python-library

This is suggested in Gitter chat (Russian room). We have such method for uia_controls.MenuWrapper. But some menus are implemented as toolbar with drop-down submenus. It makes sense to add similar methods to choose such submenu items.

I believe turtle does not handle quads, but our default serialization format for ConjunctiveGraph is turtle as turtle does not override the default for Graph, I guess we should probably change this, question is to what.

I think TriG would make most sense, but the other option is n3.

In las file format, vlrs info is crucial to correctly describe point's spatial location.
However, if you try to use pyntcloud.las_header.vlrs, you wouldn't get anything, the value is alway none.

Through your source code, I can see you try to use
data["las_header"] = las.header
But it can not pass vlrs or evlrs info into new object, because in laspy, vlrs info is dynamically obtained afterw

Is your feature request related to a problem? Please describe.
Would like to be able to use callback function for run_command to call when a command has finished executing.

Describe the solution you'd like

def my_cb(host_out, my_arg):
    for line in host_out.stdout:
        print(line)

client.run_command('echo me', callback=my_cb, callback_extra_args=('my_arg',))

`m