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You Will Learn Python!
Zed Shaw has perfected the world's best system for learning Python. Follow it and you will succeed-just like the hundreds of thousands of beginners Zed has taught to date! You bring the discipline, commitment, and persistence; the author supplies everything else.
In Learn Python the Hard Way, Third Edition, you'll learn Python by working through 52 brilliantly crafted exercises. Read them. Type their code precisely. (No copying and pasting!) Fix your mistakes. Watch the programs run. As you do, you'll learn how software works; what good programs look like; how to read, write, and think about code; and how to find and fix your mistakes using tricks professional programmers use. Most importantly, you'll learn the following, which you need to start writing excellent Python software of your own:
This tutorial will reward you for every minute you put into it. Soon, you'll know one of the world's most powerful, popular programming languages. You'll be a Python programmer.
Watch Zed, too! The accompanying DVD contains 5+ hours of passionate, powerful teaching: a complete Python video course!
Auteur
Zed A. Shaw is the author of the popular online books Learn Python the Hard Way, Learn Ruby the Hard Way, and Learn C the Hard Way. He is also the creator of several open source software projects like Mongrel, Lamson, Mongrel2, and has been programming and writing for nearly 20 years.
Contenu
Preface 1 Acknowledgments 1 The Hard Way Is Easier 1 Do Not Copy-Paste 2 A Note on Practice and Persistence 3 A Warning for the Smarties 3
Exercise 0: The Setup 6 Mac OSX 6 Windows 7 Linux 9 Warnings for Beginners 10
Exercise 1: A Good First Program 12 What You Should See 14 Study Drills 15 Common Student Questions 16
Exercise 2: Comments and Pound Characters 18 What You Should See 18 Study Drills 18 Common Student Questions 19
Exercise 3: Numbers and Math 20 What You Should See 21 Study Drills 21 Common Student Questions 22
Exercise 4: Variables and Names 24 What You Should See 25 Study Drills 25 Common Student Questions 25
Exercise 5: More Variables and Printing 28 What You Should See 28 Study Drills 29 Common Student Questions 29
Exercise 6: Strings and Text 30 What You Should See 31 Study Drills 31 Common Student Questions 31
Exercise 7: More Printing. 32 What You Should See 32 Study Drills 32 Common Student Questions 33
Exercise 8: Printing, Printing 34 What You Should See 34 Study Drills 34 Common Student Questions 34
Exercise 9: Printing, Printing, Printing 36 What You Should See 36 Study Drills 36 Common Student Questions 37
Exercise 10: What Was That? 38 What You Should See 39 Escape Sequences 39 Study Drills 40 Common Student Questions 40
Exercise 11: Asking Questions 42 What You Should See 42 Study Drills 43 Common Student Questions 43
Exercise 12: Prompting People 44 What You Should See 44 Study Drills 44 Common Student Questions 45
Exercise 13: Parameters, Unpacking, Variables 46 Hold Up! Features Have Another Name 46 What You Should See 47 Study Drills 48 Common Student Questions 48
Exercise 14: Prompting and Passing 50 What You Should See 50 Study Drills 51 Common Student Questions 51
Exercise 15: Reading Files 54 What You Should See 55 Study Drills 55 Common Student Questions 56
Exercise 16: Reading and Writing Files 58 What You Should See 59 Study Drills 59 Common Student Questions 60
Exercise 17: More Files 62 What You Should See 63 Study Drills 63 Common Student Questions 63
Exercise 18: Names, Variables, Code, Functions 66 What You Should See 67 Study Drills 68 Common Student Questions 68
Exercise 19: Functions and Variables 70 What You Should See 71 Study Drills 71 Common Student Questions 71
Exercise 20: Functions and Files 74 What You Should See 75 Study Drills 75 Common Student Questions 75
Exercise 21: Functions Can Return Something 78 What You Should See 79 Study Drills 79 Common Student Questions 80
Exercise 22: What Do You Know So Far? 81 What You Are Learning 81
Exercise 23: Read Some Code 82
Exercise 24: More Practice 84 What You Should See 85 Study Drills 85 Common Student Questions 85
Exercise 25: Even More Practice 86 What You Should See 87 Study Drills 88 Common Student Questions 89
Exercise 26: Congratulations, Take a Test! 90 Common Student Questions 90
Exercise 27: Memorizing Logic 92 The Truth Terms 92 The Truth Tables 93 Common Student Questions 94
Exercise 28: Boolean Practice 96 What You Should See 98 Study Drills 98 Common Student Questions 98
Exercise 29: What If 100 What You Should See 100 Study Drills 101 Common Student Questions 101
Exercise 30: Else and If 102 What You Should See 103 Study Drills 103 Common Student Questions 103
Exercise 31: Making Decisions 104 What You Should See 105 Study Drills 105 Common Student Questions 105
Exercise 32: Loops and Lists 106 What You Should See 107 Study Drills 108 Common Student Questions 108
Exercise 33: While-Loops 110 What You Should See 111 Study Drills 111 Common Student Questions 112
Exercise 34: Accessing Elements of Lists 114 Study Drills 115
Exercise 35: Branches and Functions 116 What You Should See 117 Study Drills 118 Common Student Questions 118
Exercise 36: Designing and Debugging 120 Rules for If-Statements 120 Rules for Loops 120 Tips for Debugging 121 Homework 121
Exercise 37: Symbol Review 122 Keywords 122 Data Types 123 String Escape Sequences 124 String Formats 124 Operators 125 Reading Code 126 Study Drills 127 Common Student Questions 127
Exercise 38: Doing Things to Lists 128 What You Should See 129 Study Drills 130 Common Student Questions 130
Exercise 39: Dictionaries, Oh Lovely Dictionaries 132 What You Should See 134 Study Drills 135 Common Student Questions 135
Exercise 40: Modules, Classes, and Objects 138 Modules Are Like Dictionaries 138 What You Should See 142 Study Drills 142 Common Student Questions 143
Exercise 41: Learning to Speak Object Oriented 144 Word Drills 144 Phrase Drills 144 Combined Drills 145 A Reading Test 145 Practice English to Code 147 Reading More Code 148 Common Student Questions 148
Exercise 42: Is-A, Has-A, Objects, and Classes 150 How This Looks in Code 151 About class Name(object) 153 Study Drills 153 Common Student Questions 154
Exercise 43: Basic Object-Oriented Analysis and Design 156 The Analysis of a Simple Game Engine 157 Top Down vs. Bottom Up 161 The Code for "Gothons from Planet Percal #25" 162 What You Should See 167 Study Drills 168 Common Student Questions 168
Exercise 44: Inheritance vs. Composition 170 What Is Inheritance? 170 The Reason for super() 175 Composition 176 When to Use Inheritance or Composition 177 Study Drills 177 Common Student Questions 178
Exercise 45: You Make a Game 180 Evaluating Your Game 180 Function Style 181 Class Style 181 Code Style 182 Good Comments 182 Evaluate Your Game 183
Exercise 46: A Project Skeleton 184 Installing Python Packages 184 Creating the Skeleton Project Directory 185 Testing Your Setup 187 Using the Skeleton 188 Required Quiz 188 Common Student Questions 189
Exercise 47: Automated Testing 190 Writing a Test Case 190 Testing Guidelines 192 What You Should See 192 Study Drills 193 Common Student Questions 193
Exercise 48: Advanced Us…