anchor.diff:    doCheck = true;
   
     checkInputs = [
  -   unixtools.script
      pytest
      coverage
      flake8
  
positive.code: , flake8
  , jq
  , pytest
  , unixtools
  , toml
  }:
  
  
negative.code:     sha256 = "1q4rky0a6n4izmq7slb91a54g8swry1xrbfqxwc8lkd3hhvlxxkl";
    };
  
    postPatch = ''
      substituteInPlace test/test.py --replace "expect_exit_codes={0} if sys.stdin.isatty() else {2}" "expect_exit_codes={0}"
    '';
  
    propagatedBuildInputs = [
      pyyaml
      xmltodict
  