{ ... }:
res: pkgs: super:

with pkgs; {
  pythonInterpreters = callPackage ./. { };
  inherit (pythonInterpreters)
    python27
    python39
    python310
    python311
    python312
    python313
    python3Minimal
    pypy27
    pypy310
    pypy39
    rustpython
    ;

  # List of extensions with overrides to apply to all Python package sets.
  pythonPackagesExtensions = [ ];
  # Python package sets.
  python27Packages = python27.pkgs // {
    __attrsFailEvaluation = true;
  };
  python39Packages = python39.pkgs // {
    __attrsFailEvaluation = true;
  };
  python310Packages = python310.pkgs // {
    __attrsFailEvaluation = true;
  };
  python311Packages = recurseIntoAttrs python311.pkgs // {
    pythonPackages = python311.pkgs // {
      __attrsFailEvaluation = true;
    };
  };
  python312Packages = recurseIntoAttrs python312.pkgs // {
    pythonPackages = python312.pkgs // {
      __attrsFailEvaluation = true;
    };
  };
  python313Packages = python313.pkgs // {
    __attrsFailEvaluation = true;
  };
  pypyPackages = pypy.pkgs // {
    __attrsFailEvaluation = true;
  };
  pypy2Packages = pypy2.pkgs // {
    __attrsFailEvaluation = true;
  };
  pypy27Packages = pypy27.pkgs // {
    __attrsFailEvaluation = true;
  };
  pypy3Packages = pypy3.pkgs // {
    __attrsFailEvaluation = true;
  };
  pypy39Packages = pypy39.pkgs // {
    __attrsFailEvaluation = true;
  };
  pypy310Packages = pypy310.pkgs // {
    __attrsFailEvaluation = true;
  };

  # Python interpreters. All standard library modules are included except for tkinter, which is
  # available as `pythonPackages.tkinter` and can be used as any other Python package.
  # When switching these sets, please update docs at ../../doc/languages-frameworks/python.md
  python2 = python27;
  python3 = python312;

  # pythonPackages further below, but assigned here because they need to be in sync
  python2Packages = dontRecurseIntoAttrs python27Packages;
  python3Packages = dontRecurseIntoAttrs python311Packages;

  # Should eventually be moved inside Python interpreters.
  python-setup-hook = buildPackages.callPackage ./setup-hook.nix { };

  update-python-libraries = callPackage ./update-python-libraries { };

  docutils =
    with python3Packages;
    toPythonApplication (
      docutils.overridePythonAttrs (attrs: rec {
        version = "0.20.1";
        src = attrs.src.override {
          inherit version;
          hash = "sha256-8IpOJ2w6FYOobc4+NKuj/gTQK7ot1R7RYQYkToqSPjs=";
        };
      })
    );

  actdiag = with python3.pkgs; toPythonApplication actdiag;
  blockdiag = with python3Packages; toPythonApplication blockdiag;
  nwdiag = with python3Packages; toPythonApplication nwdiag;
  buildcatrust = with python3.pkgs; toPythonApplication buildcatrust;
  seqdiag = with python3Packages; toPythonApplication seqdiag;
}