python310Packages.backports_*: remove

[natsukium]

Description of changes

remove the following python310Packages

• backports_csv
• backports_functools_lru_cache
• backports_tempfile
• backports_unittest-mock
• backports_weakref

relates to #245383

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandbox = true set in nix.conf? (See Nix manual)
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 23.11 Release Notes (or backporting 23.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

[natsukium]

Result of nixpkgs-review pr 245894 run on x86_64-linux 1

8 packages built:

• python310Packages.ritassist
• python310Packages.ritassist.dist
• python310Packages.sseclient
• python310Packages.sseclient.dist
• python311Packages.ritassist
• python311Packages.ritassist.dist
• python311Packages.sseclient
• python311Packages.sseclient.dist

[bryango]

This PR breaks all python2 build. See e.g. #246631.

[zimbatm]

I think it's a sign that python2 should be removed from nixpkgs

[mweinelt]

Given that we don't build it in review, it feels like it's game over.

[bryango]

Maybe for now we should mark python2 as broken? Also, there is a new PR #246976 to re-introduce the missing dep for python2.

My build of python2 is only for the gimp plugin ecosystem, which still heavily relies on it. I am okay with dropping python2 support, but then I will have to switch to flatpak or appimage for gimp 😱

[natsukium]

I will try not to break as much as I can notice, but I don't have the time to maintain python2.
I think you need to pin the revision of nixpkgs for gimp or make an effort to keep python2 with current users.