The following is the example code I got from here.
How do I hide the ticks on the x-axis in this relative bar chart?
import plotly.graph_objects as go
x = [
["BB+", "BB+", "BB+", "BB", "BB", "BB"],
[16, 17, 18, 16, 17, 18,]
]
fig = go.Figure()
fig.add_bar(x=x,y=[1,2,3,4,5,6])
fig.add_bar(x=x,y=[6,5,4,3,2,1])
fig.update_layout(barmode="relative")
fig.show()