bpo-44605: Teach @total_ordering() to work with metaclasses (GH-27633) (GH-27640)
diff --git a/Lib/test/test_functools.py b/Lib/test/test_functools.py
index 78a8a5f..fbf5578 100644
--- a/Lib/test/test_functools.py
+++ b/Lib/test/test_functools.py
@@ -1163,6 +1163,34 @@ def test_pickle(self):
method_copy = pickle.loads(pickle.dumps(method, proto))
self.assertIs(method_copy, method)
+
+ def test_total_ordering_for_metaclasses_issue_44605(self):
+
+ @functools.total_ordering
+ class SortableMeta(type):
+ def __new__(cls, name, bases, ns):
+ return super().__new__(cls, name, bases, ns)
+
+ def __lt__(self, other):
+ if not isinstance(other, SortableMeta):
+ pass
+ return self.__name__ < other.__name__
+
+ def __eq__(self, other):
+ if not isinstance(other, SortableMeta):
+ pass
+ return self.__name__ == other.__name__
+
+ class B(metaclass=SortableMeta):
+ pass
+
+ class A(metaclass=SortableMeta):
+ pass
+
+ self.assertTrue(A < B)
+ self.assertFalse(A > B)
+
+
@functools.total_ordering
class Orderable_LT:
def __init__(self, value):