python3Packages.nose2: modernize (#462366)

pkgs/development/python-modules/nose2/default.nix

@@ -2,7 +2,6 @@
   lib,
   buildPythonPackage,
   fetchPypi,
-  pythonOlder,
 
   # build-system
   setuptools,
@@ -19,17 +18,15 @@ buildPythonPackage rec {
   version = "0.15.1";
   pyproject = true;
 
-  disabled = pythonOlder "3.8";
-
   src = fetchPypi {
     inherit pname version;
     hash = "sha256-NncPUZ31vs08v+C+5Ku/v5ufa0604DNh0oK378/E8N8=";
   };
 
-  nativeBuildInputs = [ setuptools ];
+  build-system = [ setuptools ];
 
   optional-dependencies = {
-    coverage = [ coverage ];
+    coverage_plugin = [ coverage ];
   };
 
   pythonImportsCheck = [ "nose2" ];
@@ -38,15 +35,14 @@ buildPythonPackage rec {
 
   nativeCheckInputs = [
     unittestCheckHook
-  ]
-  ++ lib.flatten (lib.attrValues optional-dependencies);
+  ];
 
-  meta = with lib; {
+  meta = {
     changelog = "https://github.com/nose-devs/nose2/blob/${version}/docs/changelog.rst";
     description = "Test runner for Python";
     mainProgram = "nose2";
     homepage = "https://github.com/nose-devs/nose2";
-    license = licenses.bsd0;
+    license = lib.licenses.bsd0;
     maintainers = [ ];
   };
 }