如何从fql查询创建列表？

Question

我有一个从FQL查询返回的情况如下：

posts_fql = graph.fql({'posts':"SELECT uid, name, pic, username FROM user WHERE is_app_user=1 AND uid IN (SELECT uid2 FROM friend WHERE uid1 = me())"})  
print ast.literal_eval(json.dumps(posts_fql)) 


    [ 
    { 
    'fql_result_set': [ 
     { 
     'username': 'sahithi.akasapu', 
     'pic': 'http://profile.ak.fbcdn.net/hprofile-ak-ash3/173521_1033451070_925702476_s.jpg', 
     'uid': 1033451070, 
     'name': 'Sahithi Akasapu' 
     }, 
     { 
     'username': 'joe.kaster.73', 
     'pic': 'http://profile.ak.fbcdn.net/static-ak/rsrc.php/v1/yh/r/C5yt7Cqf3zU.jpg', 
     'uid': 100004855536430, 
     'name': 'Joe Kaster' 
     } 
    ], 
    'name': 'posts' 
    } 
] 

我试图用从它建立在Python列表：

user_list= [] 
for user in posts_fql: 
    uid = user['fql_result_set'][0]['uid'] 
    username = user['fql_result_set'][0]['username'] 
    name = user['fql_result_set'][0]['name'] 
    pic = user['fql_result_set'][0]['pic'] 
    user_list.append([uid, username, name, pic]) 

当我打印USER_LIST，只有第一套的数据（用于'用户测试'）被打印。我怎样才能解决这个问题？

Answer 1

因为你有错误的数据结构。 fql_result_set在用户列表之外。有云：

posts_fql = [{ 'fql_result_set' : [{user_dict1}, {user_dict2}] }] 

所以，你真正想要的是：

user_list= [] 
for user in posts_fql[0]['fql_result_set']: 
    uid = user['uid'] 
    username = user['username'] 
    name = user['name'] 
    pic = user['pic'] 
    user_list.append([uid, username, name, pic])