anchor.diff:  , setuptools_scm
   , isPy3k
   , pytest
  +, pytest-black
  +, pytest-flake8
  +, pytestcov
   }:
   
   buildPythonPackage rec {
  
positive.code:     sha256 = "8fde5f188da2d593bd5bc0be98d9abc46c95bb8a9dde93429570192ee6cc2d4a";
    };
  
    buildInputs = [ setuptools_scm ];
  
    checkInputs = [ pytest ];
  
    checkPhase = ''
      pytest
    '';
  
    # Test fail on Python 2
  
negative.code:     homepage = https://github.com/jaraco/backports.functools_lru_cache;
      license = lib.licenses.mit;
    };
  }
  