Flask is a minimal Python framework for writing web applications. It provides regex-based URL routing, templating via Jinja2, and request/response handling. Additional functionality is provided via extensions (e.g., ORM via Flask-SQLAlchemy). Because of its minimalism and flexibility, Flask is popular for writing API endpoints for larger applications.
There are a few reasons why you might want to use Flask for a website project:
- Flask contains an extensive range of features that aid web development.
- Flask is well documented.
- It is comparatively easy to get a web application set up with Flask. It only takes a few lines of code to start rendering a HTML template.
- Kyle Mahan's Red Wind is built on Flask
- fluffy's Publ is built on Flask
- capjamesg uses Flask for many of his IndieWeb projects, including his webmention receiver and Micropub endpoint.
- IndieWeb Search, whose development is led by capjamesg uses two Flask apps: one for the public web application and another for interfacing with the Elasticsearch server on which the engine is based.