Mercuro is a non-concurrent, unintelligent, Python-based threaded syslog listener that forwards all its events to a Riemann server.
All interaction with Riemann is handled via the Bernhard library.
You probably shouldn't use Mercuro in production yet, at least until it provides concurrency, forking, and a config file.
See test.py for example use.
This is all you need:
pip install mercuro
Or, if you want to install from source:
git clone https://github.com/briancline/mercuro.git
cd mercuro
sudo python setup.py install