Project Euler #17

euler17.py

def say_digit(n):
    number = ''
    if n == 1:
        number = 'one'
    elif n == 2:
        number = 'two'
    elif n == 3:
        number = 'three'
    elif n == 4:
        number = 'four'
    elif n == 5:
        number = 'five'
    elif n == 6:
        number = 'six'
    elif n == 7:
        number = 'seven'
    elif n == 8:
        number = 'eight'
    elif n == 9:
        number = 'nine'
    return number

def say_ten(n):
    number = ''
    if n == 20:
        number = 'twenty'
    elif n == 30:
        number = 'thirty'
    elif n == 40:
        number = 'forty'
    elif n == 50:
        number = 'fifty'
    elif n == 60:
        number = 'sixty'
    elif n == 70:
        number = 'seventy'
    elif n == 80:
        number = 'eighty'
    elif n == 90:
        number = 'ninety'
    return number

def say_teen(n):
    number = ''
    if n == 10:
        number = 'ten'
    elif n == 11:
        number = 'eleven'
    elif n == 12:
        number = 'twelve'
    elif n == 13:
        number = 'thirteen'
    elif n == 14:
        number = 'fourteen'
    elif n == 15:
        number = 'fifteen'
    elif n == 16:
        number = 'sixteen'
    elif n == 17:
        number = 'seventeen'
    elif n == 18:
        number = 'eighteen'
    elif n == 19:
        number = 'nineteen'
    return number

def say(n):
    number = ''
    if n == 1000:
        number = 'onethousand'
        n = 0
    if n >= 100 and n <= 999:
        number = say_digit(n / 100) + 'hundred'
        n = n % 100
        if n > 0:
            number = number + 'and'
    if n >= 20 and n < 100:
        number = number + say_ten(n - n % 10)
        n = n - n / 10 * 10
    if n >= 10 and n < 20:
        number = number + say_teen(n)
    if n < 10:
        number = number + say_digit(n)
    return number

print sum(len(say(i)) for i in range(1, 1001))