title: ImportError: No module named 'prep_terrain_data'
body: <p>I am trying to execute from prep_terrain_data import makeTerrainData. I get
  "ImportError: No module named 'prep_terrain_data'"</p>
  
  <ul>
  <li>I tried adding "Anaconda_New\Lib\site-packages" path to sys.path as it contains six.</li>
  <li>created <strong>init</strong>.py in all the directories.</li>
  </ul>
  
  <p>But didnt solve the problem. I am using anaconda 3 2.4.0</p>