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jupyterlab / jupyterlab

JupyterLab computational environment.
https://jupyterlab.readthedocs.io/
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Labextensions not working on starting notebook #1516

Closed rsinha25 closed 7 years ago

rsinha25 commented 7 years ago

Hi,

So when I start jupyter lab with jupyter lab , labextensions seem to work perfectly fine, but they don't work when I start notebook : jupyter notebook and redirect to /lab.

blink1073 commented 7 years ago

Hi @rsinha25, I am not seeing this behavior, are you using the latest version? jupyter lab --version should be 0.13.1.

rsinha25 commented 7 years ago

Hi, yes I am using the latest version. So I have a config file in which I have enabled labextensions as well as a server extension that I have, and done a couple of other things. In the global Jupyter config I have set labextensions as well as that server extensions as disabled. This is because I dont want the labextensions to be enabled unless I start lab or notebook with my config. You could try doing this to reproduce the behaviour.

In this scenario, when I start Lab with the config, the labextensions are enabled, however, when I start notebook with the same config, and redirect to /lab, they don't get enabled.

rsinha25 commented 7 years ago

Thanks for the fix.

rsinha25 commented 7 years ago

@blink1073 So, this fix about using initialize() instead of load_config_file() seems to work when I do jupyter notebook now. i.e. when I do jupyter notebook all the labextensions work correctly also. So, this is a valid fix for that.

But when I try to run jupyterhub with the default jupyterhub-singleuser it has (which uses NoteBookApp by default) I get some errors. I think this is because jupyterhub-singleuser is passing some additional things like --user=rsinha25 and --cookie-name.

The command it tries to run is:

jupyterhub-singleuser '--user="rsinha25"' '--cookie-name="jupyter-hub-token-rsinha25"' '--base-url="/user/rsinha25"' '--hub-host=""' '--hub-prefix="/hub/"' '--hub-api-url="http://127.0.0.1:8081/hub/api"' '--ip="127.0.0.1"' --port=57181

And it errors out with the help message from jupyterlab and:

[C 18:58:45.281 LabApp] Bad config encountered during initialization:
[C 18:58:45.281 LabApp] Invalid argument: '--cookie-name="jupyter-hub-token-rsinha25"'
[W 2017-01-20 18:58:52.376 JupyterHub web:1545] 500 POST /hub/login?next= (::ffff:127.0.0.1): Spawner failed to start [status=1]

Could you suggest what is the correct way to do this ?

blink1073 commented 7 years ago

This is going to take some thought, as it is the default behavior of a JupyterApp, reopening.

rsinha25 commented 7 years ago

Hey,

Thanks a ton for the fix!