human
Solve the following python programming problem given the following code:
@ gen.coroutine 
def QueryViewpoints(client, obj_store, user_id, device_id, request) : 
    'Queries viewpoint metadata, as well as associated followers and episodes.
  ' 
    @ gen.coroutine 
    def _QueryFollowers() : 
        'Produces list of (followers, last_key) tuples, one for each viewpoint in the request.' 
        tasks = [] 
        for vp_dict in request ['viewpoints'] : 
            if vp_dict.get ('get_followers', False) : 
                start_key = vp_dict.get ('follower_start_key', None) 
                tasks.append (Viewpoint.QueryFollowers (client, vp_dict ['viewpoint_id'], excl_start_key = (int (start_key) if (start_key is not None) else None), limit = limit)) 
else : 
                tasks.append (util.GenConstant (None)) 
follower_results = (yield tasks) 
        raise gen.Return (follower_results) 
@ gen.coroutine 
    def _QueryActivities() : 
        'Produces list of (activities, last_key) tuples, one for each viewpoint in the request.' 
        tasks = [] 
        for vp_dict in request ['viewpoints'] : 
            if vp_dict.get ('get_activities', False) : 
                tasks.append (gen.Task (Viewpoint.QueryActivities, client, vp_dict ['viewpoint_id'], excl_start_key = vp_dict.get ('activity_start_key', None), limit = limit)) 
else : 
                tasks.append (util.GenConstant (None)) 
activity_results = (yield tasks) 
        raise gen.Return (activity_results) 
@ gen.coroutine 
    def _QueryEpisodes() : 
        'Produces list of (episodes, last_key) tuples, one for each viewpoint in the request.' 
        tasks = [] 
        for vp_dict in request ['viewpoints'] : 
            if vp_dict.get ('get_episodes', False) : 
                tasks.append (gen.Task (Viewpoint.QueryEpisodes, client, vp_dict ['viewpoint_id'], excl_start_key = vp_dict.get ('episode_start_key', None), limit = limit)) 
else : 
                tasks.append (util.GenConstant (None)) 
episode_results = (yield tasks) 
        raise gen.Return (episode_results) 
@ gen.coroutine 
    def...

    
    

    Fix the buggy line: logging.info (('QUERY VIEWPOINTS: user: %d, device: %d, %d viewpoints, %d followers, %d activities, %d episodes, %d comments' % (user_id, device_id, len (response_vp_dicts), num_followers, num_activities, zip_list, num_comments)))
assistant
#Here is Python program to fix the buggy line: logging.

logging.info (('QUERY VIEWPOINTS: user: %d, device: %d, %d viewpoints, %d followers, %d activities, %d episodes, %d comments' % (user_id, device_id, len (response_vp_dicts), num_followers, num_activities, num_episodes, num_comments)))