I followed the README instructions to install meshviewer.
I activated the virtual environment and after entering 'meshviewer view sphere.obj'
I get : INFO:root:started remote viewer on port 50261
so it looks like it works, but I am not seeing the window or the object
the solution was in another open issue:
sudo apt-get install python3-opengl.
Also you have to specify the path to the object to be displayed as in meshviewer view data/unittest/sphere.obj
I followed the README instructions to install meshviewer. I activated the virtual environment and after entering 'meshviewer view sphere.obj' I get : INFO:root:started remote viewer on port 50261 so it looks like it works, but I am not seeing the window or the object