old_contents: import matplotlib.pyplot as plt
  
  from random_walk import RandomWalk
  
  #keep making random walks as long as the program is active
  while True:
      #make arandom walk and plt the points
      rw = RandomWalk()
      rw.fill_walk()
  
      point_numbers = list(range(rw.num_points))
      plt.scatter(rw.x_values, rw.y_values, c=point_numbers, cmap=plt.cm.Blues,
          edgecolor='none', s=15)
  
      #Emphasize the first and last points
      plt.scatter(0, 0, c='green', edgecolor='none', s=100)
      plt.scatter(rw.x_values[-1], rw.y_values[-1], c='red', edgecolor='none',
          s=100)
  
      #remove the axes
      plt.axes().get_xaxis().set_visible(False)
      plt.axes().get_yaxis().set_visible(False)
      
      plt.show()
  
      keep_running = raw_input("Make another walk? (y/n): ")
      if keep_running == 'n':
          break
  
new_contents: import matplotlib.pyplot as plt
  
  from random_walk import RandomWalk
  
  #keep making random walks as long as the program is active
  while True:
      #make arandom walk and plt the points
      rw = RandomWalk(50000)
      rw.fill_walk()
  
      #Plot points and show the plot
      point_numbers = list(range(rw.num_points))
      plt.scatter(rw.x_values, rw.y_values, c=point_numbers, cmap=plt.cm.Blues,
          edgecolor='none', s=1)
  
      #Emphasize the first and last points
      plt.scatter(0, 0, c='green', edgecolor='none', s=100)
      plt.scatter(rw.x_values[-1], rw.y_values[-1], c='red', edgecolor='none',
          s=100)
  
      #remove the axes
      plt.axes().get_xaxis().set_visible(False)
      plt.axes().get_yaxis().set_visible(False)
  
      plt.show()
  
      keep_running = raw_input("Make another walk? (y/n): ")
      if keep_running == 'n':
          break
  
subject: add plot points