anchor.diff:    doCheck = true;
   
     checkInputs = [
  +   unixtools.script
      pytest
      coverage
      flake8
  
positive.code:    toml
    ];
  
    checkPhase = "pytest ./test/test.py";
  
    pythonImportsCheck = [ "yq" ];
  
  
negative.code:     sha256 = "1gp9q5w1bjbw7wmba5hm8ippwvkind0p02n07fqa9jlqglhxhm46";
    };
  
    propagatedBuildInputs = [
      pyyaml
      xmltodict
  