new_contents: """
  One useful class method to override is the built-in __repr__() method, which is short for representation; by providing a return
  value in this method, we can tell Python how to represent an object of our class
  """
  
  class Point3D(object):
      def __init__(self,x,y,z):
          self.x = x
          self.y = y
          self.z = z
      
      def __repr__(self):
          return "(%d, %d, %d)" % (self.x, self.y, self.z)
  
  my_point = Point3D(1,2,3)
  
  print my_point
  
subject: Create repr.py