Flask
Flask is a lightweight, micro web framework for Python that provides essential tools and libraries for building web applications and APIs. It follows a minimalistic design philosophy, offering core functionality like routing, request handling, and templating, while allowing developers to add extensions for additional features as needed. Flask is known for its simplicity, flexibility, and ease of use, making it popular for small to medium-sized projects and rapid prototyping.
Developers should learn Flask when they need a simple, unopinionated framework for building web applications or RESTful APIs in Python, especially for projects where flexibility and minimal overhead are priorities. It is ideal for startups, prototyping, microservices, and educational purposes due to its straightforward setup and extensive documentation. Use cases include creating blogs, dashboards, or backend services where you want to avoid the complexity of larger frameworks like Django.