old_contents: # Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
  from __future__ import print_function
  import fixpath
  import colorama
  from colorama import Fore, Back, Style
  from random import randint, choice
  from string import printable
  
  # Fore, Back and Style are convenience classes for the constant ANSI strings that set
  #     the foreground, background and style. The don't have any magic of their own.
  FORES = [ Fore.BLACK, Fore.RED, Fore.GREEN, Fore.YELLOW, Fore.BLUE, Fore.MAGENTA, Fore.CYAN, Fore.WHITE ]
  BACKS = [ Back.BLACK, Back.RED, Back.GREEN, Back.YELLOW, Back.BLUE, Back.MAGENTA, Back.CYAN, Back.WHITE ]
  STYLES = [ Style.DIM, Style.NORMAL, Style.BRIGHT ]
  
  # This assumes your terminal is 80x24. Ansi minimum coordinate is (1,1).
  MINY, MAXY = 1, 24
  MINX, MAXX = 1, 80
  
  # set of printable ASCII characters, including a space.
  CHARS = ' ' + printable.strip()
  
  PASSES = 1000
  
  def main():
      colorama.init()
      # gratuitous use of lambda.
      pos = lambda y, x: '\x1b[%d;%dH' % (y, x)
      # draw a white border.
      print(Back.WHITE, end='')
      print('%s%s' % (pos(MINY, MINX), ' '*MAXX), end='')
      for y in range(MINY, 1+MAXY):
          print('%s %s ' % (pos(y, MINX), pos(y, MAXX)), end='')
      print('%s%s' % (pos(MAXY, MINX), ' '*MAXX), end='')
      # draw some blinky lights for a while.
      for i in range(PASSES):
          print('%s%s%s%s%s' % (pos(randint(1+MINY,MAXY-1), randint(1+MINX,MAXX-1)), choice(FORES), choice(BACKS), choice(STYLES), choice(CHARS)), end='')
      # put cursor to top, left, and set color to white-on-black with normal brightness.
      print('%s%s%s%s' % (pos(MINY, MINX), Fore.WHITE, Back.BLACK, Style.NORMAL), end='')
  
  if __name__ == '__main__':
      main()
  
new_contents: # Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
  from __future__ import print_function
  import fixpath
  import colorama
  from colorama import Fore, Back, Style
  from random import randint, choice
  from string import printable
  
  # Demonstrate printing colored, random characters at random positions on the screen
  
  # Fore, Back and Style are convenience classes for the constant ANSI strings that set
  #     the foreground, background and style. The don't have any magic of their own.
  FORES = [ Fore.BLACK, Fore.RED, Fore.GREEN, Fore.YELLOW, Fore.BLUE, Fore.MAGENTA, Fore.CYAN, Fore.WHITE ]
  BACKS = [ Back.BLACK, Back.RED, Back.GREEN, Back.YELLOW, Back.BLUE, Back.MAGENTA, Back.CYAN, Back.WHITE ]
  STYLES = [ Style.DIM, Style.NORMAL, Style.BRIGHT ]
  
  # This assumes your terminal is 80x24. Ansi minimum coordinate is (1,1).
  MINY, MAXY = 1, 24
  MINX, MAXX = 1, 80
  
  # set of printable ASCII characters, including a space.
  CHARS = ' ' + printable.strip()
  
  PASSES = 1000
  
  def main():
      colorama.init()
      # gratuitous use of lambda.
      pos = lambda y, x: '\x1b[%d;%dH' % (y, x)
      # draw a white border.
      print(Back.WHITE, end='')
      print('%s%s' % (pos(MINY, MINX), ' '*MAXX), end='')
      for y in range(MINY, 1+MAXY):
          print('%s %s ' % (pos(y, MINX), pos(y, MAXX)), end='')
      print('%s%s' % (pos(MAXY, MINX), ' '*MAXX), end='')
      # draw some blinky lights for a while.
      for i in range(PASSES):
          print('%s%s%s%s%s' % (pos(randint(1+MINY,MAXY-1), randint(1+MINX,MAXX-1)), choice(FORES), choice(BACKS), choice(STYLES), choice(CHARS)), end='')
      # put cursor to top, left, and set color to white-on-black with normal brightness.
      print('%s%s%s%s' % (pos(MINY, MINX), Fore.WHITE, Back.BLACK, Style.NORMAL), end='')
  
  if __name__ == '__main__':
      main()
  
subject: Add documentation to demo06.py