This is a simple app using Flask, SQLAlchemy and the connecting Flask-SQLAlchemy library.
pip install -r requirements.txt
To run the app, first run the models.py file directly to create the database tables:
$ python models.py
You only need to do this once, unless you change your model definitions (see below).
Then run the app itself:
$ python app.py
Visit http://localhost:5000/ in your browser to see the results.