In the third part of the PyBites Banner Generator article series, the author demonstrates how to automate banner generation using Python libraries Requests and Selenium, with a command-line interface built using Click. The tutorial, with code available on GitHub, explores posting data to a webpage using Requests to generate a banner and retrieve the image by writing the request content to a file. For a more secure approach requiring login, Selenium and the selenium-requests package are employed to handle cookies and request headers, enabling banner creation on a site with restricted access. The code also showcases how to build robust CLI interfaces with Click, offering options for user credentials and banner customization. The article emphasizes the usefulness of these tools in automating tasks and enhancing Python projects, encouraging readers to further explore the featured modules.