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-rw-r--r--Lib/abc.py4
-rw-r--r--Lib/test/test_abc.py12
2 files changed, 14 insertions, 2 deletions
diff --git a/Lib/abc.py b/Lib/abc.py
index 1cbf96a..43a34a0 100644
--- a/Lib/abc.py
+++ b/Lib/abc.py
@@ -129,8 +129,8 @@ class ABCMeta(type):
# external code.
_abc_invalidation_counter = 0
- def __new__(mcls, name, bases, namespace):
- cls = super().__new__(mcls, name, bases, namespace)
+ def __new__(mcls, name, bases, namespace, **kwargs):
+ cls = super().__new__(mcls, name, bases, namespace, **kwargs)
# Compute set of abstract method names
abstracts = {name
for name, value in namespace.items()
diff --git a/Lib/test/test_abc.py b/Lib/test/test_abc.py
index e1765f0..4bc8382 100644
--- a/Lib/test/test_abc.py
+++ b/Lib/test/test_abc.py
@@ -404,5 +404,17 @@ class TestABC(unittest.TestCase):
self.assertEqual(B.counter, 1)
+class TestABCWithInitSubclass(unittest.TestCase):
+ def test_works_with_init_subclass(self):
+ saved_kwargs = {}
+ class ReceivesClassKwargs:
+ def __init_subclass__(cls, **kwargs):
+ super().__init_subclass__()
+ saved_kwargs.update(kwargs)
+ class Receiver(ReceivesClassKwargs, abc.ABC, x=1, y=2, z=3):
+ pass
+ self.assertEqual(saved_kwargs, dict(x=1, y=2, z=3))
+
+
if __name__ == "__main__":
unittest.main()