https://flask.palletsprojects.com/en/1.1.x/tutorial/

University of Michigan - Ann Arbor

Flask is a Python microframework for web development, focused on giving developers complete control of design decisions through its extensibility. Flask is open source, and has extensive documentation

Flask (Web Framework)

https://flask.palletsprojects.com/en/1.1.x/

Flask Documentation

Flask is a microframework providing simplicity, flexibility, and fine-grained control, allowing developers to choose their own tools. In contrast, Django is a full-featured framework providing an 'all-inclusive' experience out of the box, including an admin panel, database interfaces, an Object-Relational Mapper (ORM), and a pre-defined directory structure.

Django vs Flask

Being a microframework, a flask application is able to be written in something as simple as a single file, for example:
```python
from flask import Flask

app = Flask(__name__)

@app.route('/')
def hello():
    return 'Hello, World!'
```

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