def get_random_string(length=12,
                      allowed_chars='abcdefghijklmnopqrstuvwxyz'
                                    'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'):
    if not using_sysrandom:
        # This is ugly, and a hack, but it makes things better than
        # the alternative of predictability. This re-seeds the PRNG
        # using a value that is hard for an attacker to predict, every
        # time a random string is required. This may change the
        # properties of the chosen random sequence slightly, but this
        # is better than absolute predictability.
        random.seed(
            hashlib.sha256(
                ("%s%s%s" % (
                    random.getstate(),
                    time.time(),
                    settings.SECRET_KEY)).encode('utf-8')
                ).digest())
    return ''.join([random.choice(allowed_chars) for i in range(length)])
Return an undirected representation of the digraph.
dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/Django-1.6.10/django/utils/crypto.py/get_random_string--crossover with--dataset/ETHPy150Open networkx/networkx/networkx/classes/tests/timingclasses.py/TimingDiGraph.to_undirected