如何解决这个“期望值：第 1 行第 1 列（字符 0）”？

Question

请求方法：PATCH

有一个查询字符串参数部分

Answer 1

无法运行您的代码来重现您的错误。在此处查看response 所获得的内容：

r = requests.patch(url, headers=self._construct_header(),data=body)
response = getattr(r,'_content').decode("utf-8")
response_json = json.loads(response)

如果您将无效的 json 传递给 json.loads()，则会出现错误并显示类似消息。

import json

response = b'test data'.decode("utf-8")
print(response)
response_json = json.loads(response)
print(response_json)

输出：

test data
Traceback (most recent call last):
...
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

编辑：

在您的情况下，为避免错误，您需要添加一个 if-else 块。收到回复后，您需要检查您收到的具体内容。

r = requests.patch(url, headers=self._construct_header(),data=body)

# if necessary, check content type
print(r.headers['Content-Type'])

response = getattr(r,'_content').decode("utf-8")

if r.status_code == requests.codes.ok:
    # make sure you get the string "success"
    # if necessary, do something with the string

    return response

else:
    # if necessary, check what error you have: client or server errors, etc.
    # or throw an exception to indicate that something went wrong
    # if necessary, make sure you get the error in json format
    # you may also get an error if the json is not valid

    # since your api returns json formatted error message:
    response_dict = json.loads(response)
    
    return response_dict

在这些情况下，您的函数会返回字符串“success”或带有错误描述的 dict。

用法：

data = { 
    'correct_prediction': 'funny',
    'is_accurate': 'False',
    'newLabel': 'funny',
} 
response = aiservice.update_prediction(data)

if isinstance(response, str):
    print('New Prediction Status: ', response)
else:
    # provide error information
    # you can extract error description from dict