anchor.diff:    ];
   
     checkPhase = ''
  +    runHook preCheck
       nosetests -v --with-coverage --cover-package=expiringdict
  +    runHook postCheck
     '';
   
  -  pythonImportsCheck = [ "expiringdict" ];
  +  pythonImportsCheck = [
  +    "expiringdict"
  +  ];
   
     meta = with lib; {
       description = "Dictionary with auto-expiring values for caching purposes";
  -    homepage = "https://pypi.org/project/expiringdict/";
  +    homepage = "https://github.com/mailgun/expiringdict";
       license = licenses.asl20;
       maintainers = with maintainers; [ gravndal ];
     };
  
positive.code: { lib
  , buildPythonApplication
  , fetchFromGitHub
  , dill
  , coverage
  
negative.code: , nose
  }:
  
  buildPythonPackage rec {
    pname = "expiringdict";
    version = "1.2.2";
    format = "setuptools";
  
    # use fetchFromGitHub instead of fetchPypi because the test suite of
    # the package is not included into the PyPI tarball
    src = fetchFromGitHub {
      owner = "mailgun";
      repo = pname;
      rev = "refs/tags/v${version}";
      sha256 = "sha256-vRhJSHIqc51I+s/wndtfANM44CKW3QS1iajqyoSBf0I=";
    };
  
  