code: def crypt(password, cost=2):
      
  
      salt = _generate_salt(cost)
  
      hashed = pbkdf2.pbkdf2_hex(password, salt, cost * 500)
  
      return "$pbkdf2-256-1$" + str(cost) + "$" + salt.decode("utf-8") + "$" + hashed
docs: Hash a password
  
      result sample:
          $pbkdf2-256-1$8$FRakfnkgpMjnqs1Xxgjiwgycdf68be9b06451039cc\
          0f7075ec1c369fa36f055b1705ec7a
  
      The returned string is broken down into
          - The algorithm and version used
          - The cost factor, number of iterations over the hash
          - The salt
          - The password