old_contents: #!/usr/bin/env python3
  # -*- coding: utf-8 -*-
  
  """
  Make statistics on score files (stored in JSON files).
  """
  
  import matplotlib.pyplot as plt
  import numpy as np
  
  fig, ax1 = plt.subplots(nrows=1, ncols=1, figsize=(8, 6))
  
  x = np.arange(-10, 10, 0.1)
  y = np.power(x, 2.)
  
  ax1.plot(x, y)
  
  # Save file and plot ########
  
  output_file = "save_without_borders.png"
  
  plt.savefig(output_file, bbox_inches='tight')
  plt.show()
  
new_contents: #!/usr/bin/env python3
  # -*- coding: utf-8 -*-
  
  import matplotlib.pyplot as plt
  import numpy as np
  
  fig, ax1 = plt.subplots(nrows=1, ncols=1, figsize=(8, 6))
  
  x = np.arange(-10, 10, 0.1)
  y = np.power(x, 2.)
  
  ax1.plot(x, y)
  
  # Save file and plot ########
  
  output_file = "save_without_borders.png"
  
  plt.savefig(output_file, bbox_inches='tight')
  plt.show()
  
subject: Remove an useless comment.