I know a little of dom, and would like to learn about ElementTree. Python 2.6 has a somewhat older implementation of ElementTree, but still usable. However, it looks like it comes with two different classes: xml.etree.ElementTree and xml.etree.cElementTree. Would someone please be so kind to enlighten me with their differences? Thank you.
ElementTree is  implemented in python while cElementTree is implemented in C.  Thus cElementTree will be faster, but also not available where you don't have access to C, such as in Jython or IronPython or on Google App Engine.
Functionally, they should be equivalent.
What are the Difference between cElementtree and ElementTree?