如何在Python中使用json提取數據

我遇到了一個我寫的代碼的問題。當我運行的代碼我得到一個錯誤：如何在Python中使用json提取數據

Traceback (most recent call last): 
File "test23_json_users.py", line 23, in <module> 
for user_dict in abc['user_account']['sip_id']: 
TypeError: list indices must be integers, not str

代碼：

result = '[{"user_account":[{"address":null,"name":null,"country":null,"password":"****","extension":"1112","sip_id":"[email protected]","sip_name":"23001","user_id":7973712,"locked":false,"created":null,"h323_name":"1101","city":null,"email":null,"phone":null,"zip":null},{"address":null,"name":null,"country":null,"password":"****","extension":"1113","sip_id":"[email protected]","sip_name":"23002","user_id":8847075,"locked":false,"created":null,"h323_name":"1102","city":null,"email":null,"phone":null,"zip":null},{"address":null,"name":null,"country":null,"password":"****","extension":"1114","sip_id":"[email protected]","sip_name":"23003","user_id":3680630,"locked":false,"created":null,"h323_name":"1103","city":null,"email":null,"phone":null,"zip":null},{"address":null,"name":null,"country":null,"password":"****","extension":"1115","sip_id":"[email protected]","sip_name":"23004","user_id":136391,"locked":false,"created":null,"h323_name":"1104","city":null,"email":null,"phone":null,"zip":null},{"address":null,"name":null,"country":null,"password":"****","extension":"1116","sip_id":"[email protected]","sip_name":"23005","user_id":5692227,"locked":false,"created":null,"h323_name":"1105","city":null,"email":null,"phone":null,"zip":null},{"address":null,"name":null,"country":null,"password":"****","extension":"1117","sip_id":"[email protected]","sip_name":"23006","user_id":7559026,"locked":false,"created":null,"h323_name":"1106","city":null,"email":null,"phone":null,"zip":null},{"address":null,"name":null,"country":null,"password":"****","extension":"1118","sip_id":"[email protected]","sip_name":"23007","user_id":3226075,"locked":false,"created":null,"h323_name":"1107","city":null,"email":null,"phone":null,"zip":null},{"address":null,"name":null,"country":null,"password":"****","extension":"1119","sip_id":"[email protected]","sip_name":"23008","user_id":6184875,"locked":false,"created":null,"h323_name":"1108","city":null,"email":null,"phone":null,"zip":null},{"address":null,"name":null,"country":null,"password":"****","extension":"1120","sip_id":"[email protected]","sip_name":"23009","user_id":1711112,"locked":false,"created":null,"h323_name":"1109","city":null,"email":null,"phone":null,"zip":null},{"address":null,"name":null,"country":null,"password":"****","extension":"1121","sip_id":"[email protected]","sip_name":"23010","user_id":5383101,"locked":false,"created":null,"h323_name":"1110","city":null,"email":null,"phone":null,"zip":null}]}' 

params = result[result.find('{"'):] 
#print params 
abc = json.loads(params) 

# Here I'm trying to extract just sip_id from the string result using json. 
# I am not able to figure out what went wrong . 
for user_dict in abc['user_account']['sip_id']: 
    print 'usersname : %s' % (user_dict['sip_id'])

來源

2012-06-06 JJ84

當我至REGx ..它工作正常語法中使用re.findall（'（<= \\ 「sip_id \\」使用：\\？「）[A-ZA- Z0-9] + @ [a-zA-Z0-9。] +（？= \\「）'，結果） – JJ84

專業提示：使用'from pprint import pprint'，然後'pprint（abc）'得到更好地感受你的數據結構是什麼樣的。 –

abc['user_account']應該是一個列表。

列表a=['hello',1,2,'people']有4個元素通過索引a[0]到a[3]訪問。

字典d={'a':1,'b':2}有鍵和值。在這種情況下d['a']的值爲1，d[b']有2

如果您要訪問東西abc['user_account']，類型abc['user_account'][42]。如果你想遍歷它

for a in abc['user_account']: 
    print a

來源

2012-06-06 09:18:42 aitchnyu

Cool Works現在好了。我嘗試過：對於abc ['user_account']中的user_dict： print'usersname：％s'％（user_dict ['sip_id']） – JJ84

對不起，我不擅長編輯這段代碼... – JJ84

是否我可以用一行代碼提取出sip id：for user_dict in abc ['user_account'] ['sip_id']：print'usersname：％s'％（user_dict ['sip_id']） – JJ84

變化

for user_dict in abc['user_account']['sip_id']:

到

for user_dict in abc['user_account']:

來源

2012-06-06 09:18:27 iMom0

如何在Python中使用json提取數據

回答

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