title: Named Event in Python
body: <p>In python, is there a cross platform way of creating something similar to Windows named Event in one process, and set it from another process to signal something to the first one?</p>
  
  <p>My specific problem is that I need to create a process that on startup will check if any other instances of itself are running, and if so, signal them to quit. With Windows API I would use <code>CreateEvent</code> with the <code>lpName</code> parameter, and <code>SetEvent</code>.</p>