anchor.diff: -{ lib, fetchFromGitHub, buildPythonPackage, pytestCheckHook, eth-hash, eth-typing,
  -  cytoolz, hypothesis }:
  +{ lib
  +, fetchFromGitHub
  +, buildPythonPackage
  +, eth-hash
  +, eth-typing
  +, cytoolz
  +, hypothesis
  +, isPyPy
  +, pytestCheckHook
  +, pythonOlder
  +, toolz
  +}:
   
   buildPythonPackage rec {
     pname = "eth-utils";
     version = "2.0.0";
  +  disabled = pythonOlder "3.6";
   
  -  # Tests are missing from the PyPI source tarball so let's use GitHub
  -  # https://github.com/ethereum/eth-utils/issues/130
     src = fetchFromGitHub {
       owner = "ethereum";
       repo = pname;
  
positive.code:     sha256 = "sha256-E2vUROc2FcAv00k50YpdxaaYIRDk1yGSPB8cHHw+7Yw=";
    };
  
    checkInputs = [ pytestCheckHook hypothesis ];
    propagatedBuildInputs = [ eth-hash eth-typing cytoolz ];
  
    pythonImportsCheck = [ "eth_utils" ];
  
  
negative.code:     description = "Common utility functions for codebases which interact with ethereum";
      homepage = "https://github.com/ethereum/eth-utils";
      license = lib.licenses.mit;
      maintainers = with lib.maintainers; [ SuperSandro2000 ];
    };
  }
  