Mar 3
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All the code used in this video is free and downloadable at https://industry-python.thinkific.com - Free registration required. This is Video 28 of our Beginner Python Tutorial series and the introduction to Module 7, where we move closer to a traditional full-stack Python architecture by integrating Flet with FastAPI. In this video, you’ll get a preview of what we are about to build and, more importantly, why we are building it. We explain how Flet is used to create interactive user interfaces entirely in Python (web, desktop, and mobile) and how FastAPI is used to expose backend logic through API endpoints. While Flet is not a widely recognized framework in hiring pipelines, it is an effective way to learn core Python concepts, UI development, and front-end/back-end integration without requiring HTML, CSS, or JavaScript. FastAPI, on the other hand, represents a modern Python backend framework that is increasingly common in new production applications. To keep the focus on architecture rather than complexity, we build an intentionally simple example: a calculator that sends two numbers from a Flet UI to a FastAPI endpoint, processes the request, and returns the result to be displayed in the interface. Key concepts covered in this module include: Separation of concerns between UI and business logic Front-end and back-end communication using HTTP requests API endpoints and request/response patterns Organizing a Python project for maintainability Preparing for more conventional full-stack Python applications By the end of this module, you’ll understand how a Python UI can communicate with a backend API and how this pattern scales to more realistic applications, even when the example itself is deliberately simple. This video sets the foundation for the hands-on implementation that follows in the rest of Module 7.