Custom PyDeck Tooltip in Panel Application - Fails to Access Data

Good morning,

I’m trying to get a custom tooltip working in a PyDeck map embedded in a Panel application, and am noticing a weird issue where the tooltip data fails to render in the Panel application but shows up just fine in a PyDeck visualization. I’ve put together this simple example in a Jupyter notebook that highlights the issue. In the context of the Panel application, the tooltip HTML is displayed exactly as specified without data being inserted in the {VARIABLE} slots defined in the HTML. Any thoughts on what the disconnect might be here?

Hi @diehl

I’ve reported this as a bug in PyDeck tooltip not working · Issue #4501 · holoviz/panel (

Hi @Marc,

Thanks so much! Good to know that I’m not missing something…

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