Python Framework Guides
Each one of the language guides will take you through creating and deploying a simple application.
If you don’t see a framework supported here that you’d like to run on Fly.io, tell us in the Community.
Run a FastAPI app
FastAPI is a modern, fast (high-performance), web framework for building APIs with Python based on standard Python type hints.
Run a Flask App
Flask is a lightweight WSGI web application framework. It is designed to make getting started quick and easy, with the ability to scale up to complex applications.
Run a Streamlit app
Streamlit turns data scripts into shareable web apps in minutes. All in pure Python. No front‑end experience required.