def __init__(self, exp, queue, payload, worker=None):
        excc = sys.exc_info()[0]

        self._exception = excc
        try:
            self._traceback = traceback.format_exc()
        except __HOLE__:
            self._traceback = None

        self._worker = worker
        self._queue = queue
        self._payload = payload
dataset/ETHPy150Open binarydud/pyres/pyres/failure/base.py/BaseBackend.__init__