anchor.diff:  buildPythonPackage rec {
     pname = "pyp";
     version = "1.0.0";
  +  format = "setuptools";
  +
  +  disabled = pythonOlder "3.6";
   
     src = fetchFromGitHub {
       owner = "hauntsaninja";
  
positive.code:   preCheck = ''
      export PATH=$out/bin:$PATH
    '';
    checkInputs = [
      pytestCheckHook
      coreutils
  
negative.code:     bc
    ];
  
    pythonImportsCheck = [
      "pyp"
    ];
  
    meta = with lib; {
      description = "Easily run Python at the shell! Magical, but never mysterious";
      homepage = "https://github.com/hauntsaninja/pyp";
      license = licenses.mit;
      maintainers = with maintainers; [ rmcgibbo ];
  