anchor.diff:  { lib
   , buildPythonPackage
  -, fetchpatch
  +, pythonOlder
   , fetchPypi
   , pytest
   , pytest-asyncio
  
positive.code: 
  buildPythonPackage rec {
    pname = "pytest-mock";
    version = "3.7.0";
  
    src = fetchPypi {
      inherit pname version;
      hash = "sha256-URK9ksyfGG7pbhqS78hJaepJSTnDrq05xQ9CHEzGlTQ=";
    };
  
    patches = [
      (fetchpatch {
        # pytest7 compatbilitya
        url = "https://github.com/pytest-dev/pytest-mock/commit/0577f1ad051fb8d0da94ea22dcb02346d74064b2.patch";
        hash = "sha256-eim4v7U8Mjigr462bXI0pKH/M0ANBzSRc0lT4RpbZ0w=";
      })
    ];
  
    nativeBuildInputs = [ setuptools-scm ];
  
    propagatedBuildInputs = [
      pytest
    ];
  
  
negative.code:     pytestCheckHook
    ];
  
    pythonImportsCheck = [ "pytest_mock" ];
  
    meta = with lib; {
      description = "Thin wrapper around the mock package for easier use with pytest";
      homepage = "https://github.com/pytest-dev/pytest-mock";
      changelog = "https://github.com/pytest-dev/pytest-mock/blob/v${version}/CHANGELOG.rst";
      license = licenses.mit;
      maintainers = with maintainers; [ dotlambda ];
    };
  }
  