Book Image

Hands-On Web Scraping with Python

By : Anish Chapagain
Book Image

Hands-On Web Scraping with Python

By: Anish Chapagain

Overview of this book

Web scraping is an essential technique used in many organizations to gather valuable data from web pages. This book will enable you to delve into web scraping techniques and methodologies. The book will introduce you to the fundamental concepts of web scraping techniques and how they can be applied to multiple sets of web pages. You'll use powerful libraries from the Python ecosystem such as Scrapy, lxml, pyquery, and bs4 to carry out web scraping operations. You will then get up to speed with simple to intermediate scraping operations such as identifying information from web pages and using patterns or attributes to retrieve information. This book adopts a practical approach to web scraping concepts and tools, guiding you through a series of use cases and showing you how to use the best tools and techniques to efficiently scrape web pages. You'll even cover the use of other popular web scraping tools, such as Selenium, Regex, and web-based APIs. By the end of this book, you will have learned how to efficiently scrape the web using different techniques with Python and other popular tools.
Table of Contents (16 chapters)
Free Chapter
Section 1: Introduction to Web Scraping
Section 2: Beginning Web Scraping
Section 3: Advanced Concepts
Section 4: Conclusion

Scraping Using pyquery – a Python Library

Starting from this chapter, we will be exploring scraping-related tools and techniques, as we will also be deploying some scraping code. Features related to web exploration, Python libraries, element identification, and traversing are the major concepts we have learned about so far.

Web scraping is often a challenging and long process that requires an understanding of how the website is performing. A basic ability to understand and identify the backends or tools that are used to build a website will assist in any scraping task. This is also related to a process known as reverse engineering. For more information on such tools, please refer to Chapter 3, Using LXML, XPath, and CSS Selectors, and the using web browser developer tools for accessing web content section. In addition to this, identifying the tools for traversing and manipulating...