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Modern Python Cookbook

You're reading from   Modern Python Cookbook 130+ updated recipes for modern Python 3.12 with new techniques and tools

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Product type Paperback
Published in Jul 2024
Publisher Packt
ISBN-13 9781835466384
Length 818 pages
Edition 3rd Edition
Languages
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Author (1):
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Steven F. Lott Steven F. Lott
Author Profile Icon Steven F. Lott
Steven F. Lott
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Toc

Table of Contents (20) Chapters Close

Preface 1. Chapter 1 Numbers, Strings, and Tuples FREE CHAPTER 2. Chapter 2 Statements and Syntax 3. Chapter 3 Function Definitions 4. Chapter 4 Built-In Data Structures Part 1: Lists and Sets 5. Chapter 5 Built-In Data Structures Part 2: Dictionaries 6. Chapter 6 User Inputs and Outputs 7. Chapter 7 Basics of Classes and Objects 8. Chapter 8 More Advanced Class Design 9. Chapter 9 Functional Programming Features 10. Chapter 10 Working with Type Matching and Annotations 11. Chapter 11 Input/Output, Physical Format, and Logical Layout 12. Chapter 12 Graphics and Visualization with Jupyter Lab 13. Chapter 13 Application Integration: Configuration 14. Chapter 14 Application Integration: Combination 15. Chapter 15 Testing 16. Chapter 16 Dependencies and Virtual Environments 17. Chapter 17 Documentation and Style 18. Other Books You May Enjoy
19. Index

11.8 Reading HTML documents

A great deal of content on the web is presented using HTML. A browser renders the data very nicely. We can write applications to extract content from HTML pages.

Parsing HTML involves two complications:

  • Ancient HTML dialects that are distinct from modern XML

  • Browsers that tolerate HTML that’s incorrect and create a proper display

The first complication is the history of HTML and XML. Modern HTML is a specific document type of XML. Historically, HTML started with its own unique document type definitions, based on the older SGML. These original SGML/HTML concepts were revised and extended to create a new language, XML. During the transition from legacy HTML to XML-based HTML, web servers provided content using a variety of transitional document type definitions. Most modern web servers use a <DOCTYPE html> preamble to state that the document is properly structured XML syntax, using...

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