def __init__(self, bind_addr, exiter_class, runner_class):
    super(PailgunService, self).__init__()
    self._logger = logging.getLogger(__name__)
    self._bind_addr = bind_addr
    self._exiter_class = exiter_class
    self._runner_class = runner_class
    self._pailgun = None
Check to see if the data file currently exists
dataset/ETHPy150Open pantsbuild/pants/src/python/pants/pantsd/service/pailgun_service.py/PailgunService.__init__--crossover with--dataset/ETHPy150Open weecology/retriever/engines/xmlengine.py/engine.table_exists