Point cloud cannot be displayed successfully

I use jupyter-lab and cannot successfully show that the point cloud has only a string of prints. I don't know if it is because of the code or because of a problem with the environment of jupyter-lab.
I want to show pointcloud but it just give me like this prints no pointcloud view:

Renderer(camera=PerspectiveCamera(aspect=1.6, fov=90.0, position=(0.008728588931262493, 1.520455745747313, 10.…
HBox(children=(Label(value='Point size:'), FloatSlider(value=0.001, max=0.01, step=1e-05), Label(value='Backgr…

Can you give me some advice,thanks very much.

Start by reproducing the reported point-cloud display in JupyterLab and compare the visible output with the reported Renderer and HBox text. Check whether the issue is in the code or the JupyterLab environment; done means a point-cloud view renders instead of only text.

Written by the indexing model from the issue text.