def __init__(self, *args, **kwargs):
        super(ThreadWorker, self).__init__(*args, **kwargs)
        self.worker_connections = self.cfg.worker_connections
        self.max_keepalived = self.cfg.threads - self.cfg.worker_connections
        # initialise the pool
        self.tpool = None
        self.poller = None
        self._lock = None
        self.futures = deque()
        self._keep = deque()
        self.nr_conns = 0
dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/gunicorn/workers/gthread.py/ThreadWorker.__init__/swapped operands of `-`