{ lib, buildPythonPackage, fetchFromGitHub, marshmallow, pythonOlder, pytestCheckHook, setuptools, }: buildPythonPackage rec { pname = "marshmallow-polyfield"; version = "5.11"; pyproject = true; disabled = pythonOlder "3.6"; src = fetchFromGitHub { owner = "Bachmann1234"; repo = "marshmallow-polyfield"; rev = "refs/tags/v${version}"; hash = "sha256-jbpeyih2Ccw1Rk+QcXRO9AfN5B/DhZmxa/M6FzXHqqs="; }; postPatch = '' substituteInPlace setup.cfg \ --replace "--cov=marshmallow_polyfield" "" ''; nativeBuildInputs = [ setuptools ]; propagatedBuildInputs = [ marshmallow ]; nativeCheckInputs = [ pytestCheckHook ]; pythonImportsCheck = [ "marshmallow" ]; meta = with lib; { description = "Extension to Marshmallow to allow for polymorphic fields"; homepage = "https://github.com/Bachmann1234/marshmallow-polyfield"; license = licenses.asl20; maintainers = with maintainers; [ drewrisinger ]; }; }