python310Packages.batchspawner: disable on older Python releases

pkgs/development/python-modules/batchspawner/default.nix

···
 , buildPythonPackage
 , fetchFromGitHub
 , jupyterhub
-, isPy27
+, pythonOlder
 }:
 
 buildPythonPackage rec {
   pname = "batchspawner";
   version = "1.2.0";
-  disabled = isPy27;
+  format = "setuptools";
+
+  disabled = pythonOlder "3.5";
 
   src = fetchFromGitHub {
     owner = "jupyterhub";
     repo = "batchspawner";
     rev = "refs/tags/v${version}";
-    sha256 = "sha256-oyS47q+gsO7JmRsbVJXglZsSRfits5rS/nrHW5E7EV0=";
+    hash = "sha256-oyS47q+gsO7JmRsbVJXglZsSRfits5rS/nrHW5E7EV0=";
   };
 
   propagatedBuildInputs = [
     jupyterhub
   ];
 
-  # tests require a job scheduler e.g. slurm, pbs, etc.
+  # Tests require a job scheduler e.g. slurm, pbs, etc.
   doCheck = false;
 
-  pythonImportsCheck = [ "batchspawner" ];
+  pythonImportsCheck = [
+    "batchspawner"
+  ];
 
   meta = with lib; {
     description = "A spawner for Jupyterhub to spawn notebooks using batch resource managers";