title: Which Python packages offer a stand-alone event system?
body: <p>I am aware of <a href="http://pydispatcher.sourceforge.net/" rel="noreferrer">pydispatcher</a>, but there must be other event-related packages around for Python.</p>
  <p>Which libraries are available?</p>
  <p>I'm not interested in event managers that are part of large frameworks, I'd rather use a small bare-bones solution that I can easily extend.</p>