Document file types supported by /learn

[JasonWeill]

Problem

The file types supported by the /learn command are listed in the source code:

jupyter-ai/packages/jupyter-ai/jupyter_ai/document_loaders/directory.py

Lines 29 to 42 in 940b6ef

	SUPPORTED_EXTS = {
	".py",
	".md",
	".R",
	".Rmd",
	".jl",
	".sh",
	".ipynb",
	".js",
	".ts",
	".jsx",
	".tsx",
	".txt",
	}

These file types are not documented in our user-facing documentation, though, as @labarba noted here: https://discourse.jupyter.org/t/jupyter-ai-brings-large-language-models-to-jupyter-notebooks/20747

Proposed Solution

Document the supported file types for the document loader.

Additional context

We might need to update the user interface as well, such as if a user attempts to /learn a file whose extension is not supported.

[labarba]

Thank you for posting this issue, Jason!

Interesting to note that when I wrote the short lesson on Jupyter AI /learn (http://go.gwu.edu/engcomp7lesson2), I actually landed on a different line of the source code that lists fewer file extensions, as follows:

extensions={'.py', '.md', '.R', '.Rmd', '.jl', '.sh', '.ipynb', '.js', '.ts'},

Thus, I wrote that .txt in particular is not supported. Can you clarify how these two lines of code interact? Did I end up in an outdated version of the code? Or what?

[JasonWeill]

@labarba That link is to @ellisonbg 's fork of jupyter-ai, and is from an older version of the code when we used Ray to schedule tasks. Today we use Dask, and the permalink above is from the main branch.

[labarba]

Oh, yes... I didn't notice that I was not in the main branch. Eek! I'll have to correct the lesson. I now see

        extensions={'.py', '.md', '.R', '.Rmd', '.jl', '.sh', '.ipynb', '.js', '.ts', '.jsx', '.tsx', '.txt'},

in https://github.com/ellisonbg/jupyter-ai/blob/e6a78ad447c9f8ea744ac7ca92aedc7492f74076/packages/jupyter-ai/jupyter_ai/document_loaders/directory.py#L47

[labarba]

OK, yes, I'm in the wrong place, and I don't know how I ended up there. Thanks! 😊

[labarba]

🎉