title: Calling python setup.py install from another directory
body: <p>I have the following arborescence:</p>
  
  <pre><code>- root_folder &lt;--- I'm here
      - folder
          - setup.py
          - myModule
  </code></pre>
  
  <p>When I run <code>python setup.py install</code> from <code>folder</code>, myModule is installed properly and I can do <code>import myModule</code>.</p>
  
  <p>Howerver, when I run <code>python folder/setup.py install</code> from <code>root_folder</code>, <code>import myModule</code> fails, I have to call <code>import folder.myModule</code>.</p>
  
  <p>How can I call the <code>setup.py</code> script from another folder but keep the root folder to be the folder containing the <code>setup.py</code> file?</p>