title: how to disable a nosetest plugin
body: <p>I don't want a coverage report so I uninstalled 'pip uninstall coverage' plugin.  However I still get an error saying: </p>
  
  <pre><code>nose.plugins.cover: ERROR: Coverage not available: unable to import coverage module
  </code></pre>
  
  <p>How do I disable the calling of this plugin, or any other plugin for that matter.  Is there a list of enabled plugins that I can edit, or some api I can call to disable it?</p>
  
  <p>Thanks.</p>