improve pronunciable password generation algorithm

[FrankChen021]

Link

import string
import itertools
import random

initial_consonants = (set(string.ascii_lowercase) - set('aeiou')
                      # remove those easily confused with others
                      - set('qxc')
                      # add some crunchy clusters
                      | set(['bl', 'br', 'cl', 'cr', 'dr', 'fl',
                             'fr', 'gl', 'gr', 'pl', 'pr', 'sk',
                             'sl', 'sm', 'sn', 'sp', 'st', 'str',
                             'sw', 'tr'])
                      )

final_consonants = (set(string.ascii_lowercase) - set('aeiou')
                    # confusable
                    - set('qxcsj')
                    # crunchy clusters
                    | set(['ct', 'ft', 'mp', 'nd', 'ng', 'nk', 'nt',
                           'pt', 'sk', 'sp', 'ss', 'st'])
                    )

vowels = 'aeiou' # we'll keep this simple

# each syllable is consonant-vowel-consonant "pronounceable"
syllables = map(''.join, itertools.product(initial_consonants, 
                                           vowels, 
                                           final_consonants))

# you could trow in number combinations, maybe capitalized versions... 

def gibberish(wordcount, wordlist=syllables):
    return ' '.join(random.sample(wordlist, wordcount))

>>> len(syllables)
5320
>>> gibberish(4)
'nong fromp glosk zunt'
>>> gibberish(5)
'samp nuv fog blew grig'
>>> gibberish(10)
'strot fray hag sting skask stim grun prug spaf mond'