"""
 dictionary.py

 This is take 1, without any collision checking or handling ...
 and so will sometimes do the wrong thing.

 >>> d = Dictionary()
 >>> d.set('name', 'Jim')
 >>> d.set('age', 59)
 >>> d.get('name')
 'Jim'
 >>> d.get('haircolor')
 False
 >>> len(d)
 2

"""

def hash(key):
    """ Return a number ('the hash') of a key  """
    # This one was Cyrus' idea.
    keystring = str(key)
    result = ''
    for symbol in keystring:
        result += str(ord(symbol))
        return int(result)

class Dictionary:
    def __init__(self, size=100):
        self.table_size = size
        self.table = [None]*size
        self.n_entries = 0
    def __len__(self):
        return self.n_entries
    def set(self, key, value):
        index = hash(key) % self.table_size
        self.table[index] = (key, value)
        self.n_entries += 1
    def get(self, key, missing=False):
        index = hash(key) % self.table_size
        result = self.table[index]
        if result:
            return result[1]
        else:
            return missing

if __name__ == '__main__':
    import doctest
    doctest.testmod()