Read the Docs

import consul

c = consul.Consul()

# poll a key for updates
index = None
while True:
    index, data = c.kv.get('foo', index=index)
    print data['Value']

# in another process
c.kv.put('foo', 'bar')

pip install python-consul

There's a few API endpoints still to go to expose all features available in Consul v0.5.0. If you need an endpoint that's not in the documentation, just open an issue and I'll try and add it straight away.