title: import packege or module with Python
body: <p>I have a project Python organized like that :</p>
  <ul>
  <li>folder 'src'</li>
  <li>folder 'test'</li>
  </ul>
  <p>in my folder src I have a class called Gallery</p>
  <p>How to do an import of this class Gallery in a script in my folder &quot;test&quot; ?</p>
  <p>thank you for your help</p>