anchor.diff:  
     src = fetchPypi {
       inherit pname version;
  -    sha256 = "8021100bfbd6cc6056605361e763a3591efdea38014b3d8aa76c74c74de4ead4";
  +    sha256 = "0f246e98a5556d6ed9a33fda1e94c3ab906305729feb30d25e35344b3e1c1fd9";
     };
  -
  -  postPatch = ''
  -    substituteInPlace pyproject.toml \
  -      --replace 'python = "^3.7,<=3.10"' 'python = "^3.7,<3.11"' \
  -      --replace poetry.masonry.api poetry.core.masonry.api
  -  '';
   
     nativeBuildInputs = [
       poetry-core
  
positive.code: 
  buildPythonPackage rec {
    pname = "bite-parser";
    version = "0.1.1";
  
    disabled = pythonOlder "3.7";
  
  
negative.code:   meta = {
      description = "Asynchronous parser taking incremental bites out of your byte input stream";
      homepage = "https://github.com/jgosmann/bite-parser";
      changelog = "https://github.com/jgosmann/bite-parser/blob/v${version}/CHANGELOG.rst";
      license = lib.licenses.mit;
      maintainers = with lib.maintainers; [ dotlambda ];
    };
  