io_helpers.py 文件源码

def __init__(self):
        helperBase.__init__(self)
        self.usesPortIORString = None
        self._providesPortDict = {}
        self._processes = {}
        self._STOP_SIGNALS = ((_signal.SIGINT, 1),
                              (_signal.SIGTERM, 5),
                              (_signal.SIGKILL, None))