{ lib, isPy27, buildPythonPackage, fetchPypi, pytestCheckHook, mock }: let pythonEnv = lib.optional isPy27 mock; in buildPythonPackage rec { pname = "json-rpc"; version = "1.15.0"; src = fetchPypi { inherit pname version; hash = "sha256-5kQdVsHc1UJByTfQotzRk73wvcU5tTFlJHE/VUt/hbk="; }; nativeCheckInputs = pythonEnv ++ [ pytestCheckHook ]; nativeBuildInputs = pythonEnv; meta = with lib; { description = "JSON-RPC 1/2 transport implementation"; homepage = "https://github.com/pavlov99/json-rpc"; license = licenses.mit; maintainers = with maintainers; [ oxzi ]; }; }