title: Unable to read XML elements using elementtree with xsd
body: <p>I have a simple XML validated file and I want to extract same elements</p>
  
  <p>This is my XML file:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;lbr xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="lbr.xsd"&gt;
    &lt;book&gt;title1&lt;/book&gt;
    &lt;book&gt;title2&lt;/book&gt;
  &lt;/lbr&gt;
  </code></pre>
  
  <p>I have tried with:</p>
  
  <pre><code>    tree = ET.parse(xmlfi)
      root = tree.getroot()
      for item in root.findall('book'):
          print(item)
  </code></pre>
  
  <p>I expected 2 elements but [] is returned instead</p>