depot/third_party/nixpkgs/pkgs/development/python-modules/tensordict/default.nix

{
  lib,
  buildPythonPackage,
  pythonOlder,
  fetchFromGitHub,
  setuptools,
  torch,
  wheel,
  which,
  cloudpickle,
  numpy,
  h5py,
  pytestCheckHook,
  stdenv,
  pythonAtLeast,
}:

buildPythonPackage rec {
  pname = "tensordict";
  version = "0.4.0";
  pyproject = true;

  disabled = pythonOlder "3.8";

  src = fetchFromGitHub {
    owner = "pytorch";
    repo = "tensordict";
    rev = "refs/tags/v${version}";
    hash = "sha256-wKEzNaaazGEkoElzp93RIlq/r5uRUdM7UyDy/DygIEc=";
  };

  build-system = [
    setuptools
    torch
    wheel
    which
  ];

  dependencies = [
    cloudpickle
    numpy
    torch
  ];

  pythonImportsCheck = [ "tensordict" ];

  # We have to delete the source because otherwise it is used instead of the installed package.
  preCheck = ''
    rm -rf tensordict
  '';

  nativeCheckInputs = [
    h5py
    pytestCheckHook
  ];

  disabledTests =
    # Hangs forever
    [ "test_copy_onto" ]
    ++ lib.optionals (stdenv.hostPlatform.system == "aarch64-linux") [
      # RuntimeError: internal error
      "test_add_scale_sequence"
      "test_modules"
      "test_setattr"

      # _queue.Empty errors in multiprocessing tests
      "test_isend"
    ];

  # ModuleNotFoundError: No module named 'torch._C._distributed_c10d'; 'torch._C' is not a package
  disabledTestPaths = lib.optionals stdenv.isDarwin [ "test/test_distributed.py" ];

  meta = {
    description = "Pytorch dedicated tensor container";
    changelog = "https://github.com/pytorch/tensordict/releases/tag/v${version}";
    homepage = "https://github.com/pytorch/tensordict";
    license = lib.licenses.mit;
    maintainers = with lib.maintainers; [ GaetanLepage ];
    # No python 3.12 support yet: https://github.com/pytorch/rl/issues/2035
    broken = pythonAtLeast "3.12";
  };
}