#!/usr/local/bin/python2
from xml.etree.ElementTree import XMLParser

class B:
  def start(*a):
    print 'start'
  def data(*a):
    print 'data'
  def end(*a):
    print 'end'
  def close(*a):
    print 'close'

p = XMLParser(target=B())
p.feed('<a><b>\n</b></a>')
p.close()