randomstring

randomstring.py

import random
cons='bcdfghjklmnpqrstvwxyz_'
vowel='aeiou'

def f(l):
    if l<=0:
        return ""
    c=random.choice(cons)
    v=random.choice(vowel)
    if c=='_':
        c=v
    return c+v+f(l-1)

randomstring2.py

import random
consj='bdghjkmnprstwy_'
vowel='aeiou'

def g(l):
    if l<=0:
        return ""
    c=random.choice(consj)
    v=random.choice(vowel)
    if c=='_':
        c=v
    w=c+v
    convert={"ti":"tsi", "tu":"tsu", "yi":"", "ye":""}
    if w in convert:
        w=convert[w]
    return w+g(l-1) if len(w) else g(l)