{
  lib,
  buildPythonPackage,
  fetchPypi,
  setuptools,
  pytestCheckHook,
  testtools,
}:

buildPythonPackage (finalAttrs: {
  pname = "extras";
  version = "1.0.0";
  pyproject = true;

  src = fetchPypi {
    inherit (finalAttrs) pname version;
    hash = "sha256-Ey423hC5yR1dTMYgFgpHbgRoqI8WyUMYF6ZylhGoG04=";
  };

  build-system = [ setuptools ];

  preCheck = ''
    substituteInPlace extras/tests/test_extras.py \
        --replace-fail "assertEquals(" "assertEqual("
  '';

  nativeCheckInputs = [
    pytestCheckHook
    testtools
  ];

  meta = {
    description = "Useful extra bits for Python - things that should be in the standard library";
    homepage = "https://github.com/testing-cabal/extras";
    license = lib.licenses.mit;
  };
})