Disable hovering on NaN cells

[mmarfat]

It would be great if hovering was disabled on unassigned (empty) cells. For example, when showing a heatmap with data for just one month (2024-03-01 to 2024-03-31):

With the current implementation the empty cells show the raw hovertemplate value. Can this somehow be disabled (or perhaps replaced with an empty value based on condition)?

[JustinAimiable]

I haven't figured out excluding the NaN values piece yet, but since it does export a plotly plot, I was able to iterate over the traces and update the hovertemplate:

for trace in fig.data:
    trace.update(
        hovertemplate=some_template_string
    )