count words with $n letters

count_words.py

#!/usr/bin/python

f = open("input.txt", "ro")
words = f.readline().split(" ")
f.close()

limit = len(max(words, key=len)) + 1

for i in range(1, limit):
        count = 0
        for word in words:
                if len(word) == i:
                        count += 1
        print "%s words with %d letter(s)" %(count, i)