_ElementInterface instance has no attribute 'tostring'
<p>The code below generates this error. I can't figure out why. If ElementTree has parse, why doesn't it have tostring? <a href="http://docs.python.org/library/xml.etree.elementtree.html#xml.etree.ElementTree.ElementTree" rel="nofollow">http://docs.python.org/library/xml.etree.elementtree.html#xml.etree.ElementTree.ElementTree</a></p>

<pre><code>from xml.etree.ElementTree import ElementTree

...

tree = ElementTree()
node = ElementTree()

node = tree.parse(open("my_xml.xml"))
text = node.tostring()
</code></pre>
