title: Is &#x10; a valid character in XML?
body: <p>On this data:</p>
  
  <pre><code>&lt;row Id="37501" PostId="135577" Text="...uses though.&amp;#x10;"/&gt;
  </code></pre>
  
  <p>I'm getting an error with the Python sax parser:</p>
  
  <pre><code>xml.sax._exceptions.SAXParseException:
  comments.xml:29776:332: reference to invalid character number
  </code></pre>
  
  <p>I trimmed the example; 332 points to "&amp;<b></b>#x10;".</p>
  
  <p>Is the parser correct in rejecting this character?</p>