terminal.py 文件源码

def interval(self, value):
        if isinstance(value, basestring):
            value = convert_to_timedelta(value)
        if isinstance(value, timedelta):
            value = total_seconds(value) * 1000 # PeriodicCallback uses ms
        self._interval = value
        # Restart the PeriodicCallback
        if hasattr(self, '_key_watcher'):
            self._key_watcher.stop()
        self._key_watcher = PeriodicCallback(
            self._timeout_checker, value, io_loop=self.io_loop)