超出范围的浮点值不符合JSON的Django渲染

snz8szmq  于 2023-02-17  发布在  Go
关注(0)|答案(1)|浏览(151)

我正在使用django-restframework,并且我正在使用JSONRenderer来呈现我的返回响应。
但我总是得到这样的错误:

response = response.render()
  File "C:\Users\Domob\Desktop\dev\venv_bv_crm\lib\site-packages\django\template\response.py", line 106, in render
    self.content = self.rendered_content
  File "C:\Users\Domob\Desktop\dev\venv_bv_crm\lib\site-packages\rest_framework\response.py", line 70, in rendered_content
    ret = renderer.render(self.data, accepted_media_type, context)
  File "C:\Users\Domob\Desktop\dev\venv_bv_crm\lib\site-packages\rest_framework\renderers.py", line 104, in render
    allow_nan=not self.strict, separators=separators
  File "C:\Users\Domob\Desktop\dev\venv_bv_crm\lib\site-packages\rest_framework\utils\json.py", line 25, in dumps
    return json.dumps(*args, **kwargs)
  File "D:\python3\lib\json\__init__.py", line 238, in dumps
    **kw).encode(obj)
  File "D:\python3\lib\json\encoder.py", line 199, in encode
    chunks = self.iterencode(o, _one_shot=True)
  File "D:\python3\lib\json\encoder.py", line 257, in iterencode
    return _iterencode(o, 0)

ValueError: Out of range float values are not JSON compliant

我的主要逻辑代码如下,在我的数据字典中有一些nan值:

class BasicView(viewsets.ModelViewSet):
    queryset = ...
    serializer_class = ...
    filter_backends = ...
    renderer_classes = [JSONRenderer, BrowsableAPIRenderer]
  

   @action(methods=['get'], url_path='dash', detail=False)
    def dashboard(self, request):
        try:
            data = a = [{"k": 1, "v": float('nan')}, {"k": 2, "v": float('inf')}]
            return Response({"data":data})

        except json.decoder.JSONDecodeError:
            print(f"empty result with {request.user.id}")
            return Response(status=status.HTTP_404_NOT_FOUND)

        except:
            import traceback as tb
            print(tb.format_exc())
            return Response(status=status.HTTP_500_INTERNAL_SERVER_ERROR)

我怎样才能得到正确的回答?

weylhg0b

weylhg0b1#

JSON没有NaN的概念,它只能表示表示实际数字的数字(它也没有其他浮点数的概念,如无穷大和负零)。
您必须确保要序列化为JSON的数据中没有NaN浮点数。

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