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python3Packages: get rid of uses of nose #326513

@emilazy

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@emilazy

nose is abandoned upstream and has caused us untold headaches recently (admittedly mostly unrelated to the code itself). We’ve stopped the bleeding by getting #325968 into staging thanks to the incredible work of @jchv, but it’s still broken on master and we ought to do some tidying up so we’re not dragging this around forever and perhaps even to unblock some stuff on master while the staging cycle progresses. Many packages don’t actually need nose any more, despite us including it in our dependency lists. Active upstreams should have already moved to pytest or something else. Some packages will have patches available; if we’re really feeling generous we could send patches to upstream ourselves. Others may be completely unmaintained packages that we could think about dropping.

Please make sure to migrate packages to pyproject = true; when working on them. Additionally, if the upstream is unmaintained, there are no significant reverse dependencies in‐tree or on Wheelodex, and it requires patching or there is no particular reason to imagine we’d want to keep it, consider just dropping the package. For the same reasons we want to get rid of nose, we should take this as an opportunity to reduce future maintenance burden and drop broken, unused, or long‐obsolete packages.

@dotlambda has already done some great work on this – see #325847, #325872, #325885, and #326164 – but I thought it’d be good to have a master list of all affected packages so we can tackle it collectively. If you open a PR for one of these, please edit this issue to link it beside the relevant package(s).

Already done

This was generated from staging commit 83881cb with the following awful fish one‐liner: for pkg in (rg -l '\bnose3?\b' | rg -v '/(nose[23]?|cufflinks|enocean|jaconv|annoy|hdmedians|flaky|pycron|snapshottest|ssh-mitm|colour|influxdb)/|(python|cran)-(packages|aliases)\.nix' | sed 's|.*/\([^/]*\)/\([^/]*\)$|\1|'); rg "/$pkg"'[ \n{]' pkgs/top-level/python-packages.nix | awk '{print "python3Packages." $1}'; test $pipestatus[1] = 0 || rg "/$pkg"'[ \n{]' pkgs/top-level/all-packages.nix | awk '{print $1}'; test $pipestatus[1] = 0 || echo "$pkg"; end | sort -u | sed 's/^/* [ ] `/; s/$/`/'; feel free to edit to update the list.

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    3.skill: sprintableA larger issue which is split into distinct actionable tasks5.scope: trackingLong-lived issue tracking long-term fixes or multiple sub-problems6.topic: pythonPython is a high-level, general-purpose programming language.

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