Update to use builtin hash()

hash2.py

class CArray:
    def __init__(self, size):
        self.size = size
        self.array = [[]] * self.size

    def __setitem__(self, key, value):
        self.array[hash(key) % self.size].append((key, value))

    def __getitem__(self, key):
        for k, v in self.array[hash(key) % self.size]:
            if k is key:
                return v
        return None

import unittest
from functools import reduce

class Bunny:
    def __init__(self, name, age):
        self.name = name
        self.age = age

    def __hash__(self):
        return self.age + reduce(lambda a, x: a + ord(x), self.name, 0)

    def __str__(self):
        return '{} : {}'.format(self.name, self.age)

    def __lt__(self, other):
        return self.name < other.name

class Tester(unittest.TestCase):
    def setUp(self):
        self.ca = CArray(20)
        self.philip = Bunny('Philip', 11)
        self.ca[self.philip] = 'Dave'
        self.ca[Bunny('Steve', 0)] = 'Dave Jr'


    def test_simple(self):
        self.assertEqual('Dave', self.ca[self.philip])

    def test_collision(self):
        self.ca[Bunny('Steve', 6)] = 'James'
        self.assertEqual('Dave', self.ca[self.philip])

if __name__ == '__main__':
    unittest.main()