python json转储不从text/html转换 [英] python json dumps not converting from text/html

问题描述

有人可以解释一下为什么它不能从text转换为json以及我需要做些什么以及如何完成它.

Can somebody please explain why its not converting to json from text and what I require to get that done and how to get it accomplished.

>>> import json
>>> import requests
>>> url = 'http://localhost:8000/some/endpoint'
>>> payload = {'some': 'data'}
>>> headers = {'content-type': 'application/json'}
>>> r = requests.post(url, data=json.dumps(payload), headers=headers)
>>> r.headers.get('content-type')
'text/html'
>>>

更新:

使用标头接受为application/json导致我无法解码JSON对象.请帮忙.

With the header accept as application/json lead me to No JSON object could be decoded. Please help..

>>> import json
>>> import requests
>>> url = 'http://localhost:8000/some/endpoint'
>>> payload = {'some': 'data'}
>>> headers = {'content-type': 'application/json','accept':'application/json'}  
>>> r = requests.post(url, data=json.dumps(payload), headers=headers)
>>> r.headers
CaseInsensitiveDict({'date': 'Thu, 13 Jun 2013 01:43:16 GMT', 'content-type':         'text/html', 'server': 'WSGIServer/0.1 Python/2.7.3'})
>>> r.json()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/site-packages/requests-1.2.3-py2.7.egg/requests/models.py",      line 651, in json
return json.loads(self.text or self.content, **kwargs)
File "/usr/lib/python2.7/json/__init__.py", line 326, in loads
 return _default_decoder.decode(s)
File "/usr/lib/python2.7/json/decoder.py", line 366, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/usr/lib/python2.7/json/decoder.py", line 384, in raw_decode
raise ValueError("No JSON object could be decoded")
ValueError: No JSON object could be decoded
>>>

推荐答案

您仅声明请求的内容类型为application/json.您可以尝试使用 accept-header 请求json:

You are only stating that the content type of your request is application/json. You can try requesting json using an accept-header:

headers["Accept"] = "application/json"

，但是如果服务器忽略标题，它将无法为您提供帮助.

but if the server ignores the header it won't help you.

此外，响应内容实际上可能是json，因此r.json()可能有效，并且仅是内容类型标头具有误导性.

Also it is possible that the response content actually is json, so r.json() might work, and it's only the content-type header that is misleading.

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