Question

我有一个名为obj_1的字典对象，它的值显示如下：

{u'd':{u'results': [{u'Desc':u'This is a description...',
                    u'Title':u'This is a title...',
                     u'data': {u'Url': u'www.site.com'}},

                   {u'Desc':u'This is a description...', 
                    u'Title':u'This is a title...',
                     u'data': {u'Url': u'www.site.com'}}]
}}

这是解码的json（使用requests模块解码器解码）。如何仅提取u'Title'值和URL值？我没有在任何教程中看到过这样的字典类型。

Answer 1

假设你的“obj_1”真的是这样的：

obj_1 = {u'd':{u'results': [{u'Desc':u'This is a description...',
                            u'Title':u'This is a title...'},

                            {u'Desc':u'This is a description...', 
                            u'Title':u'This is a title...'}]
        }}

然后就这么简单：

titles = [d['Title'] for d in obj_1['d']['results']]

Answer 2

>>> obj_1 = {u'd':{u'results': [{u'Desc':u'This is a description...',
...                     u'Title':u'This is a title...',
...                      u'data': {u'Url': u'www.site.com'}},
... 
...                    {u'Desc':u'This is a description...', 
...                     u'Title':u'This is a title...',
...                      u'data': {u'Url': u'www.site.com'}}]
... }}
>>> [(x[u'Title'], x[u'data'][u'Url']) for x in obj_1[u'd'][u'results']]
[(u'This is a title...', u'www.site.com'), (u'This is a title...', u'www.site.com')]

从python字典中提取信息

2 个答案: