Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Python Data Analysis, Second Edition

You're reading from   Python Data Analysis, Second Edition Data manipulation and complex data analysis with Python

Arrow left icon
Product type Paperback
Published in Mar 2017
Publisher Packt
ISBN-13 9781787127487
Length 330 pages
Edition 2nd Edition
Languages
Arrow right icon
Author (1):
Arrow left icon
Ivan Idris Ivan Idris
Author Profile Icon Ivan Idris
Ivan Idris
Arrow right icon
View More author details
Toc

Table of Contents (16) Chapters Close

Preface 1. Getting Started with Python Libraries 2. NumPy Arrays FREE CHAPTER 3. The Pandas Primer 4. Statistics and Linear Algebra 5. Retrieving, Processing, and Storing Data 6. Data Visualization 7. Signal Processing and Time Series 8. Working with Databases 9. Analyzing Textual Data and Social Media 10. Predictive Analytics and Machine Learning 11. Environments Outside the Python Ecosystem and Cloud Computing 12. Performance Tuning, Profiling, and Concurrency A. Key Concepts
B. Useful Functions C. Online Resources

Parsing HTML with Beautiful Soup


Hypertext Markup Language (HTML) is the fundamental technology used to create web pages. HTML is composed of HTML elements that consist of so-called tags enveloped in slanted brackets (for example, <html>). Often, tags are paired with a starting and closing tag in a hierarchical, tree-like structure. An HTML-related draft specification was first published by Berners-Lee in 1991. Initially, there were only 18 HTML elements. The formal HTML definition was published by the Internet Engineering Task Force (IETF) in 1993. The IETF completed the HTML 2.0 standard in 1995. Around 2013, the latest HTML version, HTML5, was specified. HTML is not a very strict standard compared to XHTML and XML.

Modern browsers tolerate a lot of violations of the standard, making web pages a form of unstructured data. We can treat HTML as a big string and perform string operations on it with regular expressions, for example. This approach works only for simple projects.

I have...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime
Banner background image