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Python in 24 Hours, Sams Teach Yourself de Katie Cunningham

Python in 24 Hours, Sams Teach Yourself

Autor Katie Cunningham
en Limba Engleză Paperback – oct 2013

În domeniul dezvoltării software, Python rămâne una dintre cele mai solicitate limbaje datorită versatilității sale în web development, automatizări și data science. Găsim în volumul Python in 24 Hours, Sams Teach Yourself, scris de Katie Cunningham, o resursă structurată tehnic pentru a transforma un începător într-un utilizator capabil să livreze soluții funcționale. Reținem că această ediție revizuită nu se limitează la teorie, ci impune un ritm riguros, împărțind materia în 24 de lecții aplicate, fiecare concepută pentru a fi parcursă în maximum o oră. Structura cărții urmărește o progresie logică: de la instalarea mediului de lucru pe diferite sisteme de operare, la manipularea structurilor de date și, în final, la implementarea unor proiecte complexe. Abordarea diferă de Beginning Python de Magnus Lie Hetland prin faptul că este mai puțin abstractă și mult mai orientată spre rezultate imediate. În timp ce alte manuale se concentrează pe mecanismele interne ale limbajului, Katie Cunningham ghidează cititorul prin sarcini concrete, precum stocarea datelor în SQLite sau crearea de aplicații web folosind framework-ul Flask. Fiecare capitol este dotat cu secțiuni de tip 'Workshop' și 'Q&A', elemente care forțează validarea cunoștințelor înainte de a trece la nivelul următor. Suntem de părere că includerea modulelor despre PyGame și lucrul cu fișiere JSON oferă acea deschidere practică necesară pentru a înțelege cum este utilizat Python în ecosistemul tehnologic actual.

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Specificații

ISBN-13: 9780672336874
ISBN-10: 0672336871
Pagini: 320
Ilustrații: Illustrations
Dimensiuni: 177 x 231 x 22 mm
Greutate: 0.49 kg
Ediția:2nd Revised edition
Editura: Pearson Education

De ce să citești această carte

Recomandăm această carte celor care doresc o metodă sistematică de a învăța programare fără a se pierde în detalii pur teoretice. Cititorul câștigă competențe directe în utilizarea bazelor de date, dezvoltarea de interfețe web și programarea orientată pe obiecte. Este un instrument ideal pentru reconversie profesională, oferind un fundament solid prin exerciții practice și soluții pentru evitarea erorilor de sintaxă sau logică.

Descriere scurtă

Python is the perfect “first programming language.” It’s easy for beginners to read and understand, and since it’s so widely used, you can apply what you’ve learned practically anywhere. Now, there’s a simple, up-to-date beginner’s tutorial that will help you master the newest versions of Python: Sams Teach Yourself Python in 24 Hours, Second Edition.
Completely rewritten by pioneering Python developer and advocate Katie Cunningham, this guide teaches simply and clearly, through 24 concise, hands-on lessons focused on knowledge you can apply immediately. Each lesson builds on what’s come before, showing exactly how to get practical results fast.
Cunningham doesn’t stop with syntax: she guides you towards building large real-world projects, including dynamic websites, games, and stand-alone applications. Using a running case study, every chapter makes real world connections between technical skills and their practical applications.
Throughout, step-by-step instructions walk you through key tasks... Q and As, Quizzes, and Exercises test your knowledge... “Did You Know?” tips offer insider advice... “Watch Out!” alerts help you avoid problems. By the time you’re finished, you won’t just understand core Python concepts: you’ll be comfortable writing useful Python software.

Cuprins

Preface xiv Who This Book Is For xiv How This Book Is Organized xiv Introduction 1 Learning to Program 1 Why Python? 2 Getting Started 2 How This Book Works 3 What to Do If You Get Stuck 3 HOUR 1 Installing and Running Python 5 Discovering Your Operating System 5 Setting Up Python on Windows 7 Setting Up Python on a Mac 11 Summary 15 Q&A 15 Workshop 16 HOUR 2 Putting Numbers to Work in Python 17 Storing Information with Variables 17 Doing Math in Python 20 Comparing Numbers 23 Applying Python Math in the Real World 24 Summary 25 Q&A 26 Workshop 26 HOUR 3 Logic in Programming 27 Using a Basic if Statement 27 Creating Blocks 28 Adding an else to an if 29 Testing Many Things with elif 30 True and False Variables. 31 Using try/except to Avoid Errors 32 Applying Logic to Real-World Problems 34 Summary 35 Q&A 35 Workshop 36 HOUR 4 Storing Text in Strings 37 Creating Strings 37 Printing Strings 38 Getting Information About a String 38 Math and Comparison 40 Formatting Strings. 42 Using Strings in the Real World 46 Summary 47 Q&A 47 Workshop 48 HOUR 5 Processing Input and Output 49 Getting Information from the Command Line 49 Getting a Password 53 Cleaning Up User Input 54 Formatting Output 55 Managing Input and Output in the Real World 57 Summary 58 Q&A 58 Workshop 58 HOUR 6 Grouping Items in Lists 61 Creating a List 61 Getting Information About a List 63 Manipulating Lists 64 Using Math in Lists 65 Ordering Lists 66 Comparing Lists 67 Using Lists in the Real World 67 Summary 68 Q&A 68 Workshop 69 HOUR 7 Using Loops to Repeat Code 71 Repeating a Set Number of Times 71 Repeating Only When True 76 Using Loops in the Real World 77 Summary 79 Q&A 79 Workshop 80 HOUR 8 Using Functions to Create Reusable Code 81 Creating a Basic Function 81 Passing Values to Functions 82 Variables in Functions: Scope 86 Grouping Functions Within a Function 88 Sending a Varying Number of Parameters 88 Using Functions in the Real World 89 Summary 92 Q&A 92 Workshop 93 HOUR 9 Using Dictionaries to Pair Keys with Values 95 Creating a Dictionary 95 Getting Information About a Dictionary 97 Comparing Dictionaries. 98 Using Dictionaries in the Real World 99 Summary 101 Q&A 101 Workshop 101 HOUR 10 Making Objects 103 Object-Oriented Programming 103 Planning an Object 107 Making Objects Out of Objects 108 Using Objects in the Real World 110 Summary 111 Q&A 111 Workshop 111 HOUR 11 Making Classes 113 Making a Basic Class Statement 113 Adding Methods to Classes 114 Setting Up Class Instances 116 Using Classes in the Real World 119 Summary 122 Q&A 122 Workshop 122 HOUR 12 Expanding Classes to Add Functionality 125 Built-in Extras 125 Class Inheritance 130 When to Expand Classes in the Real World 134 Summary 136 Q&A 136 Workshop 137 HOUR 13 Using Python's Modules to Add Functionality 139 Python Packages 139 Using the random Module 140 Using the datetime Module 143 Finding More Modules 145 Using Modules in the Real World 146 Summary 147 Q&A 147 Workshop 148 HOUR 14 Splitting Up a Program 149 Why Split Up a Program? 149 Deciding How to Break Up Code 150 How Python Finds a Program's Code 152 Splitting Up Code in the Real World 155 Summary 157 Q&A 157 Workshop 158 HOUR 15 Providing Documentation for Code 159 The Need for Good Documentation 159 Embedding Comments in Code 160 Explaining Code with Docstrings 162 Including README and INSTALL 164 Providing Documentation in the Real World 167 Summary 168 Q&A 168 Workshop 169 HOUR 16 Working with Program Files 171 Reading to and Writing from Files 171 Creating Files 174 Getting Information About a Directory 175 Getting Information About a File 178 Using Files in the Real World 180 Summary 181 Q&A 181 Workshop 181 HOUR 17 Sharing Information with JSON 183 The JSON Format 183 Working with JSON Files 185 Saving Objects as JSON 188 Creating Custom Dictionaries 189 Using JSON in the Real World 191 Summary 194 Q&A 194 Workshop 195 HOUR 18 Storing Information in Databases 197 Why Use Databases? 197 Talking to Databases with SQL. 198 Creating a Database 200 Querying the Database 203 Using Databases in the Real World 205 Summary 207 Q&A 207 Workshop 208 HOUR 19 Using SQL to Get More out of Databases 209 Filtering with WHERE 210 Sorting with ORDER BY 214 Getting Unique Items with DISTINCT 215 Updating Records with UPDATE 215 Deleting Records with DELETE 216 Using SQL in the Real World 217 Summary 220 Q&A 220 Workshop 221 HOUR 20 Developing for the Web with Flask 223 What Is Flask? 223 Installing Flask 225 Making Your First Flask App 228 Adding Templates 231 Using Frameworks in the Real World 237 Summary 238 Q&A 238 Workshop 239 HOUR 21 Making Games with PyGame 241 What Is PyGame? 241 Installing PyGame 242 Creating Screens 243 Creating Shapes 245 Moving Things Around on the Screen 248 Getting Input from the User 250 Drawing Text. 252 Using PyGame in the Real World 253 Summary 257 Q&A 257 Workshop 258 HOUR 22 Saving Your Code Properly Through Versioning 259 What Is Versioning? 259 Versioning with Git and GitHub 261 Managing Code in a Repository 263 Experimental Changes with Branches 267 Determining What Not to Push 270 Summary 271 Q&A 271 Workshop 271 HOUR 23 Fixing Problem Code 273 When Your Code Has a Bug 273 Locating Errors with a Traceback 274 Finding Errors with the pdb Debugger 275 Searching the Internet for Solutions 278 Trying a Fix 279 Finding Outside Support 280 Summary 282 Q&A 282 Workshop 283 HOUR 24 Taking the Next Steps with Python 285 Interesting Projects 285 Attending Conferences 288 Working with Linux 288 Contributing to Python 290 Contributing to Other Projects 290 Learning Another Language 290 Looking Forward to Python 3 291 Recommended Reading 292 Recommended Websites. 292 Summary 293 Q&A 293 Workshop 293 Index 295

Descriere

In just 24 sessions of one hour or less, Sams Teach Yourself Python in 24 Hours will help you get started fast, master all the core concepts of programming, and build anything from websites to games. Using this book's straightforward, step-by-step approach, you'll move from the absolute basics through functions, objects, classes, modules, database integration, and more. Every lesson and case study application builds on what you've already learned, giving you a rock-solid foundation for real-world success! Step-by-step instructions carefully walk you through the most common Python development tasks. Quizzes and Exercises at the end of each chapter help you test your knowledge. Notes present interesting information related to the discussion. Tips offer advice or show you easier ways to perform tasks. Warnings alert you to possible problems and give you advice on how to avoid them. Learn how to... Install and run the right version of Python for your operating system Store, manipulate, reformat, combine, and organise information Create logic to control how programs run and what they do Interact with users or other programs, wherever they are Save time and improve reliability by creating reusable functions Master Python data types: numbers, text, lists, and dictionaries Write object-oriented programs that work better and are easier to improve Expand Python classes to make them even more powerful Use third-party modules to perform complex tasks without writing new code Split programs to make them more maintainable and reusable Clearly document your code so others can work with it Store data in SQLite databases, write queries, and share data via JSON Simplify Python web development with the Flask framework Quickly program Python games with PyGame Avoid, troubleshoot, and fix problems with your code