{ lib, buildPythonPackage, fetchPypi, stdenv, cppy, setuptools-scm, pythonOlder, }: buildPythonPackage rec { pname = "kiwisolver"; version = "1.4.8"; format = "setuptools"; disabled = pythonOlder "3.7"; src = fetchPypi { inherit pname version; hash = "sha256-I9XwI73Ix+VOtl8Dyl1bsltgHqxNfxoEKIih9FI3mH4="; }; env.NIX_CFLAGS_COMPILE = lib.optionalString stdenv.hostPlatform.isDarwin "-I${lib.getInclude stdenv.cc.libcxx}/include/c++/v1"; nativeBuildInputs = [ setuptools-scm ]; buildInputs = [ cppy ]; pythonImportsCheck = [ "kiwisolver" ]; meta = with lib; { description = "Implementation of the Cassowary constraint solver"; homepage = "https://github.com/nucleic/kiwi"; license = licenses.bsd3; maintainers = [ ]; }; }