Prepare the environment:
$ virtualenv venv
$ source venv/bin/activate
$ (venv) pip install -r requirements.txt
$ (venv) cp config.dist.py config.py
Then edit config.py with your Twitter credentials and search keyword(s) - comma separated - and run:
$ (venv) python app.py
Based on the idea of mattgu74/TwitterHeatMap and the example from miguelgrinberg/Flask-SocketIO.