[Python] Create a 3D surface plot in Plotly

I want to create a 3D surface plot in Plotly by reading the data from an external file. Following is the code I am using:

import numpy as np
import plotly.graph_objects as go
import plotly.express as px


data = np.genfromtxt('values.dat', dtype=float)

# The shape of X, Y and Z is (10,1)
X = data[:,0:1]
Y = data[:,1:2]
Z = data[:,2:3]

fig = go.Surface(x=X, y=Y, z=Z, name='Surface plot', colorscale=px.colors.sequential.Plotly3)
plot(fig)


The above code does not produce any surface plot. What changes has to be made to create a surface plot?

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