simple install without ipython and jupyter packages for non-gui environment

[HowcanoeWang]

Is your feature request related to a problem? Please describe. When installing the open3d by pip, several packages are installed like

Installing collected packages: ipython-genutils, tornado, jupyter-core, urllib3, pygments, nbformat, jupyter-client, nbclient, jupyterlab-pygments, prometheus-client, nbconvert, ipykernel, notebook, jupyter-server, nbclassic, jupyterlab-widgets, jupyterlab-server, jupyterlab, jupyter-packaging, ipywidgets

The packages like ipython and jupyter-* related are often unnecessary for non-gui usage, e.g., remote linux server.

Describe the solution you'd like Will it possible to provide an option when installing without ipython & jupyter related packages for command only environment?

For example,

pip install open3d-core
or
pip install open3d-clean
or
pip install open3d-nonvisual

Something like that?

[ssheorey]

Related: #2991

[johnthagen]

Related to:

• 5124

• 5125

• 5740

[johnthagen]

This would also help with these kinds of issues:

• 5747