A simple example Flask app, showing how to use Rollbar (the error tracking service) with Flask.

This example requires Python 3 (or 2.6+), pip, and virtualenv.

virtualenv .venv
source .venv/bin/activate
pip install -r requirements.txt
python hello.py

That will start the server on localhost:5000 .

Or run with gunicorn:

gunicorn hello:app

which will start the server on localhost:8000 .

We tested with the listed versions in requirements.txt, but other versions of flask, blinker, and gunicorn are likely to work as well. Note that blinker is required. gunicorn is only required to run via gunicorn.