I ended up doing the following.
class ShadingInfoEncoder(json.JSONEncoder):
def _iterencode(self, o, markers=None):
jsonPlaceholderNames = (("_ShaderInfo", ShaderInfo),
("_ShapeInfo", ShapeInfo),
("_NodeInfo", NodeInfo))
for jsonPlaceholderName, cls in customIterEncode:
if isinstance(o, cls):
yield '{"' + jsonPlaceholderName+ '": '
for chunk in super(ShadingInfoEncoder, self)._iterencode(o, markers):
yield chunk
yield '}'
break
else:
for chunk in super(ShadingInfoEncoder, self)._iterencode(o, markers):
yield chunk
我想这不是最好的方法，但我在这里分享它来看看 如果有人能告诉我我做错了什么，告诉我最好的方法 这个！ 请注意，我使用嵌套元组而不是字典，因为我想 保持它们列出的顺序，这样我就可以-在这个例子中-重写 如果ShaderInfo是继承自的对象，则ShaderInfo将成为\u NodeInfo 节点信息。 我的译码器是按照（简化的和部分的 （代码编号）：
class ShadingInfoDecoder(json.JSONDecoder):
def decode(self, obj):
obj = super(ShadingInfoDecoder,self).decode(s)
if isinstance(obj, dict):
decoders = [("_set",self.setDecode),
("_NodeInfo", self.nodeInfoDecode),
("_ShapeInfo", self.shapeInfoDecode),
("_ShaderInfo", self.shaderInfoDecode)]
for placeholder, decoder in decoders:
if placeholder in obj:
return decoder(obj[placeholder])
else:
for k in obj:
obj[k] = self.recursiveDecode(obj[k])
elif isinstance(obj, list):
for x in range(len(obj)):
obj[x] = self.recursiveDecode(obj[x])
return obj
def setDecode(self, v):
return set(v)
def nodeInfoDecode(self, v):
o = NodeInfo()
o.update(self.recursiveDecode(v))
return o
def shapeInfoDecode(self, v):
o = ShapeInfo()
o.update(self.recursiveDecode(v))
return o
def shaderInfoDecode(self, v):
o = ShaderInfo()
o.update(self.recursiveDecode(v))
return o
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