CloudEvent equality is incorrect on none attributes about sdk-python HOT 4 OPEN

Can you please point to a specific place where this is stated in the spec? I have a pretty hard time finding this in the spec.

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It is specified only in the JSON format type system mapping I even think we MUST NOT allow None values for attributes. Because it is not a supported attribute type

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Unset attributes MAY be encoded to the JSON value of null

So looks like None is a valid input.

Also, we're talking about JSON representation of the event, not about language-specific representation. IMO, it means that to_json(CloudEvent(attributes={"type": "a", "source": "a", "a": None})) must be == to to_json(CloudEvent({"type": "a", "source":"a"})). But it does not require CloudEvent instances to be equal.

from sdk-python.

Or actually:

from_json(to_json(CloudEvent(attributes={"type": "a", "source": "a", "a": None}))) must be == to from_json(to_json(CloudEvent({"type": "a", "source":"a"})))

So we must be treating JSON representation with null or without a value in the very same way. But it is not required for the instance of CloudEvent.

from sdk-python.