Python Selenium Architecture Explained with Diagram

Python Selenium automation works by sending commands from a test script through the WebDriver API to browser drivers.

ChromeDriver, GeckoDriver, and EdgeDriver translate those commands and control real browsers like Chrome, Firefox, and Edge.

The browsers then interact with the web application, making Selenium a practical tool for QA and test automation.

Understanding this command flow is useful for debugging, framework design, and interview preparation.