title: Python 3 XML Canonicalization
body: <p>In Python 3, I need to Canonicalize (c14n) an XML string.</p>
  
  <p>Which module/package can I use for this? And how should I do this?</p>
  
  <p>For reference: <a href="http://www.w3.org/TR/xml-exc-c14n/" rel="nofollow noreferrer">http://www.w3.org/TR/xml-exc-c14n/</a></p>