hexspeak.py

hexspeak.py

def words():
    with open('/usr/share/dict/words', 'r') as f:
        return (x.strip().upper() for x in f.readlines())

MAPPING = {'A':'A', 'B':'B', 'C':'C', 'D':'D',
           'E':'E', 'F':'F', 'O':'0', 'S':'5', 'I':'1'}

def main():
    is_hexword = lambda word: all(ch in MAPPING for ch in word)
    for word in filter(is_hexword, words()):
        print word, "\t", ''.join(MAPPING.get(ch, ch) for ch in word)

if __name__ == '__main__':
    main()