title: AttributeError: 'module' object has no attribute 'mkfifo'
body: <p>I am trying to do Coreference resolution using python. I have downloaded Stanford python wrapper from github and also installed all the required dependencies.</p>
  
  <p>But I get an error at line 170, in start_server:</p>
  
  <pre><code>AttributeError: 'module' object has no attribute 'mkfifo'
  </code></pre>