title: Make PyCharm recognize string as path
body: <p>I am working with Python 3.4.</p>
  
  <p>When I use IDLE and start typing, e.g.,</p>
  
  <p><code>my_main_folder = "C:/Us"</code></p>
  
  <p>in the editor window, and then press <code>Ctrl + Space</code>, IDLE offers me all subfolders of <code>C:</code>, and if I press <code>Tab</code>, the string is completed to <code>"C:/Users"</code>.</p>
  
  <p>That means that IDLE (or Python Shell) is able to recognize a string as a path. </p>
  
  <p>How to make PyCharm (Community edition) do that?</p>