Find out if my code runs inside a notebook or jupyter lab?

General
14

I don’t think that is universal @CatChenal. To get your function to return True, I needed to change jupyter-lab-script to jupyter-notebook inside a notebook running in JupyterLab that was running via MyBinder, which is a fancy JupyterHub.

Here’s what psutil.Process().parent().cmdline() returns inside my current JupyterLab session with the token anonymized:

['/srv/conda/envs/notebook/bin/python',
 '/srv/conda/envs/notebook/bin/jupyter-notebook',
 '--ip=0.0.0.0',
 '--port=8888',
 '--NotebookApp.base_url=/user/fomightez-hhsuite3-binder-gru3g8n3/',
 '--NotebookApp.token=XXXXXXXXXXXXX',
 '--NotebookApp.trust_xheaders=True',
 '--NotebookApp.allow_origin=*']

For completeness, I should add that I got back the same from psutil.Process().parent().cmdline(), whether I was running in classic notebook or JupyterLab notebook interface on that hub.