anchor.diff:  
   buildPythonPackage rec {
     pname = "pytest-mock";
  -  version = "3.6.1";
  +  version = "3.7.0";
   
     src = fetchPypi {
       inherit pname version;
  -    sha256 = "40217a058c52a63f1042f0784f62009e976ba824c418cced42e88d5f40ab0e62";
  +    hash = "sha256-URK9ksyfGG7pbhqS78hJaepJSTnDrq05xQ9CHEzGlTQ=";
     };
   
     nativeBuildInputs = [ setuptools-scm ];
  +
  +  propagatedBuildInputs = [
  +    pytest
  +  ];
   
     checkInputs = [
       pytest-asyncio
  
positive.code:     description = "Thin-wrapper around the mock package for easier use with pytest";
      homepage = "https://github.com/pytest-dev/pytest-mock";
      license = with licenses; [ mit ];
      maintainers = with maintainers; [ ];
    };
  }
  
negative.code: { lib
  , buildPythonPackage
  , fetchPypi
  , pytest
  , pytest-asyncio
  , pytestCheckHook
  , setuptools-scm
  