code: def hash_values(values, alg="md5"):
      
      import hashlib
      if alg not in ['md5', 'sha1', 'sha256']:
          raise Exception("Invalid hashing algorithm!")
  
      hasher = getattr(hashlib, alg)
      if type(values) == str:
          output = hasher(values).hexdigest()
      elif type(values) == list:
          output = list()
          for item in values:
              output.append(hasher(item).hexdigest())
      return output
docs: Hash a list of values.