Run a Python and Selenium-based web scraper in parallel with Selenium Grid and Docker Swarm.
Web scraping is a term used to describe the process of downloading and extracting structured data from the web using a program or algorithm. It’s a useful skill to have when you need to extract data from a website that does not have a public API.
The tutorials and articles on TestDriven teach how to leverage parallelism and concurrency in order to speed up web scrapers that scrape large amounts of data.
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This post looks at how to speed up a Python web scraping and crawling script with multithreading via the concurrent.futures module.