Duplicate callback outputs don't work even with allow_duplicate=True

Dash Python
24

Yeah, Dash has to identify some sort of key for the callbacks.

I think this may or may not continue, I dont know with the expansion of duplicate outputs if it makes sense to have this glitch. :smiley:

25

What exactly do you mean by this? If I have several callbacks, all with the same Input/Output, I can set allow_duplicates=True for the Outputs but it will still throw an error for duplicate Outputs. How can I then modify the Inputs (which are supposly the cause) with some id to make them unique?

26

ah well, I got it. I just added something like:
Input("random unique component", "id")
to the callback.
It’s a bit tricky, because the error message indicates that die Outputs are duplicated, when really the Inputs are the problem…

1 Like
27

Correct,

It has to do with the creation of the serialization for a key identifier of the function. Only inputs are considered during the serialization process.