iterate over a subset of pronounceable words

pronounceables.py

#!/usr/bin/env python3                                                                                                             

from itertools import count, product, islice, takewhile

def syllables():
    cs = ['b','c','d','f','g','h','j','k','l','m','n','p','q','r','s','t','v','w','x','y','z']
    vs = ['a','e','i','o','u']
    for c in cs:
         for v in vs:
             yield c + v

def pronouncables():
    for i in count(1):
        ps = product(*(syllables() for _ in range(i)))
        yield from (''.join(p) for p in ps)

print(' '.join(takewhile(lambda s: len(s) <= 4, pronouncables())))