anchor.diff:    checkInputs = [
       glibcLocales
       jmespath
  -    pytest
  +    pytestCheckHook
       sybil
       testfixtures
       pillow
  
positive.code: , isPy27
  , fetchPypi
  , glibcLocales
  , pytest
  , testfixtures
  , pillow
  , twisted
  
negative.code: }:
  
  buildPythonPackage rec {
    version = "2.4.0";
    pname = "Scrapy";
  
    disabled = isPy27;
  