Merge pull request RustPython#3303 from youknowone/winreg

`winreg` uses `#[pymodule]`

Author: youknowone

Lib/test/test_enum.py

@@ -2921,6 +2921,7 @@ class Color(StrMixin, AllMixin, IntFlag):
 
     # TODO: RUSTPYTHON
     @unittest.expectedFailure
+    @unittest.skipIf(sys.platform == "win32", "TODO: RUSTPYTHON, inconsistent test result on Windows due to threading")
     @support.reap_threads
     def test_unique_composite(self):
         # override __eq__ to be identity only