Zufälligen String erzeugen

import itertools
import os
import string

def randomString(size = 32):
    chars = set(string.ascii_letters + string.digits)
    charGen = (c for c in itertools.imap(os.urandom, itertools.repeat(1)) if c in chars)
    return "".join(itertools.islice(charGen, None, size))