#!/usr/bin/env python # encoding: utf-8 # # Copyright (c) 2010 Doug Hellmann. All rights reserved. # """Count the most common letters in words. """ #end_pymotw_header import collections c = collections.Counter() with open('/usr/share/dict/words', 'rt') as f: for line in f: c.update(line.rstrip().lower()) print 'Most common:' for letter, count in c.most_common(3): print '%s: %7d' % (letter, count)