Python - Selenium Architecture

Selenium Architecture: In Selenium with Python, the automation starts from the Python script where test cases are written using Selenium APIs. These commands are handled by Python bindings, which send them as JSON over HTTP to the WebDriver. The WebDriver (like ChromeDriver) acts as a bridge, listening on a local port and converting these commands into browser-specific actions. The browser then executes these actions on the web application, and the response is sent back to the script. This layered architecture enables cross-browser automation and scalability. Virtual Environment: A virtual environment is used to isolate dependencies for each project. It ensures that different projects can use different versions of libraries like Selenium or pytest without conflicts. By using a requirements.txt file, all dependencies can be pinned, ensuring that the same setup can be recreated across different systems, making automation reliable and maintainable.