title: python setup.py create empty directory on installation
body: <p>I'm trying to create an empty directory when distributing my python package on Ubuntu machines.</p>
  
  <p>What I did so far is to add the following line to setup object under <code>setup.py</code>:</p>
  
  <pre><code>data_files=[('opt/my_project', [])
  </code></pre>
  
  <p>Which is not working. I thought it's because there are no files in it so I tried this:</p>
  
  <pre><code>data_files=[('opt/my_project', ['empty.txt'])
  </code></pre>
  
  <p>Unfortunately nothing happens in <code>opt</code> directory during installation. Also - there are no error messages.</p>
  
  <p>What is the proper way to create an empty directory?</p>