title: How to make my Python unit tests to import the tested modules if they are in sister folders?
body: <p>I am still getting my head around the <code>import</code> statement. If I have 2 folders in the same level:</p>
  
  <ol>
  <li>src</li>
  <li>test</li>
  </ol>
  
  <p>How to make the <code>py</code> files in <code>test</code> import the modules in <code>src</code>?
  Is there a better solution (like put a folder inside another?)</p>