Question

我收到了Foursquare的回复，内容如下：

response: {
    suggestedFilters: {},
    geocode: {},
    headerLocation: "Harlem",
    headerFullLocation: "Harlem",
    headerLocationGranularity: "city",
    query: "coffee",
    totalResults: 56,
    suggestedBounds: {},
    groups: [{
                type: "Recommended Places",
                name: "recommended",
                items: [{
                            reasons: {
                                count: 1,
                                items: [{
                                    summary: "You've been here 6 times",
                                    type: "social",
                                    reasonName: "friendAndSelfCheckinReason",
                                    count: 0
                                }]
                            },
                            venue: {
                                id: "4fdf5edce4b08aca4a462878",
                                name: "The Chipped Cup",
                                contact: {},
                                location: {},
                                categories: [],
                                verified: true,
                                stats: {},
                                url: "http://www.chippedcupcoffee.com",
                                price: {},
                                hasMenu: true,
                                rating: 8.9,
                                ratingColor: "73CF42",
                                ratingSignals: 274,
                                menu: {},
                                allowMenuUrlEdit: true,
                                beenHere: {},
                                hours: {},
                                photos: {},
                                venuePage: {},
                                storeId: "",
                                hereNow: {}
                            },
                            tips: [],
                            referralId: "e-0-4fdf5edce4b08aca4a462878-0"
                        },

]

如果我键入以下内容：

for value in json_data['response']['groups'][0]:
print(value['name'])

我得到一个TypeError：字符串索引必须是整数

我只是想知道如何遍历此响应以获取商家名称。

由于

Answer 1

你太过分了。 [0]是组的第一个元素

for value in json_data['response']['groups']

或者您需要使用json.loads函数

从字符串中实际解析JSON数据

另外，我认为你想要

value['venue']['name']

Answer 2

json_data['response']['groups'][0]是一本字典。当你遍历一个字典时，你正在迭代一个键列表，所有键都是字符串......所以在循环中，value是一个字符串。

所以当你要求value['name']时，你试图用['name']索引字符串，这没有任何意义，因此错误。

我认为你的意思是：

for value in json_date['response']['groups']

迭代通过python中的json对象

2 个答案: