method to transform number strings to finnish

gistfile1.py

# -*- coding: utf-8

numbers = (u'nolla',u'yksi',u'kaksi',u'kolme',u'neljä',u'viisi',u'kuusi',u'seitsemän',u'kahdeksan',u'yhdeksän',u'kymmenen')
suffixes = ((u'toista',u'kymmentä'), (u'sata',u'sataa'))
exponents = ((u'',u''), (u'tuhat',u'tuhatta'), (u'miljoona','miljoonaa'))

def ones(n, s):
    if s == 0 or n == 1:
        return u''
    return numbers[s]

def tens(n, s):
    if n == 0:
        return u''
    if n == 1 and s == 0:
        return numbers[10]
    elif n == 1:
        return numbers[s] + suffixes[0][0] 
    else:
        return numbers[n] + suffixes[0][1]

def hundreds(c):
    if c == 0:
        return u''
    return numbers[c] + suffixes[1][1] if c > 1 else suffixes[1][0] 

def thousands(index, c, n, s):
    if c == 0 and n == 0 and s == 0:
        return u''
    elif index != 0 and c == 0 and n == 0 and s == 1:
        return exponents[index][0]
    else:
        return hundreds(c) + tens(n, s) + ones(n, s) + exponents[index][1]

def partition(l, n):
    for i in range(0, len(l), n):
        yield l[i:i+n]

def pad(number, n):
    return "0" * (n - len(number) % n) + number

def say(number):
    if len(number) == 1:
        global numbers
        return numbers[int(number)]
    converted = [int(n) for n in pad(number, 3)]
    count = len(converted) / 3 - 1
    return ''.join([thousands(count - index, *parts) for index, parts in enumerate(partition(converted, 3))])


print [say(s) for s in ["0", "2", "1", "10", "315", "94101", "1024", "1529933", "20203"]]