如何在Python中使用json提取数据

我遇到了一个我写的代码的问题。当我运行的代码我得到一个错误：如何在Python中使用json提取数据

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

代码：

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'])

来源

2012-06-06 JJ84

当我至REGx ..它工作正常语法中使用re.findall（'（<= \\ “sip_id \\” 使用：\\？“）[A-ZA- Z0-9] + @ [a-zA-Z0-9。] +（？= \\“）'，结果） – JJ84

专业提示：使用'from pprint import pprint'，然后'pprint（abc）'得到更好地感受你的数据结构是什么样的。 –

abc['user_account']应该是一个列表。

列表a=['hello',1,2,'people']有4个元素通过索引a[0]到a[3]访问。

字典d={'a':1,'b':2}有键和值。在这种情况下d['a']的值为1，d[b']有2

如果您要访问东西abc['user_account']，类型abc['user_account'][42]。如果你想遍历它

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

来源

2012-06-06 09:18:42 aitchnyu

Cool Works现在好了。我尝试过：对于abc ['user_account']中的user_dict： print'usersname：％s'％（user_dict ['sip_id']） – JJ84

对不起，我不擅长编辑这段代码... – JJ84

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

变化

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

到

for user_dict in abc['user_account']:

来源

2012-06-06 09:18:27 iMom0

如何在Python中使用json提取数据

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