expire_dict.py 文件源码

def __getitem__(self, key, with_age=False):
        """ Return the item of the dict.
        Raises a KeyError if key is not in the map.
        """
        with self.lock:
            try:
                item = OrderedDict.__getitem__(self, key)
            except KeyError:
                raise KeyError(key)

            if not self.key_time_map.get(key, None):
                return item
            item_age = (self.key_time_map[key].get('expire_time', 0)) - time.time()
            if item_age > 0:
                if with_age:
                    return item, item_age
                else:
                    return item
            else:
                del self[key]
                raise KeyError(key)