When I have extensions enabled, I get a tremendous amount of output when I do the following:
$ jupyter contrib nbextension install --sys-prefix --log-level=50
$ jupyter nbextension install --py full_width --sys-prefix --log-level=50
... various extensions ...
| b'Enabling: jupyter_nbextensions_configurator\n- Writing config:
This output buffers very slowly, like tens of minutes and often crashes my editor. I'd just rather silence all output. I figured the log_level command would do that, but it did not seem to.
How can I disable all output from jupyter_nbextensions?