{ lib , buildPythonPackage , pythonOlder , fetchFromGitHub , poetry-core , pytestCheckHook , pytest-mock , typing-extensions }: buildPythonPackage rec { pname = "pykka"; version = "4.0.1"; format = "pyproject"; disabled = pythonOlder "3.8"; src = fetchFromGitHub { owner = "jodal"; repo = pname; rev = "refs/tags/v${version}"; hash = "sha256-SYgT69/AZX/JDm89PwFqrUL9Ll1iHRKEy78BN4QKz9Y="; }; nativeBuildInputs = [ poetry-core ]; propagatedBuildInputs = lib.optionals (pythonOlder "3.10") [ typing-extensions ]; nativeCheckInputs = [ pytestCheckHook pytest-mock ]; pythonImportsCheck = [ "pykka" ]; meta = with lib; { homepage = "https://www.pykka.org/"; description = "A Python implementation of the actor model"; changelog = "https://github.com/jodal/pykka/releases/tag/v${version}"; maintainers = with maintainers; [ marsam ]; license = licenses.asl20; }; }