You can use Python for test automation because it is a popular and versatile language with a strong worldwide community that has released several packages for test automation. Python's compactness, simplicity, and universality make it an ideal choice for beginners and experienced developers alike. Additionally, Python works well with command-line tools, enabling you to build continuous integration/continuous delivery pipelines. It also supports Selenium, which is one of the most widely used frameworks for testing web applications. Selenium provides a suite of tools, including WebDriver, that allow your test script to interact with web browsers and perform actions. To get started with Python-based automated tests, you need a code editor, Python 3, Selenium's WebDriver for Python, and a driver proxy. You can install these components using the command-line tool on macOS or Linux. Once installed, you can run your tests by saving them in a `.py` file and executing it using the `python3` command. Finally, to test complex applications or run multiple tests in parallel, you can use cloud-based testing platforms like Sauce Labs, which provides a scalable solution for Selenium-based web application testing.