Programming Python

If you've mastered Python's fundamentals, you're ready to start using it to get real work done. Programming Python will show you how, with in-depth tutorials on the language's primary application domains: system administration, GUIs, and the Web. You'll also explore how Python is used in databases, networking, front-end scripting layers, text processing, and more. This book focuses on commonly used tools and libraries to give you a comprehensive understanding of Python's many roles in practical, real-world programming. You'll learn language syntax and programming techniques in a clear and concise manner, with lots of examples that illustrate both correct usage and common idioms. Completely updated for version 3.x, Programming Python also delves into the language as a software development tool, with many code examples scaled specifically for that purpose. Topics include: Quick Python tour: Build a simple demo that includes data representation, object-oriented programming, object persistence, GUIs, and website basics System programming: Explore system interface tools and techniques for command-line scripting, processing files and folders, running programs in parallel, and more GUI programming: Learn to use Python's tkinter widget library Internet programming: Access client-side network protocols and email tools, use CGI scripts, and learn website implementation techniques More ways to apply Python: Implement data structures, parse text-based information, interface with databases, and extend and embed Python

Autorentext

Mark Lutz is the world leader in Python training, the author of Python's earliest and best-selling texts, and a pioneering figure in the Python community since 1992. He has been a software developer for 25 years, and is the author of O'Reilly's Programming Python, 3rd Edition and Python Pocket Reference, 3rd Edition.

Klappentext

If you've mastered Python's fundamentals, you're ready to start using it to get real work done. Programming Python will show you how, with in-depth tutorials on the language's primary application domains: system administration, GUIs, and the Web. You'll also explore how Python is used in databases, networking, front-end scripting layers, text processing, and more. This book focuses on commonly used tools and libraries to give you a comprehensive understanding of Python’s many roles in practical, real-world programming.

You'll learn language syntax and programming techniques in a clear and concise manner, with lots of examples that illustrate both correct usage and common idioms. Completely updated for version 3.x, Programming Python also delves into the language as a software development tool, with many code examples scaled specifically for that purpose.

Topics include:

• Quick Python tour: Build a simple demo that includes data representation, object-oriented programming, object persistence, GUIs, and website basics
• System programming: Explore system interface tools and techniques for command-line scripting, processing files and folders, running programs in parallel, and more
• GUI programming: Learn to use Python’s tkinter widget library
• Internet programming: Access client-side network protocols and email tools, use CGI scripts, and learn website implementation techniques
• More ways to apply Python: Implement data structures, parse text-based information, interface with databases, and extend and embed Python

Zusammenfassung
Once you've come to grips with the core Python language, learning how to build Python applications presents a far more interesting challenge. Many critics consider this classic book, now updated for Python 3.x, to be the industry standard tutorial for Python application programming.

Inhalt

Preface; "And Now for Something Completely Different..."; About This Book; About This Fourth Edition; What's Left, Then?; Python 3.X Impacts on This Book; Using Book Examples; Contacting O'Reilly; Conventions Used in This Book; Acknowledgments; The Beginning; Chapter 1: A Sneak Preview; 1.1 "Programming Python: The Short Story"; 1.2 The Task; 1.3 Step 1: Representing Records; 1.4 Step 2: Storing Records Persistently; 1.5 Step 3: Stepping Up to OOP; 1.6 Step 4: Adding Console Interaction; 1.7 Step 5: Adding a GUI; 1.8 Step 6: Adding a Web Interface; 1.9 The End of the Demo; System Programming; Chapter 2: System Tools; 2.1 "The os.path to Knowledge"; 2.2 System Scripting Overview; 2.3 Introducing the sys Module; 2.4 Introducing the os Module; Chapter 3: Script Execution Context; 3.1 "I'd Like to Have an Argument, Please"; 3.2 Current Working Directory; 3.3 Command-Line Arguments; 3.4 Shell Environment Variables; 3.5 Standard Streams; Chapter 4: File and Directory Tools; 4.1 "Erase Your Hard Drive in Five Easy Steps!"; 4.2 File Tools; 4.3 Directory Tools; Chapter 5: Parallel System Tools; 5.1 "Telling the Monkeys What to Do"; 5.2 Forking Processes; 5.3 Threads; 5.4 Program Exits; 5.5 Interprocess Communication; 5.6 The multiprocessing Module; 5.7 Other Ways to Start Programs; 5.8 A Portable Program-Launch Framework; 5.9 Other System Tools Coverage; Chapter 6: Complete System Programs; 6.1 "The Greps of Wrath"; 6.2 A Quick Game of "Find the Biggest Python File"; 6.3 Splitting and Joining Files; 6.4 Generating Redirection Web Pages; 6.5 A Regression Test Script; 6.6 Copying Directory Trees; 6.7 Comparing Directory Trees; 6.8 Searching Directory Trees; 6.9 Visitor: Walking Directories "++"; 6.10 Playing Media Files; 6.11 Automated Program Launchers (External); GUI Programming; Chapter 7: Graphical User Interfaces; 7.1 "Here's Looking at You, Kid"; 7.2 Python GUI Development Options; 7.3 tkinter Overview; 7.4 Climbing the GUI Learning Curve; 7.5 tkinter Coding Alternatives; 7.6 Adding Buttons and Callbacks; 7.7 Adding User-Defined Callback Handlers; 7.8 Adding Multiple Widgets; 7.9 Customizing Widgets with Classes; 7.10 Reusable GUI Components with Classes; 7.11 The End of the Tutorial; 7.12 Python/tkinter for Tcl/Tk Converts; Chapter 8: A tkinter Tour, Part 1; 8.1 "Widgets and Gadgets and GUIs, Oh My!"; 8.2 Configuring Widget Appearance; 8.3 Top-Level Windows; 8.4 Dialogs; 8.5 Binding Events; 8.6 Message and Entry; 8.7 Checkbutton, Radiobutton, and Scale; 8.8 Running GUI Code Three Ways; 8.9 Images; 8.10 Viewing and Processing Images with PIL; Chapter 9: A tkinter Tour, Part 2; 9.1 "On Today's Menu: Spam, Spam, and Spam"; 9.2 Menus; 9.3 Listboxes and Scrollbars; 9.4 Text; 9.5 Canvas; 9.6 Grids; 9.7 Time Tools, Threads, and Animation; 9.8 The End of the Tour; Chapter 10: GUI Coding Techniques; 10.1 "Building a Better Mousetrap"; 10.2 GuiMixin: Common Tool Mixin Classes; 10.3 GuiMaker: Automating Menus and Toolbars; 10.4 ShellGui: GUIs for Command-Line Tools; 10.5 GuiStreams: Redirecting Streams to Widgets; 10.6 Reloading Callback Handlers Dynamically; 10.7 Wrapping Up Top-Level Window Interfaces; 10.8 GUIs, Threads, and Queues; 10.9 More Ways to Add GUIs to Non-GUI Code; 10.10 The PyDemos and PyGadgets Launchers; Chapter 11: Complete GUI Programs; 11.1 "Python, Open Source, and Camaros"; 11.2 PyEdit: A Text Editor Program/Object; 11.3 PyPhoto: An Image Viewer and Resizer; 11.4 PyView: An Image and Notes Slideshow; 11.5 PyDraw: Painting and Moving Graphics; 11.6 PyClock: An Analog/Digital Clock Widget; 11.7 PyToe: A Tic-Tac-Toe Game Widget; 11.8 Where to Go from Here; Internet Programming; Chapter 12: Network Scripting; 12.1 "Tune In, Log On, and Drop Out"; 12.2 Python Internet Development Options; 12.3 Plumbing the Internet; 12.4 Socket Programming; 12.5 Handling Multiple Clients; 12.6 Making Sockets Look Like Files and Streams; 12.7 A Simple Python File Server; Chapter 13: Client-Side Scripting; 13.1 "Socket to Me!"; 13.2 FTP: Transferring Files over the Net; 13.3 Transferring Files with ftplib; 13.4 Transferring Directories with ftplib; 13.5 Transferring Directory Tree…