JSON语法是Python语法的严格子集吗? [英] Is JSON syntax a strict subset of Python syntax?

问题描述

JSON与Python语法非常相似.所有JSON对象都能直接无错误地转换为Python吗?

JSON is very similar to Python syntax. Can all JSON objects directly convert to Python without error?

示例

以下是有效的JSON对象:

The following is a valid JSON object:

// Valid JSON
{"foo":"bar"}

该对象将直接转换为具有键"foo"和值"bar"的Python字典:

This object will directly translate to a Python dictionary with key "foo" and value "bar":

# Python
json_dict = eval('{"foo":"bar"}')

推荐答案

否.特别是true，false和null不是Python，尽管它们在Python中确实具有直接等效项(分别为True，False和None).

No. In particular, true, false, and null are not Python, although they do have direct equivalents in Python (True, False, and None respectively).

// Valid JSON
{"sky_is_blue":true}

但是在Python中使用时...

But when used in Python...

# Python
>>> json_dict = eval('{"sky_is_blue":true}')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<string>", line 1, in <module>
NameError: name 'true' is not defined

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