import os
      import sys
      import time
      import string
      import argparse
      import itertools

      def createWordList(chrs, min_length, max_length, output):
      """
      :param `chrs` is characters to iterate.
      :param `min_length` is minimum length of characters.
      :param `max_length` is maximum length of characters.
      :param `output` is output of wordlist file.
      """
      if min_length > max_length:
      print ("[!] Please `min_length` must smaller or same as with `max_length`")
      sys.exit()

      if os.path.exists(os.path.dirname(output)) == False:
      os.makedirs(os.path.dirname(output))

      print ('[+] Creating wordlist at `%s`...' % output)
      print ('[i] Starting time: %s' % time.strftime('%H:%M:%S'))

      output = open(output, 'w')

      for n in range(min_length, max_length + 1):
      for xs in itertools.product(chrs, repeat=n):
      chars = ''.join(xs)
      output.write("%s\n" % chars)
      sys.stdout.write('\r[+] saving character `%s`' % chars)
      sys.stdout.flush()
      output.close()

      print ('\n[i] End time: %s' % time.strftime('%H:%M:%S'))


      if __name__ == '__main__':
      parser = argparse.ArgumentParser(
      formatter_class=argparse.RawTextHelpFormatter,
      description='Python Wordlist Generator')
      parser.add_argument(
      '-chr', '--chars',
      default=None, help='characters to iterate')
      parser.add_argument(
      '-min', '--min_length', type=int,
      default=1, help='minimum length of characters')
      parser.add_argument(
      '-max', '--max_length', type=int,
      default=2, help='maximum length of characters')
      parser.add_argument(
      '-out', '--output',
      default='output/wordlist.txt', help='output of wordlist file.')

      args = parser.parse_args()
      if args.chars is None:
      args.chars = string.printable.replace(' \t\n\r\x0b\x0c', '')
      createWordList(args.chars, args.min_length, args.max_length, args.output)
    

usage: wgen.py [-h] [-chr CHARS] [-min MIN_LENGTH] [-max MAX_LENGTH]
      [-out OUTPUT]

      Python Wordlist Generator
      optional arguments:
      -h, --help            show this help message and exit
      -chr CHARS, --chars CHARS
      characters to iterate
      -min MIN_LENGTH, --min_length MIN_LENGTH
      minimum length of characters
      -max MAX_LENGTH, --max_length MAX_LENGTH
      maximum length of characters
      -out OUTPUT, --output OUTPUT
      output of wordlist file.
    

$ python3 wgen.py -chr=abc -min=1 -max=4 -out=output/wordlist.txt
      $ python3 wgen.py -chr=a1B2c3D4e5 -min=4 -max=6 -out=output/wordlist.txt