title: How to make a copy of xml tree in python using ElementTree?
body: <p>I'm using  xml.etree.ElementTree to parse xml file. I'm parsing xml file in the following way:</p>
  
  <pre><code>import xml.etree.ElementTree as ET
  tree = ET.parse(options.xmlfile)
  root = tree.getroot()
  </code></pre>
  
  <p>This is my xml file:</p>
  
  <pre><code>&lt;rootElement&gt;
      &lt;member&gt;
          &lt;member_id&gt;439854395435&lt;/member_id&gt;
      &lt;/member&gt;
  &lt;/rootElement&gt;
  </code></pre>
  
  <p>Then I'm saving it:</p>
  
  <pre><code>tree.write(options.outcsvfile)
  </code></pre>
  
  <p>How can I make a copy of my tree to produce something like this:</p>
  
  <pre><code>&lt;rootElement&gt;
      &lt;member&gt;
          &lt;member_id&gt;439854395435&lt;/member_id&gt;
      &lt;/member&gt;
      &lt;member&gt;
          &lt;member_id&gt;439854395435&lt;/member_id&gt;
      &lt;/member&gt;
  &lt;/rootElement&gt;
  </code></pre>