old_contents: #! /usr/bin/env python
  
  # Copyright 2020 John Hanley.
  #
  # Permission is hereby granted, free of charge, to any person obtaining a
  # copy of this software and associated documentation files (the "Software"),
  # to deal in the Software without restriction, including without limitation
  # the rights to use, copy, modify, merge, publish, distribute, sublicense,
  # and/or sell copies of the Software, and to permit persons to whom the
  # Software is furnished to do so, subject to the following conditions:
  # The above copyright notice and this permission notice shall be included in
  # all copies or substantial portions of the Software.
  # The software is provided "AS IS", without warranty of any kind, express or
  # implied, including but not limited to the warranties of merchantability,
  # fitness for a particular purpose and noninfringement. In no event shall
  # the authors or copyright holders be liable for any claim, damages or
  # other liability, whether in an action of contract, tort or otherwise,
  # arising from, out of or in connection with the software or the use or
  # other dealings in the software.
  
  def _display_unicode_row(ch: str, n=4):
      line = f'{ch}   ' * n
      print(f"{line}\n  {line}\n{line}\n")
  
  
  hex_horiz = '\u2394'
  hex_pointy = '\u2b21'
  black_horiz = '\u2b23'
  black_pointy = '\u2b22'
  x_super = '\u2093'
  
  
  def display_unicode_example():
      for hex in [hex_horiz, hex_pointy,
                  black_horiz, black_pointy]:
          _display_unicode_row(hex)
  
  
  def _sub(s: str, hx=hex_horiz):
      return s.replace('x', hx)
  
  
  def display_ascii_horiz_height2_example(n=3, reps=4):
      line1 = r'/  \__' * n
      line2 = r'\__/  ' * n
      for i in range(reps):
          print('\n'.join(map(_sub, (line1, line2))))
  
  
  def display_ascii_horiz_height3_example(n=3, reps=4, hex=hex_horiz):
      line1 = (r' /   \  y ' * n).replace('y', x_super)
      line2 = r'(  x  )---' * n
      line3 = r' \___/  . ' * n
      for i in range(reps):
          print('\n'.join((line1, line2, line3)))
  
  
  if __name__ == '__main__':
      display_unicode_example()
      display_ascii_horiz_height2_example()
      display_ascii_horiz_height3_example()
  
new_contents: #! /usr/bin/env python
  
  # Copyright 2020 John Hanley.
  #
  # Permission is hereby granted, free of charge, to any person obtaining a
  # copy of this software and associated documentation files (the "Software"),
  # to deal in the Software without restriction, including without limitation
  # the rights to use, copy, modify, merge, publish, distribute, sublicense,
  # and/or sell copies of the Software, and to permit persons to whom the
  # Software is furnished to do so, subject to the following conditions:
  # The above copyright notice and this permission notice shall be included in
  # all copies or substantial portions of the Software.
  # The software is provided "AS IS", without warranty of any kind, express or
  # implied, including but not limited to the warranties of merchantability,
  # fitness for a particular purpose and noninfringement. In no event shall
  # the authors or copyright holders be liable for any claim, damages or
  # other liability, whether in an action of contract, tort or otherwise,
  # arising from, out of or in connection with the software or the use or
  # other dealings in the software.
  
  def _display_unicode_row(ch: str, n=4):
      line = f'{ch}   ' * n
      print(f"{line}\n  {line}\n{line}\n")
  
  
  hex_horiz = '\u2394'
  hex_pointy = '\u2b21'
  black_horiz = '\u2b23'
  black_pointy = '\u2b22'
  x_super = '\u2093'
  
  
  def display_unicode_example():
      for hex in [hex_horiz, hex_pointy,
                  black_horiz, black_pointy]:
          _display_unicode_row(hex)
  
  
  def _sub(s: str, hx=hex_horiz):
      s = s.replace('a', '\u2597')  # Quadrant lower right
      s = s.replace('b', '\u2596')  # Quadrant lower left
      return s.replace('x', hx)
  
  
  def display_ascii_horiz_height2_example(n=3, reps=4):
      line1 = r'/ab\__' * n
      line2 = r'\__/ab' * n
      for i in range(reps):
          print('\n'.join(map(_sub, (line1, line2))))
  
  
  def display_ascii_horiz_height3_example(n=3, reps=4, hex=hex_horiz):
      line1 = (r' /   \  y ' * n).replace('y', x_super)
      line2 = r'(  x  )---' * n
      line3 = r' \___/  . ' * n
      for i in range(reps):
          print('\n'.join((line1, line2, line3)))
  
  
  if __name__ == '__main__':
      display_unicode_example()
      display_ascii_horiz_height2_example()
      display_ascii_horiz_height3_example()
  
subject: Use quadrant lower left