[从2.7升级到3.6时，python request.post错误

Question

我有用于将帖子发送到AWS API网关的代码

payload = {"thing-name": thing_name, "thing-name-sig": sig}
r = requests.post(api_gw, data=payload)

api网关返回：方法已完成，状态：415

用于未知媒体

当我将python从2.7升级到3.6时问题开始了>

代码以这种方式工作：

payload = {"thing-name": thing_name, "thing-name-sig": sig}
r = requests.post(api_gw, data=json.dumps(payload))
它正常工作，但是一旦我升级到3.6，python编译器就开始给我这个错误：

TypeError：“字节”类型的对象不可JSON序列化

所以我必须将其更改为data=payload以使其通过python编译器，但随后它无法通过api网关，并返回状态为415的已知媒体错误。

所以有两种解决方案：

1-是我如何找到一种在python 3.6中而不是dict JSON可序列化对象发送JSON字符串数据格式的方法。我不能。

2-某些如何使aws服务的api网关能够接受python request.post发送的dict JSON可序列化对象。这也做不到：（

这里有任何帮助。

我尝试过：

payload = {"thing-name": thing_name, "thing-name-sig": sig}
r = requests.post(api_gw, json=payload)
它返回了该故障：

Traceback (most recent call last):
  File "emon-device.py", line 154, in <module>
    r = requests.post(api_gw, json=payload)
  File "/home/ec2-user/.local/lib/python3.6/site-packages/requests/api.py", line                             116, in post
    return request('post', url, data=data, json=json, **kwargs)
  File "/home/ec2-user/.local/lib/python3.6/site-packages/requests/api.py", line                             60, in request
    return session.request(method=method, url=url, **kwargs)
  File "/home/ec2-user/.local/lib/python3.6/site-packages/requests/sessions.py",                             line 519, in request
    prep = self.prepare_request(req)
  File "/home/ec2-user/.local/lib/python3.6/site-packages/requests/sessions.py",                             line 462, in prepare_request
    hooks=merge_hooks(request.hooks, self.hooks),
  File "/home/ec2-user/.local/lib/python3.6/site-packages/requests/models.py", l                            ine 316, in prepare
    self.prepare_body(data, files, json)
  File "/home/ec2-user/.local/lib/python3.6/site-packages/requests/models.py", l                            ine 466, in prepare_body
    body = complexjson.dumps(json)
  File "/usr/lib64/python3.6/json/__init__.py", line 231, in dumps
    return _default_encoder.encode(obj)
  File "/usr/lib64/python3.6/json/encoder.py", line 199, in encode
    chunks = self.iterencode(o, _one_shot=True)
  File "/usr/lib64/python3.6/json/encoder.py", line 257, in iterencode
    return _iterencode(o, 0)
  File "/usr/lib64/python3.6/json/encoder.py", line 180, in default
    o.__class__.__name__)
TypeError: Object of type 'bytes' is not JSON serializable

[我有用于将帖子发送到AWS API网关有效负载的代码= {“ thing-name”：事物名称，“ thing-name-sig”：sig} r = request.post（api_gw，data = payload） api网关返回：方法...

Answer 1

尝试一下：