{ lib, buildPythonPackage, fetchPypi}: buildPythonPackage rec { pname = "sentinel"; version = "1.0.0"; format = "setuptools"; src = fetchPypi { inherit pname version; hash = "sha256-GQko+ZUa9ulKH4Tu/K7XkcKAl90VK4jpiJBr4wBFH9I="; }; meta = with lib; { description = "Create sentinel and singleton objects"; homepage = "https://github.com/eddieantonio/sentinel"; license = licenses.mit; }; }