anchor.diff:    version = "0.9.0";
     format = "setuptools";
   
  +  disabled = pythonOlder "3.7";
  +
     src = fetchPypi {
       inherit pname version;
  -    sha256 = "sha256-sq0a5jovZb149eCorFEKmPNgekPx2yqNRmNqXZ5KMME=";
  +    hash = "sha256-sq0a5jovZb149eCorFEKmPNgekPx2yqNRmNqXZ5KMME=";
     };
   
     propagatedBuildInputs = [
  
positive.code: , fetchPypi
  , regex
  , pytestCheckHook
  }:
  
  buildPythonPackage rec {
  
negative.code:     pytestCheckHook
    ];
  
    postPatch = ''
      substituteInPlace setup.py \
        --replace "regex>=2022.3.15" "regex"
    '';
  
    pythonImportsCheck = [
      "parsimonious"
      "parsimonious.grammar"
  