python3Packages.ufmt: cleanup

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

@@ -1,20 +1,28 @@
 {
   lib,
-  black,
   buildPythonPackage,
-  click,
   fetchFromGitHub,
+
+  # build-system
   flit-core,
+
+  # dependencies
+  black,
+  click,
   libcst,
   moreorless,
-  pygls,
-  pythonOlder,
   tomlkit,
   trailrunner,
-  ruff-api,
   typing-extensions,
-  unittestCheckHook,
   usort,
+
+  # optional-dependencies
+  pygls,
+  ruff-api,
+
+  # tests
+  unittestCheckHook,
+  versionCheckHook,
 }:
 
 buildPythonPackage rec {
@@ -22,8 +30,6 @@ buildPythonPackage rec {
   version = "2.8.0";
   pyproject = true;
 
-  disabled = pythonOlder "3.8";
-
   src = fetchFromGitHub {
     owner = "omnilib";
     repo = "ufmt";
@@ -51,17 +57,19 @@ buildPythonPackage rec {
 
   nativeCheckInputs = [
     unittestCheckHook
+    versionCheckHook
   ]
   ++ lib.flatten (builtins.attrValues optional-dependencies);
+  versionCheckProgramArg = "--version";
 
   pythonImportsCheck = [ "ufmt" ];
 
-  meta = with lib; {
+  meta = {
     description = "Safe, atomic formatting with black and usort";
     homepage = "https://github.com/omnilib/ufmt";
     changelog = "https://github.com/omnilib/ufmt/blob/${version}/CHANGELOG.md";
-    license = licenses.mit;
-    maintainers = with maintainers; [ fab ];
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ fab ];
     mainProgram = "ufmt";
   };
 }