Question

提交请求后，我收到了以下json：

{"type": [
{"ID": "all", "count": 1, "references": [
    { "id": "Boston,MA,02118", "text": "Boston,MA,02118", "val": "Boston,MA,02118", "type": 1 ,"zip": "02118","city": "Boston","state": "MA","lt": "42.3369","lg": "-71.0637","s": ""}
] }
] }

我在变量j中捕获了响应，

>>> j
'{"type": [\r\n\t{"ID": "all", "count": 1, "references": [\r\n\t\t{ "id": "Boston,MA,02118", "text": "Boston,MA,02118", "val": "Boston,MA,02118", "type": 1 ,"zip": "02118","city": "Boston","state": "MA","lt": "42.3369","lng": "-71.0637","s": ""}\r\n\t] }\r\n] }'

我正在尝试解析它：

>>> j['types']
TypeError: string indices must be integers, not str

我做错了什么？

Answer 1

您已获得字典的JSON字符串表示形式。但是你试图将该字符串用作字典。那不会起作用;您需要先使用json模块解析它：

import json
obj = json.loads(j)
obj['types']

（有些库可以包含整个＆＃34;发送请求，获取响应，将主体拉出响应，确保内容类型适合JSON，解析它，引发异常如果出现任何问题＆＃34;对于你。但如果你没有使用它，你就不能跳过任何步骤。）

用python解析嵌套的json

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