From 547933dabaa56b3d9c244c8302252f3b638463d2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny@gentoo.org>
Date: Mon, 17 Jan 2022 16:06:32 +0100
Subject: [PATCH] Require typing-extensions on py<3.8 only (#269)

typing.Literal is available since Python 3.8.  Use it instead of
requiring typing-extensions for systems that no longer have Python 3.7.
---
 pytest_asyncio/plugin.py | 7 ++++++-
 setup.cfg                | 2 +-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/pytest_asyncio/plugin.py b/pytest_asyncio/plugin.py
index 7a7c8dd5..7abbd6bd 100644
--- a/pytest_asyncio/plugin.py
+++ b/pytest_asyncio/plugin.py
@@ -5,6 +5,7 @@
 import functools
 import inspect
 import socket
+import sys
 import warnings
 from typing import (
     Any,
@@ -24,7 +25,11 @@
 )
 
 import pytest
-from typing_extensions import Literal
+
+if sys.version_info >= (3, 8):
+    from typing import Literal
+else:
+    from typing_extensions import Literal
 
 _R = TypeVar("_R")
 
diff --git a/setup.cfg b/setup.cfg
index f05526bd..952a1dbe 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -39,7 +39,7 @@ setup_requires =
 
 install_requires =
   pytest >= 6.1.0
-  typing-extensions >= 4.0
+  typing-extensions >= 4.0; python_version < "3.8"
 
 [options.extras_require]
 testing =