some new features

.venv/lib/python3.12/site-packages/importlib_resources/tests/compat/py312.py

@@ -0,0 +1,18 @@
+import contextlib
+
+from .py39 import import_helper
+
+
+@contextlib.contextmanager
+def isolated_modules():
+    """
+    Save modules on entry and cleanup on exit.
+    """
+    (saved,) = import_helper.modules_setup()
+    try:
+        yield
+    finally:
+        import_helper.modules_cleanup(saved)
+
+
+vars(import_helper).setdefault('isolated_modules', isolated_modules)

.venv/lib/python3.12/site-packages/importlib_resources/tests/compat/py39.py

@@ -0,0 +1,13 @@
+"""
+Backward-compatability shims to support Python 3.9 and earlier.
+"""
+
+from jaraco.test.cpython import from_test_support, try_import
+
+import_helper = try_import('import_helper') or from_test_support(
+    'modules_setup', 'modules_cleanup', 'DirsOnSysPath'
+)
+os_helper = try_import('os_helper') or from_test_support('temp_dir')
+warnings_helper = try_import('warnings_helper') or from_test_support(
+    'ignore_warnings', 'check_warnings'
+)