bpo-46469: Make asyncio generic classes return GenericAlias (GH-30777)

* bpo-46469: Make asyncio generic classes return GenericAlias

* 📜🤖 Added by blurb_it.

* Update Misc/NEWS.d/next/Library/2022-01-22-05-05-08.bpo-46469.plUab5.rst

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/Lib/test/test_asyncio/test_queues.py b/Lib/test/test_asyncio/test_queues.py
index 63a9a5f270..b1a53b859c 100644
--- a/Lib/test/test_asyncio/test_queues.py
+++ b/Lib/test/test_asyncio/test_queues.py
@@ -1,9 +1,8 @@
 """Tests for queues.py"""
 
 import unittest
-from unittest import mock
-
 import asyncio
+from types import GenericAlias
 from test.test_asyncio import utils as test_utils
 
 
@@ -74,6 +73,11 @@ class QueueBasicTests(_QueueTestBase):
     def test_str(self):
         self._test_repr_or_str(str, False)
 
+    def test_generic_alias(self):
+        q = asyncio.Queue[int]
+        self.assertEqual(q.__args__, (int,))
+        self.assertIsInstance(q, GenericAlias)
+
     def test_empty(self):
         q = asyncio.Queue()
         self.assertTrue(q.empty())