Flask is a lightweight and popular web framework for Python, known for its simplicity and flexibility. It is widely used to build web applications, providing a minimalistic approach to web development with features like routing, templates, and support for extensions.

A website that uses GraphQL as a query language to manage data fetching and state management. This includes features such as a strongly typed schema, client-side caching, and declarative data fetching to streamline data management and optimize website performance.