Book Image

Python 2.6 Text Processing: Beginners Guide

By : Jeff McNeil
Book Image

Python 2.6 Text Processing: Beginners Guide

By: Jeff McNeil

Overview of this book

<p>For programmers, working with text is not about reading their newspaper on a break; it's about taking textual data in one form and doing something to it. Extract, decrypt, parse, restructure – these are just some of the text tasks that can occupy much of a programmer's life. If this is your life, this book will make it better – a practical guide on how to do what you want with textual data in Python.</p> <p><em>Python 2.6 Text Processing Beginner's Guide</em> is the easiest way to learn how to manipulate text with Python. Packed with examples, it will teach you text processing techniques and give you the skills to work with the most popular Python libraries for transforming text from one form to another.</p> <p>The book gets you going with a quick look at some data formats, and installing the supporting libraries and components so that you're ready to get started. You move on to extracting text from a collection of sources and handling it using Python's built-in string functions and regular expressions. You look into processing structured text documents such as XML and HTML, JSON, and CSV. Then you progress to generating documents and creating templates. Finally you look at ways to enhance text output via a collection of third-party packages such as Nucular, PyParsing, NLTK, and Mako.</p>
Table of Contents (20 chapters)
Python 2.6 Text Processing Beginner's Guide
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Chapter 6: Structured Markup


SAX processing

  1. SAX can use less memory as the entire XML document is not loaded. It's a good choice when reading larger documents or when you do not need the entire context.

  2. Processing is generally more complex, requiring the application developer to keep state and build her own object hierarchy to represent the XML tree structure.

  3. That all text isn't necessarily delivered in one call and that all non-element data is included. This means all "pretty formatting" whitespace will be passed into your callback.

  4. The *NS versions are called when operating in Name Space mode, which is turned on via the appropriate parser.setFeature toggle.