights reserved. No part of this work may be reproduced or transmitted in any form or by any means,
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system, without the prior written permission of the copyright owner and the publisher.
ISBN-13 (pbk): 978-1-59059-982-2
ISBN-10 (pbk): 1-59059-982-9
ISBN-13 (electronic): 978-1-4302-0634-7
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Contents at a Glance
About the Author
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii
About the Technical Reviewer
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xxv
Preface
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvii
Introduction
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxix
■
CHAPTER 1
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CHAPTER 2
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CHAPTER 3
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CHAPTER 4
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CHAPTER 5
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CHAPTER 6
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CHAPTER 7
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CHAPTER 8
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CHAPTER 9
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CHAPTER 10
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CHAPTER 11
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CHAPTER 12
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CHAPTER 13
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CHAPTER 14
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CHAPTER 15
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CHAPTER 16
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CHAPTER 17
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CHAPTER 18
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CHAPTER 19
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CHAPTER 20
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CHAPTER 21
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CHAPTER 22
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CHAPTER 23
iv
Instant Hacking: The Basics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Lists and Tuples
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Working with Strings
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Dictionaries: When Indices Won’t Do
. . . . . . . . . . . . . . . . . . . . . . . . . . 69
Conditionals, Loops, and Some Other Statements
. . . . . . . . . . . . . . 83
Abstraction
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
More Abstraction
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Exceptions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Magic Methods, Properties, and Iterators
. . . . . . . . . . . . . . . . . . . . . 175
Batteries Included
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Files and Stuff
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
Graphical User Interfaces
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Database Support
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
Network Programming
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305
Python and the Web
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321
Testing, 1-2-3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
Extending Python
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365
Packaging Your Programs
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383
Playful Programming
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393
Project 1: Instant Markup
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403
Project 2: Painting a Pretty Picture
. . . . . . . . . . . . . . . . . . . . . . . . . . . 425
Project 3: XML for All Occasions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 435
Project 4: In the News
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 453
■
CHAPTER 24
■
CHAPTER 25
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CHAPTER 26
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CHAPTER 27
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CHAPTER 28
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CHAPTER 29
■
APPENDIX A
■
APPENDIX B
■
APPENDIX C
■
APPENDIX D
Project 5: A Virtual Tea Party
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 469
Project 6: Remote Editing with CGI
. . . . . . . . . . . . . . . . . . . . . . . . . . . 489
Project 7: Your Own Bulletin Board
. . . . . . . . . . . . . . . . . . . . . . . . . . . 499
Project 8: File Sharing with XML-RPC
. . . . . . . . . . . . . . . . . . . . . . . . 517
Project 9: File Sharing II—Now with GUI!
. . . . . . . . . . . . . . . . . . . . . 537
Project 10: Do-It-Yourself Arcade Game
. . . . . . . . . . . . . . . . . . . . . . 547
The Short Version
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 569
Python Reference
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 579
Online Resources
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 595
Python 3.0
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 599
■
INDEX
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 607
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