Upgrade to Sphinx 1.8.5

[saraedum]

This ticket upgrades Sphinx to version 1.8.5.

Our previous upgrade was to Sphinx 1.7.6 in #26033.

Tarball: https://files.pythonhosted.org/packages/2a/86/8e1e8400bb6eca5ed960917952600fce90599e1cb0d20ddedd81ba163370/Sphinx-1.8.5.tar.gz

Depends on #27528

CC: @timokau @kiwifb @antonio-rojas @embray @slel @jhpalmieri @dimpase @tobihan

Component: packages: standard

Keywords: sphinx, conda, upgrade

Author: Julian Rüth, Jeroen Demeyer, John Palmieri, Tobias Hansen

Branch/Commit: f1a08e3

Reviewer: Dima Pasechnik

Issue created by migration from https://trac.sagemath.org/ticket/26451

[saraedum]

comment:1

Note that there is nothing I can doctest here.

[saraedum]

Branch: u/saraedum/26451

[saraedum]

Work Issues: is the patchbot happy?

[saraedum]

Commit: eb00e75

[saraedum]

New commits:

eb00e75

Call Sphinx() 1.8 constructor

[saraedum]

Changed keywords from none to sphinx, conda

[jdemeyer]

comment:6

I'd rather upgrade Sphinx while we're at it. That's a good thing to do and I would need to do that anyway to test this ticket.

[saraedum]

comment:7

I was fearing that you would propose that ;)

I am not planning on working on upgrading Sphinx in Sage (as I've got too many other things to worry about.) I don't know what has chahnged in 1.8.1 and whether we would want to upgrade at all.

More generally, I don't know what we're aiming for here. I feel we don't have enough people to keep Sage-the-distribution close to upstream most of the time so that's probably not what we should be aiming for?

That said, feel free to upgrade Sphinx :) But if anybody likes these small changes and we want to move the Sphinx upgrade into a separate ticket, I would prefer that.