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Hands-On Web Scraping with Python

You're reading from   Hands-On Web Scraping with Python Perform advanced scraping operations using various Python libraries and tools such as Selenium, Regex, and others

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Product type Paperback
Published in Jul 2019
Publisher Packt
ISBN-13 9781789533392
Length 350 pages
Edition 1st Edition
Languages
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Author (1):
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Anish Chapagain Anish Chapagain
Author Profile Icon Anish Chapagain
Anish Chapagain
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Table of Contents (16) Chapters Close

Preface 1. Section 1: Introduction to Web Scraping FREE CHAPTER
2. Web Scraping Fundamentals 3. Section 2: Beginning Web Scraping
4. Python and the Web – Using urllib and Requests 5. Using LXML, XPath, and CSS Selectors 6. Scraping Using pyquery – a Python Library 7. Web Scraping Using Scrapy and Beautiful Soup 8. Section 3: Advanced Concepts
9. Working with Secure Web 10. Data Extraction Using Web-Based APIs 11. Using Selenium to Scrape the Web 12. Using Regex to Extract Data 13. Section 4: Conclusion
14. Next Steps 15. Other Books You May Enjoy

URL handling and operations with urllib and requests

For our primary motive of extracting data from a web page, it's necessary to work with URLs. In the examples we've seen so far, we have noticed some pretty simple URLs being used with Python to communicate with their source or contents. The web scraping process often requires the use of different URLs from various domains that do not exist in the same format or pattern.

Developers might also face many cases where there will be a requirement for URL manipulation (altering, cleaning) to access the resource quickly and conveniently. URL handling and operations are used to set up, alter query parameters, or clean up unnecessary parameters. It also passes the required request headers with the appropriate values and identification of the proper HTTP method for making requests. There will be many cases where you will find...

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