Update to JupyterLite 0.6.0

[jtpio]

Hi,

As a quick heads-up, JupyterLite 0.6.0 is around the corner (currently in beta) and comes with a few changes, some of them impacting kernels.

For kernels the main change is the switch to regular JupyterLab plugins, instead of the specific JupyterLiteServerPlugin used until now in JupyterLite:

jupyterlite-webr-kernel/src/index.ts

Line 11 in 49e5e06

const server_kernel: JupyterLiteServerPlugin<void> = {

The file system access when multiple tabs are opened has also been improved, with the use of browsingContextId for kernels that enable file system access.

There is more information in the migration guide: https://jupyterlite.readthedocs.io/en/latest/migration.html#to-0-6-0.

Don't hesitate to comment here or open a new issue on the repo if needed, happy to help!

[psychemedia]

I note that JupyterLite 0.6.0 is now released, and jupyterlite-core has upgraded to 0.6.x (jupyterlite-webr-kernel dependencies pin it >-0.5,<0.6;

jupyterlite-webr-kernel/pyproject.toml

Line 25 in 4c8bbdf

dependencies = ["jupyterlite-core>=0.5,<0.6"]

[psychemedia]

I had a quick look at updating the packages to JupyterLab 4.4 and JupyterLite 0.6.0 here, and whilst the build completes, the environment runs, and the kernel executes R code, read and writes from the file system fail:

cat("here is some text", file = "my_data.txt") hangs;

library(nlme); data("Orthodont") hangs;

using read.csv() on a file visible in the file browser hangs;

Previously, the filemount had been fixed in this commit: bcb7bfb#diff-bdf8aa8505edfcf3f094f4f966f4417603c8670db8e16b9919e166d24476bdea

[georgestagg]

It's likely the version of @jupyterlite/contents bundled with webR will need upgrading to the latest version to match, which looks like 0.6.2.

I've opened r-wasm/webr#548 to track that change, hopefully should be included in the next release of webR (which shouldn't be too long, I want to get a patch release out in any case).

[psychemedia]

Thanks @georgestagg ; we're looking at testing the use of WebR / JupyterLite with learners in secure environments after the summer and it's handy if we don't start the academic year too many versions behind given things are often not updated in-presentation.