我在一个文件中有这个 JSON:
{ "maps": [ { "id": "blabla", "iscategorical": "0" }, { "id": "blabla", "iscategorical": "0" } ], "masks": [ "id": "valore" ], "om_points": "value", "parameters": [ "id": "valore" ] }
我编写了这个脚本来打印所有 JSON 数据:
import json from pprint import pprint with open('data.json') as f: data = json.load(f) pprint(data)
但是,该程序引发了一个异常:
Traceback (most recent call last): File "<pyshell#1>", line 5, in <module> data = json.load(f) File "/usr/lib/python3.5/json/__init__.py", line 319, in loads return _default_decoder.decode(s) File "/usr/lib/python3.5/json/decoder.py", line 339, in decode obj, end = self.raw_decode(s, idx=_w(s, 0).end()) File "/usr/lib/python3.5/json/decoder.py", line 355, in raw_decode obj, end = self.scan_once(s, idx) json.decoder.JSONDecodeError: Expecting ',' delimiter: line 13 column 13 (char 213)
如何解析 JSON 并提取其值?
您的数据不是有效的JSON格式。你有[]什么时候应该有{}:
[]
{}
list
dict
这是您的 JSON 文件的外观:
{ "maps": [ { "id": "blabla", "iscategorical": "0" }, { "id": "blabla", "iscategorical": "0" } ], "masks": { "id": "valore" }, "om_points": "value", "parameters": { "id": "valore" } }
然后你可以使用你的代码:
使用数据,您现在还可以找到如下值:
data["maps"][0]["id"] data["masks"]["id"] data["om_points"]
试试这些,看看它是否开始有意义。