title: How to execute the xquery with some python3 library?
body: <p>The content in <code>books.xml </code>:</p>
  <pre><code>&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;
  &lt;books&gt;       
     &lt;book category=&quot;JAVA&quot;&gt;
        &lt;title lang=&quot;en&quot;&gt;Learn Java in 24 Hours&lt;/title&gt;
        &lt;author&gt;Robert&lt;/author&gt;
        &lt;year&gt;2005&lt;/year&gt;
        &lt;price&gt;32.00&lt;/price&gt;
     &lt;/book&gt;      
     &lt;book category=&quot;XML&quot;&gt;
        &lt;title lang=&quot;en&quot;&gt;Learn XPath in 24 hours&lt;/title&gt;
        &lt;author&gt;Jay Ban&lt;/author&gt;
        &lt;year&gt;2010&lt;/year&gt;
        &lt;price&gt;16.50&lt;/price&gt;
     &lt;/book&gt;       
  &lt;/books&gt;
  </code></pre>
  <p>I want to execute the xquery :</p>
  <pre><code>for $x in doc(&quot;books.xml&quot;)/books/book
  where $x/price&gt;30
  return $x/title
  </code></pre>
  <p>How can wrap the xquery with some python3' library ?</p>