bpo-43827: Make arguments to abc.ABCMeta.__new__ pos-only (#25385)

To avoid conflicts with `__init__subclass__`.

1 files changed, 1 insertions, 1 deletions

diff --git a/Lib/abc.py b/Lib/abc.py
index 3c552ce..42048dd 100644
--- a/Lib/abc.py
+++ b/Lib/abc.py
@@ -102,7 +102,7 @@ else:
         implementations defined by the registering ABC be callable (not
         even via super()).
         """
-        def __new__(mcls, name, bases, namespace, **kwargs):
+        def __new__(mcls, name, bases, namespace, /, **kwargs):
             cls = super().__new__(mcls, name, bases, namespace, **kwargs)
             _abc_init(cls)
             return cls