new_contents: #!/bin/env python3
  """
  Encrypt password with salt for unix
  Usage:
      encrypt.py [options] [--sha512 | --sha256 | --md5 | --crypt] [salt] <password>
  
  Options:
      --sha512
      --sha256
      --md5
      --crypt
  """
  
  import sys
  import crypt
  from docopt import docopt
  
  # docopt(doc, argv=None, help=True, version=None, options_first=False))
  
  
  default_flag = {"--sha512":True}
  
  methods = {
          "--sha512" : crypt.METHOD_SHA512,
          "--sha256" : crypt.METHOD_SHA256,
          "--md5" : crypt.METHOD_MD5,
          "--crypt" : crypt.METHOD_CRYPT,
          }
  
  def get_method(opt):
      for key in methods.keys():
          if opt.get(key, False):
              return methods.get(key)
  
  
  def main():
      opt = docopt(__doc__, sys.argv[1:])
  
      method = get_method(opt)
  
      salt = crypt.mksalt(method)
      password = opt.get("<password>")
  
      shadow = crypt.crypt(password, salt)
      print(shadow)
  
  def usage():
      pass
  
  if __name__ == "__main__":
      main()
  
subject: Add shadow password generator