FastAPI also embraces the principle of Dependency Injection (DI) to further streamline application development. DI is a design pattern that separates the creation and management of a dependency from the business logic that uses it.
FastAPI provides a fast, scalable API built on asynchronous programming, while Jinja2 delivers a flexible templating engine to render dynamic HTML pages.
This article explores everything you need to know about __init__.py, from its historical context to modern best practices, advanced usage patterns, and common pitfalls.
