RustPython · youknowone · Dec 27, 2025 · Dec 26, 2025 · Dec 26, 2025
diff --git a/Lib/test/test_builtin.py b/Lib/test/test_builtin.py
@@ -153,8 +153,6 @@ def check_iter_pickle(self, it, seq, proto):
         it = pickle.loads(d)
         self.assertEqual(list(it), seq[1:])
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     def test_import(self):
         __import__('sys')
         __import__('time')

diff --git a/Lib/test/test_import/__init__.py b/Lib/test/test_import/__init__.py
@@ -1403,8 +1403,6 @@ def test_absolute_circular_submodule(self):
             str(cm.exception),
         )
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     def test_unwritable_module(self):
         self.addCleanup(unload, "test.test_import.data.unwritable")
         self.addCleanup(unload, "test.test_import.data.unwritable.x")

diff --git a/Lib/test/test_importlib/import_/test___package__.py b/Lib/test/test_importlib/import_/test___package__.py
@@ -56,8 +56,6 @@ def test_using___name__(self):
                                          '__path__': []})
         self.assertEqual(module.__name__, 'pkg')
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     def test_warn_when_using___name__(self):
         with self.assertWarns(ImportWarning):
             self.import_module({'__name__': 'pkg.fake', '__path__': []})
@@ -75,8 +73,6 @@ def test_spec_fallback(self):
         module = self.import_module({'__spec__': FakeSpec('pkg.fake')})
         self.assertEqual(module.__name__, 'pkg')
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     def test_warn_when_package_and_spec_disagree(self):
         # Raise a DeprecationWarning if __package__ != __spec__.parent.
         with self.assertWarns(DeprecationWarning):

diff --git a/Lib/test/test_importlib/import_/test_helpers.py b/Lib/test/test_importlib/import_/test_helpers.py
@@ -126,8 +126,6 @@ def test_gh86298_loader_is_none_and_spec_loader_is_none(self):
             ValueError,
             _bootstrap_external._bless_my_loader, bar.__dict__)
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     def test_gh86298_no_spec(self):
         bar = ModuleType('bar')
         bar.__loader__ = object()
@@ -137,8 +135,6 @@ def test_gh86298_no_spec(self):
                 DeprecationWarning,
                 _bootstrap_external._bless_my_loader, bar.__dict__)
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     def test_gh86298_spec_is_none(self):
         bar = ModuleType('bar')
         bar.__loader__ = object()
@@ -148,8 +144,6 @@ def test_gh86298_spec_is_none(self):
                 DeprecationWarning,
                 _bootstrap_external._bless_my_loader, bar.__dict__)
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     def test_gh86298_no_spec_loader(self):
         bar = ModuleType('bar')
         bar.__loader__ = object()
@@ -159,8 +153,6 @@ def test_gh86298_no_spec_loader(self):
                 DeprecationWarning,
                 _bootstrap_external._bless_my_loader, bar.__dict__)
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     def test_gh86298_loader_and_spec_loader_disagree(self):
         bar = ModuleType('bar')
         bar.__loader__ = object()

diff --git a/Lib/test/test_importlib/import_/test_meta_path.py b/Lib/test/test_importlib/import_/test_meta_path.py
@@ -30,8 +30,6 @@ def test_continuing(self):
             with util.import_state(meta_path=[first, second]):
                 self.assertIs(self.__import__(mod_name), second.modules[mod_name])
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     def test_empty(self):
         # Raise an ImportWarning if sys.meta_path is empty.
         module_name = 'nothing'

diff --git a/Lib/test/test_importlib/import_/test_path.py b/Lib/test/test_importlib/import_/test_path.py
@@ -68,8 +68,6 @@ def test_path_hooks(self):
             self.assertIn(path, sys.path_importer_cache)
             self.assertIs(sys.path_importer_cache[path], importer)
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
     def test_empty_path_hooks(self):
         # Test that if sys.path_hooks is empty a warning is raised,
         # sys.path_importer_cache gets None set, and PathFinder returns None.

diff --git a/crates/vm/src/warn.rs b/crates/vm/src/warn.rs
@@ -67,8 +67,15 @@ fn get_warnings_attr(
             Err(_) => return Ok(None),
         }
     } else {
-        // TODO: finalizing support
-        return Ok(None);
+        // Check sys.modules for already-imported warnings module
+        // This is what CPython does with PyImport_GetModule
+        match vm.sys_module.get_attr(identifier!(vm, modules), vm) {
+            Ok(modules) => match modules.get_item(vm.ctx.intern_str("warnings"), vm) {
+                Ok(module) => module,
+                Err(_) => return Ok(None),
+            },
+            Err(_) => return Ok(None),
+        }
     };
     Ok(Some(module.get_attr(attr_name, vm)?))
 }
@@ -320,9 +327,13 @@ fn call_show_warning(
         return Err(vm.new_type_error("unable to get warnings.WarningMessage"));
     };
 
+    // Create a Warning instance by calling category(message)
+    // This is what warnings module does
+    let warning_instance = category.as_object().call((message,), vm)?;
+
     let msg = warnmsg_cls.call(
         vec![
-            message.into(),
+            warning_instance,
             category.into(),
             filename.into(),
             vm.new_pyobj(lineno),