Frequently Asked Questions#

Error When Writing Grammar Tables#

It is possible that black will fail when trying to create local cache directory, you can resovle this by creating the directory yourself (elevated permissions might be required):-

python -c "import black; black.CACHE_DIR.mkdir(parents=True, exist_ok=True)"

For more information, see issue #10.

JupyterLab Commands Not Showing Up#

Make sure you really have one of the formatters properly installed in the Jupyter Server’s environment.

The plugin is also configured to only show commands when a suitable notebook/script is opened, it’s worth checking if you have opened one such notebook/script.