To set up your development environment, you need pip (included with Python>=2.7.9).

If you don't have it already, install virtualenv:

pip install virtualenv

Then, create a virtual environment in the civic-graph folder:

virtualenv civicenv

Activate the virtual environment with:

.\civicenv\Scripts\activate      # (Windows)
source civicenv/bin/activate     # (Mac/Linux)

Then you can install the required packages with:

pip install -r requirements.txt

Finally, you can run the application on http://localhost:5000:

python run.py