code: def main():
      
  
      # Parse arguments and configure application instance.
      arguments, parser = parse_arguments()
  
      # Start iterating
      store = RevisionStore()
      sys.stdout.write("Iterating over %d items.\n" % arguments.number)
  
      for i in xrange(arguments.number):
          key = chr(65 + (i % 26))
          value = [key * (i % 26), key * (i % 13), key * (i % 5)]
  
          store.add(key, value)
  
      # Wait for an enter
      if arguments.pause:
          sys.stdout.write("Done!")
          sys.stdin.readline()
docs: Run a benchmark for N items. If N is not specified, take 1,000,000 for N.