Common Directories and File Locations — Jupyter Documentation ...
docs.jupyter.org › en › latestJUPYTER_CONFIG_PATH should contain a series of directories, separated by `` os.pathsep`` (; on Windows, : on Unix). An example of where the JUPYTER_CONFIG_PATH can be set is if notebook or server extensions are installed in a custom prefix. Since notebook and server extensions are automatically enabled through configuration files, automatic enabling will only work if the custom prefix’s etc/jupyter directory is added to the Jupyter config search path.