>>> import xml.etree.cElementTree as ET
>>> tree = ET.parse('test.xml')
>>> root = tree.getroot()
>>> dir(root)
['!__reduce__', '__class__', '__copy__', '__deepcopy__', '__delattr__', '__delitem__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__getitem__', '__gt__', '__hash__', '__init__', '__le__', '__len__', '__lt__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__setitem__', '__sizeof__', '__str__', '__subclasshook__', 'append', 'clear', 'find', 'findall', 'findtext', 'get', 'getchildren', 'getiterator', 'insert', 'items', 'keys', 'makeelement', 'remove', 'set']
>>> root.tag
'{http://testnamespace}root'

The tag property is not listed in dir() making ElementTree more difficult to use for those of us with poor memories.