rendezvous.py 文件源码

def srand(seed=0):
    # type: (KeyType) -> typing.Generator[int, None, None]
    if isinstance(seed, six.string_types) or isinstance(seed, bytes):
        if isinstance(seed, six.text_type):
            seed = seed.encode('utf-8')
        seed_int = int(hashlib.sha512(seed).hexdigest(), 16)
        seed = typing.cast(int, seed_int)
    rng = random.Random(seed)
    while True:
        yield rng.randint(0, sys.maxsize)