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comparison bitsyauth/dictionary.py @ 41:d4522af2c6e5

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refactor
author Jeff Hammel <jhammel@mozilla.com>
date Sat, 28 Dec 2013 12:56:06 -0800
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40:cb1d21648588 41:d4522af2c6e5
1 import random
2
3 class Dictionary(object):
4 def __init__(self, dictionary_file='/usr/share/dict/american-english'):
5 self.dictionary_file = dictionary_file
6 with open(dictionary_file) as f:
7 self.wordlist = []
8 for line in f:
9 line = line.strip()
10 if not line or not line.isalpha():
11 continue
12 line = line.lower()
13 self.wordlist.append(line)
14 self.wordlist = tuple(self.wordlist)
15 self._min_lengths = {}
16
17 def random_word(self, min_length=5):
18 """
19 choose random word
20
21 min_length -- minimum word length
22 """
23
24 if min_length not in self._min_lengths:
25 # cache
26 self._min_lengths[min_lengths] = [i for i in self.wordlist
27 if len(i) > min_length]
28 return random.Random().choice(self._min_lengths[min_length])
29