def __init__(self, package, version):
        """Construct a new requirement.

        :param package: the package name.
        :param version: a semver compatible version specification.
        """
        self.package = package
        self.version = version
        if self.version and not re.match(r"[<=>~]", version[:2]):
            self.version = "=={}".format(self.version)
def setUp(self):
        if os.getenv("UNLOCK_SEED") is None or os.getenv("UNLOCK_SEED").lower() == "false":
            self.rng_state = torch.get_rng_state()
            torch.manual_seed(0)
            if torch.cuda.is_available():
                torch.cuda.manual_seed_all(0)
            random.seed(0)