Pyppeteer is an unofficial Python port of the JavaScript-based Puppeteer library, used for web browser automation. It allows users to automate interactions with web browsers, perform web scraping, and handle dynamic content using Python, leveraging the Chrome DevTools Protocol for headless browser control. This comprehensive tutorial covers installation, usage scenarios, and code examples for automating web tasks such as clicking buttons, printing PDF files, managing cookies, handling alerts and iFrames, and taking screenshots. It also discusses the differences between Pyppeteer and Puppeteer, highlighting the Python library's use of asyncio for asynchronous operations while Puppeteer utilizes JavaScript promises. Despite being last updated in 2022, Pyppeteer remains popular in the QA community for its ability to integrate with testing frameworks like pytest and run tests on both local and cloud-based infrastructures such as LambdaTest, which enables parallel testing across multiple browser versions.