anchor.diff:    };
   
     nativeBuildInputs = [ setuptools_scm ];
  -  buildInputs = [ pytest pytest-forked ];
  +  checkInputs = [ pytest pytest-forked filelock ];
     propagatedBuildInputs = [ execnet ];
   
     checkPhase = ''
  
positive.code: { stdenv, fetchPypi, buildPythonPackage, execnet, pytest, setuptools_scm, pytest-forked }:
  
  buildPythonPackage rec {
    pname = "pytest-xdist";
  
negative.code:     description = "py.test xdist plugin for distributed testing and loop-on-failing modes";
      homepage = https://github.com/pytest-dev/pytest-xdist;
      license = licenses.mit;
      maintainers = with maintainers; [ dotlambda ];
    };
  }
  