old_contents: """Keysmith Default Interface"""
  
  import argparse
  import math
  import os
  import string
  
  import keysmith
  
  
  def cli(parser=None):
      """Parse CLI arguments and options."""
      if parser is None:
          parser = argparse.ArgumentParser(prog=keysmith.CONSOLE_SCRIPT)
      parser.add_argument(
          '-d', '--delimiter',
          help='a delimiter for the samples (teeth) in the key',
          default=' '
      )
      parser.add_argument(
          '-n', '--nteeth', '--nsamples',
          help='the number of random samples to take',
          type=int,
          default=3
      )
      parser.add_argument(
          '-p', '--population',
          help='alphanumeric, default, printable, or a path',
          default='default'
      )
      parser.add_argument(
          '--stats',
          help='statistics for the key',
          default=False,
          action='store_true'
      )
      parser.add_argument(
          '--version',
          action='version',
          version='%(prog)s {0}'.format(keysmith.__version__),
      )
      return parser
  
  
  def main(args=None):
      """Execute CLI commands."""
      if args is None:
          args = cli().parse_args()
      words = {
          'alphanumeric': string.ascii_letters + string.digits,
          'printable': string.printable,
      }.get(args.population)
      if words is None:
          if args.population == 'default':
              args.population = os.path.join(
                  os.path.dirname(os.path.abspath(__file__)),
                  'words.txt'
              )
          with open(args.population, 'r') as f:
              words = f.read().splitlines()
      key = keysmith.generated.key(
          seq=words,
          nteeth=args.nteeth,
          delimiter=args.delimiter
      )
      print(key)
      if args.stats:
          print('=' * len(key))
          print('characters = {characters}'.format(characters=len(key)))
          print('   samples = {nteeth}'.format(nteeth=args.nteeth))
          print('population = {pop}'.format(pop=len(words)))
          print('   entropy {sign} {bits}b'.format(
              sign='<' if len(args.delimiter) < 1 else '~',
              bits=round(math.log(len(words), 2) * args.nteeth, 2)
          ))
  
  
  if __name__ == '__main__':
      main()
  
new_contents: """Keysmith Default Interface"""
  
  import argparse
  import math
  import os
  import string
  
  import keysmith
  
  
  def cli(parser=None):
      """Parse CLI arguments and options."""
      if parser is None:
          parser = argparse.ArgumentParser(prog=keysmith.CONSOLE_SCRIPT)
      parser.add_argument(
          '-d', '--delimiter',
          help='a delimiter for the samples (teeth) in the key',
          default=' ',
      )
      parser.add_argument(
          '-n', '--nteeth', '--nsamples',
          help='the number of random samples to take',
          type=int,
          default=3,
      )
      parser.add_argument(
          '-p', '--population',
          help='alphanumeric, default, printable, or a path',
          default='default',
      )
      parser.add_argument(
          '--stats',
          help='statistics for the key',
          default=False,
          action='store_true',
      )
      parser.add_argument(
          '--version',
          action='version',
          version='%(prog)s {0}'.format(keysmith.__version__),
      )
      return parser
  
  
  def main(args=None):
      """Execute CLI commands."""
      if args is None:
          args = cli().parse_args()
      words = {
          'alphanumeric': string.ascii_letters + string.digits,
          'printable': string.printable,
      }.get(args.population)
      if words is None:
          if args.population == 'default':
              args.population = os.path.join(
                  os.path.dirname(os.path.abspath(__file__)),
                  'words.txt',
              )
          with open(args.population, 'r') as f:
              words = f.read().splitlines()
      key = keysmith.generated.key(
          seq=words,
          nteeth=args.nteeth,
          delimiter=args.delimiter,
      )
      print(key)
      if args.stats:
          print('=' * len(key))
          print('characters = {characters}'.format(characters=len(key)))
          print('   samples = {nteeth}'.format(nteeth=args.nteeth))
          print('population = {pop}'.format(pop=len(words)))
          print('   entropy {sign} {bits}b'.format(
              sign='<' if len(args.delimiter) < 1 else '~',
              bits=round(math.log(len(words), 2) * args.nteeth, 2),
          ))
  
  
  if __name__ == '__main__':
      main()
  
subject: Add trailing commas