old_contents: """module that holds all the levels"""
  
  from widgets import AimLine, BlackHole, GoalPoint, Rocket, Shot, Stars
  
  class First(object):
      def load(self, fling_board):
          goal_point = GoalPoint(pos=(250, 250))
          fling_board.add_widget(goal_point)
          fling_board.goal_points.append(goal_point)
  
  
  levels = [First]
  
new_contents: """module that holds all the levels"""
  
  from widgets import AimLine, BlackHole, GoalPoint, Rocket, Shot, Stars
  
  
  class First(object):
      def load(self, fling_board):
          num_points = 10
          mid_height = fling_board.height / 2.
          start_x = fling_board.width * .3
          end_x = fling_board.width * .7
          step_x = (end_x - start_x) / num_points
          for i in range(num_points):
              i_x = start_x + i * step_x
              goal_point = GoalPoint(pos=(i_x, mid_height))
              fling_board.add_widget(goal_point)
              fling_board.goal_points.append(goal_point)
  
  
  levels = [First]
  
subject: add an appropriate first level