Python-为什么Python无法解析此JSON数据?
我在文件中有此JSON
:
{ "maps": [
{
"id": "blabla",
"iscategorical": "0"
},
{
"id": "blabla",
"iscategorical": "0"
}
],
"masks": [
"id": "valore"
],
"om_points": "value",
"parameters": [
"id": "valore"
]
}
我编写了以下脚本来打印所有JSON
数据:
import jsonfrom pprint import pprint
with open('data.json') as f:
data = json.load(f)
pprint(data)
但是,该程序会引发异常:
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?
回答:
你的数据不是有效的JSON
格式。你有[]
什么时候应该拥有{}
:
[]
用于JSON数组,在Python中称为list
{}
用于JSON对象,在Python中称为dict
JSON文件的外观如下:
{ "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:
import jsonfrom pprint import pprint
with open('data.json') as f:
data = json.load(f)
pprint(data)
有了数据,你现在还可以找到类似的值:
data["maps"][0]["id"]data["masks"]["id"]
data["om_points"]
试试看,看看是否有意义。
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