make 'jupyter-server-proxy' an optional install

[mgeplf]

As far as I can tell, jupyter-server-proxy is not a needed dependency; however it may be useful for debugging. Since it is an 'extra', it would be nice to make it optional. This way, jupyter and it's dependencies aren't installed.

[kmpaul]

I think that's fair. Thanks for the PR!

[mgeplf]

No problem; thanks for the quick response.

If it can be removed altogether, that works too. IIRC, dask or distributed print a banner saying it can be installed if visualization is desired.

[kmpaul]

If Dask and distributed print a banner, and it is optional for them, it's ok to remove it.

[mgeplf]

I just checked: distributed doesn't include it in its requirements: https://github.com/dask/distributed/blob/main/pyproject.toml#L28

The dask scheduler prints this message, on startup:

2023-04-05 08:55:35,419 - distributed.http.proxy - INFO - To route to workers diagnostics web server please install jupyter-server-proxy: python -m pip install jupyter-server-proxy

I have pushed a change that removes jupyter-server-proxy completely.

[kmpaul]

Is it ready to merge then?

[mgeplf]

Is it ready to merge then?

Yup, I think so.

[kmpaul]

Thanks so much for the PR!

[mgeplf]

Thanks so much for the PR!

No problem, thanks for accepting it, and maintaining dask-mpi.