https://github.com/python/cpython/commit/feb3e0b19cb03f06364a3f5e970f0861b8883d1c
commit: feb3e0b19cb03f06364a3f5e970f0861b8883d1c
branch: main
author: Stephen Morton <[email protected]>
committer: AlexWaygood <[email protected]>
date: 2024-11-12T09:17:07Z
summary:
gh-126699: allow AsyncIterator to be used as a base for Protocols (#126702)
files:
A Misc/NEWS.d/next/Library/2024-11-11-13-24-22.gh-issue-126699.ONGbMd.rst
M Lib/test/test_typing.py
M Lib/typing.py
diff --git a/Lib/test/test_typing.py b/Lib/test/test_typing.py
index 2f1f9e86a0bce4..244ce1e5da9bd2 100644
--- a/Lib/test/test_typing.py
+++ b/Lib/test/test_typing.py
@@ -4255,6 +4255,9 @@ class CustomProtocol(TestCase, Protocol):
class CustomContextManager(typing.ContextManager, Protocol):
pass
+ class CustomAsyncIterator(typing.AsyncIterator, Protocol):
+ pass
+
def test_non_runtime_protocol_isinstance_check(self):
class P(Protocol):
x: int
diff --git a/Lib/typing.py b/Lib/typing.py
index c924c767042552..8e6381033fd28e 100644
--- a/Lib/typing.py
+++ b/Lib/typing.py
@@ -1940,7 +1940,8 @@ def _allow_reckless_class_checks(depth=2):
_PROTO_ALLOWLIST = {
'collections.abc': [
'Callable', 'Awaitable', 'Iterable', 'Iterator', 'AsyncIterable',
- 'Hashable', 'Sized', 'Container', 'Collection', 'Reversible', 'Buffer',
+ 'AsyncIterator', 'Hashable', 'Sized', 'Container', 'Collection',
+ 'Reversible', 'Buffer',
],
'contextlib': ['AbstractContextManager', 'AbstractAsyncContextManager'],
}
diff --git
a/Misc/NEWS.d/next/Library/2024-11-11-13-24-22.gh-issue-126699.ONGbMd.rst
b/Misc/NEWS.d/next/Library/2024-11-11-13-24-22.gh-issue-126699.ONGbMd.rst
new file mode 100644
index 00000000000000..9741294487d716
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2024-11-11-13-24-22.gh-issue-126699.ONGbMd.rst
@@ -0,0 +1 @@
+Allow :class:`collections.abc.AsyncIterator` to be a base for Protocols.
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