anchor.diff:      sha256 = "sha256-Ds8JV2mtLRcKXBvPs84Hdj3MxxqpeV5muKCSlAFCj1A=";
     };
   
  +  postPatch = ''
  +    substituteInPlace setup.py \
  +      --replace "'pytest-runner'" ""
  +    substituteInPlace setup.cfg \
  +      --replace "--cov=pymarshal --cov-report=html --cov-report=term" ""
  +  '';
  +
     nativeBuildInputs = [
       setuptools
  -    pytest-runner
     ];
   
     propagatedBuildInputs = [
  
positive.code: , fetchFromGitHub
  , pythonOlder
  , bson
  , pytest
  , pytest-cov
  , pytest-runner
  , pytestCheckHook
  , pyyaml
  , setuptools
  
negative.code:   checkInputs = [
      pytestCheckHook
      bson
      pyyaml
    ];
  
  