text: class Other(object):
      def override(self):
          print("OTHER override()")
      def implicit(self):
          print("OTHER implicit()")
      def altered(self):
          print("OTHER altered()")
  class Child(object):
      def __init__(self):
          self.other = Other()
      def implicit(self):
          self.other.implicit()
      def override(self):
          print("CHILD override()")
      def altered(self):
          print("CHILD, BEFORE OTHER altered()")
          self.other.altered()
          print("CHILD, AFTER OTHER altered()")
  son = Child()
  son.implicit()
  son.override()
  son.altered()
  