为什么json.loads()在某些字符串上起作用? [英] Why does json.loads() work on some strings?

问题描述

我有一个json1中所示的JSON字符串.我正在尝试将其解析为JSON，但似乎无法正常工作.怎么了?

I've a JSON string like the one shown in json1. I'm trying to parse this as a JSON but it doesnt seem to work. What is going wrong?

import json

string1 = "[]"
list1 = "['hi','bye']"
json1 = "{'genre': ['Action', 'Comedy']}"

print json.loads(string1)
print json.loads(list1)
print json.loads("{'genre': ['Action', 'Comedy']}")

这给了我错误

Traceback (most recent call last):
  File "python", line 8, in <module>
ValueError: No JSON object could be decoded

推荐答案

json需要双引号的字符串，而您有单引号的字符串.您可以使用ast.literal_eval:

json expects double quoted strings, you have single-quoted strings. You can load your strings using ast.literal_eval:

import ast
print(ast.literal_eval("{'genre': ['Action', 'Comedy']}"))

结果:

{'genre': ['Action', 'Comedy']}

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