Exception for callback while creating figure

[cody]

Hi @BMWE

I just link this answer from another thread. It might be useful for you in the future.

The gist is: If you define your Output as a list, you should return back a list.

Cannot get multiple inputs and multiple outputs to work

Welcome @rbw - you’re super close! If you define the callback output as a list @app.callback([Output('kategorie-sls', 'figure')], ...) then the return value must also be a length-1 list like return [go.Figure(data=graph)] or return [{'data': graph}] But if you don’t wrap in a list @app.callback(Output('kategorie-sls', 'figure'), ...) you should also not wrap the return in a list return go.Figure(data=graph) or return {'data': graph}