a searchable hash list

hash_list.py

class HashList:
  list = {}

  def add(self, string):
    key = self.get_hash(string)
    while key in self.list:
      key+=1
    self.list[key] = string

  def get_hash(self, string):
    result = 0
    string = string.lower()

    for letter in string:
      value = ord(letter) - 96
      result += value

    result *= 100 * len(string)
    result %= 280000

    return result

  def search(self, string):
    key = self.get_hash(string)
    while key in self.list:
      if self.list[key] == string:
        return key
      key+=1
    return -1

  

hl = HashList()
hl.add('Bach')
hl.add('Goethe')
hl.add('Klitt')
hl.add('Schiller')
hl.add('Shakrespeare')
hl.add('Droste-Hülshoff')
hl.add('Aristoteles')

print(hl.list)
result = hl.search('Klitt')
print(result)