MAINT/DEV: pin sphinx in environment.yml, bump jupyterlite-sphinx

[lucascolley]

Reference issue

n/a

What does this implement/fix?

gh-21324 for environment.yml too. @agriyakhetarpal how are we looking for removing these pins after jupyterlite/jupyterlite-sphinx#201 ?

Additional information

@gertingold bumped into this at the EuroSciPy 2024 sprint!

[agriyakhetarpal]

Hi @lucascolley, thanks for the ping! This should be resolved by now, shouldn't it? jupyterlite/jupyterlite-sphinx#201 was released in https://github.com/jupyterlite/jupyterlite-sphinx/releases/tag/v0.16.5, and https://anaconda.org/conda-forge/jupyterlite-sphinx/files has version 0.16.5 available, too (conda-forge/jupyterlite-sphinx-feedstock#34). Please let me know if if you think something was/is misconfigured!

[lucascolley]

would you like to open a PR to remove the pins, and see if CI agrees? I can't remember the exact message we saw locally, but it was some deprecation warning coming from Sphinx.

[agriyakhetarpal]

Sure, let me do that. There is a chance it might have come from MyST-NB, though – which had the same issue until yesterday: executablebooks/MyST-NB#620

[lucascolley]

which had the same issue until yesterday

Right, that might be it!

[gertingold]

The error I was encountering today with Sphinx 8.0.2 was

Exception occurred:
  File "/home/gert/.conda/envs/scipy-dev-test/lib/python3.12/site-packages/sphinx/util/_pathlib.py", line 96, in __getattr__
    warnings.warn(_MSG, RemovedInSphinx90Warning, stacklevel=2)
sphinx.deprecation.RemovedInSphinx90Warning: Sphinx 9 will drop support for representing paths as strings. Use "pathlib.Path" or "os.fspath" instead.

[agriyakhetarpal]

That's iteresting, Sphinx seems to report a warning from Sphinx itself...

[lucascolley]

thanks @agriyakhetarpal ! I'll merge this to fix the dev setup right now, and hopefully we can remove the pin in gh-21482 soon.

[agriyakhetarpal]

Yes, sounds great, @lucascolley! I hope your talk at EuroSciPy went well and that you have a great time at the NF summit!