python312Packages.simpy: modernise, unbreak with Python >= 3.13

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

@@ -1,12 +1,14 @@
 {
-  buildPythonPackage,
-  fetchPypi,
-  isPy27,
   lib,
+  stdenv,
+  buildPythonPackage,
+  isPy27,
+  fetchPypi,
   setuptools,
   setuptools-scm,
   py,
   pytestCheckHook,
+  pythonAtLeast,
 }:
 
 buildPythonPackage rec {
@@ -21,22 +23,40 @@ buildPythonPackage rec {
     hash = "sha256-BtB1CniEsR4OjiDOC8fG1O1fF0PUVmlTQNE/3/lQAaY=";
   };
 
-  nativeBuildInputs = [
+  build-system = [
     setuptools
     setuptools-scm
   ];
 
+  pythonImportsCheck = [ "simpy" ];
+
   nativeCheckInputs = [
     py
     pytestCheckHook
   ];
 
-  meta = with lib; {
+  pytestFlags = [
+    "tests"
+  ];
+
+  disabledTests =
+    lib.optionals (pythonAtLeast "3.13") [
+      # Failing on python >= 3.13
+      # FAILED tests/test_exceptions.py::test_exception_chaining - AssertionError: Traceback mismatch
+      "test_exception_chaining"
+    ]
+    ++ lib.optionals stdenv.hostPlatform.isDarwin [
+      "test_rt"
+      "test_rt_multiple_call"
+      "test_rt_slow_sim_no_error"
+    ];
+
+  meta = {
     downloadPage = "https://github.com/simpx/simpy";
     homepage = "https://simpy.readthedocs.io/en/${version}/";
     description = "Process-based discrete-event simulation framework based on standard Python";
-    license = [ licenses.mit ];
-    maintainers = with maintainers; [
+    license = [ lib.licenses.mit ];
+    maintainers = with lib.maintainers; [
       dmrauh
       shlevy
     ];