title: PyQt5.5 and Qt5 licence issue
body: <p>I am trying to install PyQt5.5 but I get this error</p>
  
  <pre><code>Error: This version of PyQt5 and the commercial version of Qt have incompatible licenses.
  </code></pre>
  
  <p>my <code>qtdetail.out</code> give this</p>
  
  <pre><code>Builder Qt
  shared
  </code></pre>
  
  <p>I have installed <code>Qt5.5 open source</code> version.</p>
  
  <p>Any idea how to install this correctly?</p>