如何去除Plotly中意外的hover值 Express bar plot, Python

Question

I am using plotly express for creating a horizontal bar plot. After adding hovertamplate , an ugly zero appeared in hover box (always a zero for each element). What is it and how can I get rid of it? Thanks.

fig = px.bar(df, orientation = 'h')

fig.update_traces(hovertemplate = "%{label}, in %{value} drugs")

Answer 1

Solution found here if any one needs it, too:

"...need to add <extra></extra> at the end of the hovertemplate , as here . The <extra> tag is for the second part of the hover, in a different color, where usually the trace name is displayed."