Pedro and Patrick: if you are going to respond by email rather than by typing in the browser box, PLEASE delete the quoted text. Or on occasion, quote a line or two if really necessary, as when responding to a previous message other than the last one. Each message is assumed to be a response to the one immediately preceding, and that message is visible just above yours. This is not like a mail list where previous messages may have come and gone.

In any case, etree.ElementTree is documented as being a stable version F. Lundh's package and I am pretty sure that we are not going to change that by adding things on our own. So continue using your customized subclass.

"See http://effbot.org/zone/element-index.htm for tutorials and links to other docs. Fredrik Lundh’s page is also the location of the development version of the xml.etree.ElementTree.

Changed in version 3.2: The ElementTree API is updated to 1.3. For more information, see Introducing ElementTree 1.3."