{ lib, buildPythonPackage, fetchPypi, # build-system flit-core, # tests pretend, pytestCheckHook, }: let packaging = buildPythonPackage rec { pname = "packaging"; version = "25.0"; pyproject = true; src = fetchPypi { inherit pname version; hash = "sha256-1EOHLJjWd79g9qHy+MHLdI6P52LSv50xSLVZkpWw/E8="; }; nativeBuildInputs = [ flit-core ]; nativeCheckInputs = [ pytestCheckHook pretend ]; pythonImportsCheck = [ "packaging" "packaging.metadata" "packaging.requirements" "packaging.specifiers" "packaging.tags" "packaging.version" ]; # Prevent circular dependency with pytest doCheck = false; passthru.tests = packaging.overridePythonAttrs (_: { doCheck = true; }); meta = { changelog = "https://github.com/pypa/packaging/blob/${version}/CHANGELOG.rst"; description = "Core utilities for Python packages"; downloadPage = "https://github.com/pypa/packaging"; homepage = "https://packaging.pypa.io/"; license = with lib.licenses; [ bsd2 asl20 ]; maintainers = with lib.maintainers; [ bennofs ]; teams = [ lib.teams.python ]; }; }; in packaging