python - 重命名 JSON 键名

Question

我收到一个这样的 JSON 对象:

{
    "Question Communicating": "Natural language",
    "interpretation_type": "recognition",
    "output1": "test",
    "Question Learning": "Reinforcement",
    "output2": "test2",
    "output3": "something"
}

我的问题是，是否可以重命名 key 名称: 'outputX'至 'output' .
不知道多少次 'outputX'将在 JSON 中，但我需要将所有输出重命名为 'output' .
所以最终会是这样:

{
    "Question Communicating": "Natural language",
    "interpretation_type": "recognition",
    "output": "test",
    "Question Learning": "Reinforcement",
    "output": "test2",
    "output": "something"
}

Answer 1

不建议尝试在 JSON 对象中使用重复键。您可以看到序列化和反序列化重复键时出现的问题，或者尝试将它们强制放入字典中。不保留重复键。

>>> from json import dumps, loads
>>> json = '{"a": "x", "a": "y"}'
>>> loads(json)
{'a': 'y'}
>>> json = {'a': 'x', 'a': 'y'}
>>> dumps(json)
'{"a": "y"}'
>>> json = {'a': 'x', 'a': 'y'}
>>> json
{'a': 'y'}

相反，您可以尝试将所有以 "output" 开头的键分组。进入列表 ["test", "test2", "something"] .

from json import dumps

d = {
    "Question Communicating": "Natural language",
    "interpretation_type": "recognition",
    "output1": "test",
    "Question Learning": "Reinforcement",
    "output2": "test2",
    "output3": "something"
}

result = {}
for k, v in d.items():
    if k.startswith("output"):
        result.setdefault("output", []).append(v)
    else:
        result[k] = v

print(dumps(result, indent=4))

输出 JSON:

{
    "Question Communicating": "Natural language",
    "interpretation_type": "recognition",
    "output": [
        "test",
        "test2",
        "something"
    ],
    "Question Learning": "Reinforcement"
}