I was reading through https://dataschool.com/data-modeling-101/running-jupyter-notebook-on-an-ec2-server/ and I happened to notice one of the steps involves editing a configuration file named vim jupyter_notebook_config.py_. At first, I thought the underscore at the end was a typo; further testing revealed editing this file does have the intended effect.
I don't see this documented in Jupyter's official documentation. Does anyone know if reading jupyter_notebook_config.py_ (with underscore) is an undocumented feature?
P.S. I did some brief digging in https://github.com/jupyter/notebook, but could not find an answer.