praekelt/vumi — Issue #139: Stopping unstarted metrics is broken.
Author: jerith
Created: 2012-01-19 09:45:00+00:00
State: open

```
Traceback: : 'NoneType' object has no attribute 'stop'
/Users/jerith/.virtualenvs/vumicampaigns/lib/python2.6/site-packages/twisted/internet/defer.py:1039:_inlineCallbacks
/Users/jerith/code/vumi-campaigns/campaigns/common/workers.py:49:teardown_application
/Users/jerith/code/vumi/vumi/blinkenlights/metrics.py:55:stop
```