text: import argparse
  import sys
  import subprocess
  import os
  
  #dependencia:
  #apt-get install steghide
  
  parser = argparse.ArgumentParser(description="Steghide is a steganography program that is able to hide data in "
                                               "various kinds of image- and audio-files. The color- respectivly "
                                               "sample-frequencies are not changed thus making the embedding resistant "
                                               "against first-order statistical tests.")
  
  
  subparsers = parser.add_subparsers()
  
  parser_1 = subparsers.add_parser("extract", help="Extract Method")
  parser_1.add_argument('-sf', type=argparse.FileType("r"), help='Stego File. Archivo stego')
  parser_1.add_argument('-p', help='Password', default="")
  
  
  parser_2 = subparsers.add_parser("embed", help="Embed Method")
  parser_2.add_argument('-cf', '--coverfile', type=argparse.FileType("r"), help='Elegir archivo de portada')
  parser_2.add_argument('-ef', '--embedfile', type=argparse.FileType("r"), help='Elegir archivo para adjuntar')
  parser_2.add_argument('-p', help='Password', default="")
  #
  
  def main():
      if not "-p" in sys.argv:
          c = ["steghide"] + sys.argv[1:] + ["-p"] + [""]
      else:
          c = ["steghide"] + sys.argv[1:]
      subprocess.call(c)
      return 0
  
  
  
  
  if __name__ == "__main__":
      sys.exit(main())