pter: init at 3.20.1

[amadejkastelic]

Closes #419502

Also had to add two new python packages that pter depends on:

• cursedspace
• pytodotxt

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• 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/)
• Nixpkgs 25.11 Release Notes (or backporting 24.11 and 25.05 Nixpkgs Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
• NixOS 25.11 Release Notes (or backporting 24.11 and 25.05 NixOS Release notes)
  • (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, pkgs/README.md, maintainers/README.md and other contributing documentation in corresponding paths.

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[amadejkastelic]

nixpkgs-review result

Generated using nixpkgs-review.

Command: nixpkgs-review pr 419544
Commit: 4cf62f3d00722c0b4877eb11ed0ed58c6e665d0f

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aarch64-darwin

✅ 10 packages built:

• pter
• pter.dist
• python312Packages.cursedspace
• python312Packages.cursedspace.dist
• python312Packages.pytodotxt
• python312Packages.pytodotxt.dist
• python313Packages.cursedspace
• python313Packages.cursedspace.dist
• python313Packages.pytodotxt
• python313Packages.pytodotxt.dist