Python Cookbook, 2. Auflage

Kurzbeschreibung

Portable, powerful, and a breeze to use, Python is the popular open source object-oriented programming language used for both standalone programs and scripting applications. It is now being used by an increasing number of major organizations, including NASA and Google.

Sprache: Englisch
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Beschreibung

Updated for Python 2.4, The Python Cookbook, 2nd Edition offers a wealth of useful code for all Python programmers, not just advanced practitioners. Like its predecessor, the new edition provides solutions to problems that Python programmers face everyday.

It now includes over 200 recipes that range from simple tasks, such as working with dictionaries and list comprehensions, to complex tasks, such as monitoring a network and building a templating system. This revised version also includes new chapters on topics such as time, money, and metaprogramming.

* Manipulating text

* Searching and sorting

* Working with files and the filesystem

* Object-oriented programming

* Dealing with threads and processes

* System administration

* Interacting with databases

* Creating user interfaces

* Network and web programming

* Processing XML

* Distributed programming

* Debugging and testing

Another advantage of The Python Cookbook, 2nd Edition is its trio of authors--three well-known Python programming experts, who are highly visible on email lists and in newsgroups, and speak often at Python conferences.

With scores of practical examples and pertinent background information, The Python Cookbook, 2nd Edition is the one source you need if you're looking to build efficient, flexible, scalable, and well-integrated systems.

Inhaltsverzeichnis

Preface

Part I. The Beginning

1. Introducing Python

"And Now for Something Completely Different"

Python Philosophy 101

The Life of Python

Signs of the Python Times

The Compulsory Features List

What's Python Good For?

What's Python Not Good For?

Truth in Advertising

2. A Sneak Preview

The Short Story"

The Task

Representing Records

Storing Records Persistently

Stepping Up to OOP

Adding Console Interaction

Adding a GUI

Adding a Web Interface

The End of the Demo

Part II. System Programming

3. System Tools

"The os.path to Knowledge"

System Scripting Overview

Introducing the sys Module

Introducing the os Module

Script Execution Context

Current Working Directory

Command-Line Arguments

Shell Environment Variables

Standard Streams

4. File and Directory Tools

"Erase Your Hard Drive in Five Easy Steps!"

File Tools

Directory Tools

5. Parallel System Tools

"Telling the Monkeys What to Do"

Forking Processes

Threads

Program Exits

Interprocess Communication

Pipes

Signals

Other Ways to Start Programs

A Portable Program-Launch Framework

Other System Tools

Utilities

"Splits and Joins and Alien Invasions"

Splitting and Joining Files

Generating Forward-Link Web Pages

A Regression Test Script

Packing and Unpacking Files

Automated Program Launchers

Directories

"The Greps of Wrath"

Fixing DOS Line Ends

Fixing DOS Filenames

Searching Directory Trees

Walking Trees Generically

Copying Directory Trees

Deleting Directory Trees

Comparing Directory Trees

Part III. GUI Programming

8. Graphical User Interfaces

"Here's Looking at You, Kid"

Python GUI Development Options

Tkinter Overview

Climbing the GUI Learning Curve

Tkinter Coding Basics

Tkinter Coding Alternatives

Adding Buttons and Callbacks

Adding User-Defined Callback Handlers

Adding Multiple Widgets

Customizing Widgets with Classes

Reusable GUI Components with Classes

The End of the Tutorial

Python/Tkinter for Tcl/Tk Converts

9. A Tkinter Tour, Part 1

"Widgets and Gadgets and GUIs, Oh My!"

Configuring Widget Appearance

Top-Level Windows

Dialogs

Binding Events

Message and Entry

Checkbutton, Radiobutton, and Scale

Running GUI Code Three Ways

Images

Viewing and Processing Images with PIL

10. A Tkinter Tour, Part 2

Spam, Spam, and Spam"

Menus

Listboxes and Scrollbars

Text

Canvas

Grids

Time Tools, Threads, and Animation

The End of the Tour

The PyDemos and PyGadgets Launchers

11. GUI Coding Techniques

"Building a Better Mouse Trap"

Common Tool Mixin Classes

Automating Menus and Toolbars

GUIs for Command-Line Tools

Redirecting Streams to Widgets

Reloading Callback Handlers Dynamically

Wrapping Up Top-Level Window Interfaces

GUIs, Threads, and Queues

More Ways to Add GUIs to Non-GUI Code

12. Complete GUI Programs

"Python, Open Source, and Camaros"

A Text Editor Program/Object

An Image Viewer and Resizer

An Image and Notes Slideshow

Painting and Moving Graphics

An Analog/Digital Clock Widget

A Tic-Tac-Toe Game Widget

Where to Go from Here

Part IV. Internet Programming

13. Network Scripting

"Tune In, Log On, and Drop Out"

Plumbing the Internet

Socket Programming

Handling Multiple Clients

A Simple Python File Server

14. Client-Side Scripting

"Socket to Me!"

Transferring Files over the Net

Processing Internet Email

Fetching Email

Sending Email

Parsing and Composing Mails

A Console-Based Email Client

The mailtools Utility Package

Accessing Newsgroups

Accessing Web Sites

Module urllib Revisited

Other Client-Side Scripting Options

15. The PyMailGUI Client

"Use the Source, Luke"

A PyMailGUI Demo

PyMailGUI Implementation

16. Server-Side Scripting

"Oh What a Tangled Web We Weave"

What's a Server-Side CGI Script?

Running Server-Side Examples

Climbing the CGI Learning Curve

Saving State Information in CGI Scripts

The Hello World Selector

Refactoring Code for Maintainability