anchor.diff:  { lib
   , buildPythonPackage
   , fetchFromGitHub
  +, mock
   , six
  -, future
  -, mock
   , pytestCheckHook
  +, pythonOlder
   }:
   
   buildPythonPackage rec {
     pname = "pymemcache";
  -  version = "3.5.1";
  +  version = "3.5.2";
     format = "setuptools";
  +
  +  disabled = pythonOlder "3.7";
   
     src = fetchFromGitHub {
       owner = "pinterest";
       repo = pname;
       rev = "v${version}";
  -    sha256 = "sha256-DKqfv5gf9gzbnEPQSzy2mAaVYJZL9jmTKyGWVzj40T4=";
  +    hash = "sha256-bsiFWZHGJO/07w6mFXzf0JwftJWClE2mTv86h8zT1K0=";
     };
   
     propagatedBuildInputs = [
  
positive.code:   ];
  
    checkInputs = [
      future
      mock
      pytestCheckHook
    ];
  
negative.code:     "TestClientSocketConnect"
    ];
  
    pythonImportsCheck = [
      "pymemcache"
    ];
  
    meta = with lib; {
      description = "Python memcached client";
  