如何将字典列表转换为 JSON

Question

我正在尝试对两个 ML 模型进行 A/B 测试，我需要通过 json 将数据解析到模型中。下面是代码

for i in range(100):
    input_data = dict(X_test.iloc[i])
    target = y_test.iloc[i]
    r = requests.post("http://127.0.0.1:8000/api/v1/ddos_classifier/predict?status=ab_testing", input_data)
    response = r.json()
    # provide feedback
    requests.put("http://127.0.0.1:8000/api/v1/mlrequests/{}".format(response["request_id"]), {"feedback": target})

input_data 是字典的形式 代码返回此错误：

JSONDecodeError: Expecting value: line 1 column 1 (char 0)

完整的追溯

JSONDecodeError                           Traceback (most recent call last)
<ipython-input-6-254afd81a7cc> in <module>
      3     target = y_test.iloc[i]
      4     r = requests.post("http://127.0.0.1:8000/api/v1/ddos_classifier/predict?status=ab_testing", input_data)
----> 5     response = r.json()
      6     # provide feedback
      7     requests.put("http://127.0.0.1:8000/api/v1/mlrequests/{}".format(response["request_id"]), {"feedback": target})

c:\users\mark silla\appdata\local\programs\python\python37\lib\site-packages\requests\models.py in json(self, **kwargs)
    896                     # used.
    897                     pass
--> 898         return complexjson.loads(self.text, **kwargs)
    899 
    900     @property

c:\users\mark silla\appdata\local\programs\python\python37\lib\json\__init__.py in loads(s, encoding, cls, object_hook, parse_float, parse_int, parse_constant, object_pairs_hook, **kw)
    346             parse_int is None and parse_float is None and
    347             parse_constant is None and object_pairs_hook is None and not kw):
--> 348         return _default_decoder.decode(s)
    349     if cls is None:
    350         cls = JSONDecoder

c:\users\mark silla\appdata\local\programs\python\python37\lib\json\decoder.py in decode(self, s, _w)
    335 
    336         """
--> 337         obj, end = self.raw_decode(s, idx=_w(s, 0).end())
    338         end = _w(s, end).end()
    339         if end != len(s):

c:\users\mark silla\appdata\local\programs\python\python37\lib\json\decoder.py in raw_decode(self, s, idx)
    353             obj, end = self.scan_once(s, idx)
    354         except StopIteration as err:
--> 355             raise JSONDecodeError("Expecting value", s, err.value) from None
    356         return obj, end

JSONDecodeError: Expecting value: line 1 column 1 (char 0)

可能是什么问题

Answer 1

import json
input_data = json.dumps(dict(X_test.iloc[i]))

然后发布input_data