description Flask Stack Overview
Flask is a lightweight Python web framework created by Armin Ronacher and first released in 2010. Built around the Werkzeug web-server toolkit and the Jinja template engine, it provides routing, request handling, templating, and development utilities while leaving many other choices to extensions or application code. It is used for websites, APIs, prototypes, and services that benefit from a small, flexible WSGI foundation.
insights Ranking position
Flask Stack ranks #3 of 166 in the Stack ranking, behind Terraform, ahead of PETAL Stack.
help Flask Stack FAQ
What does Flask include without installing extensions?
Flask provides routing, request and response handling, configuration, development utilities, and Jinja templating. It depends on Werkzeug for WSGI behavior and Click for its command-line interface, but it does not prescribe a database or ORM.
Should a Flask app use Gunicorn or the built-in development server?
The built-in server is intended for local development, not production traffic. Production deployments commonly place Flask behind a WSGI server such as Gunicorn or Waitress, often with a reverse proxy in front.
How is Flask different from Django?
Flask starts with a small core and lets developers choose components for databases, authentication, and administration. Django includes an ORM, migrations, an admin interface, and a larger set of conventions, making it more integrated out of the box.
Can Flask routes use async and await?
Yes, Flask has supported coroutine views since version 2.0 when installed with its async extra. Flask remains a WSGI framework, however, so each request still occupies a worker; Quart or an ASGI framework may be a better fit for heavily asynchronous workloads.
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