From c2a83bb41ca6ffd964854d0fe9c6014e5356ad2c Mon Sep 17 00:00:00 2001
From: Lumir Balhar <lbalhar@redhat.com>
Date: Fri, 17 Jan 2025 14:57:03 +0100
Subject: [PATCH] Switch from asyncio.iscoroutinefunction to inspect for Py
 3.14+.

The former causes: DeprecationWarning:
'asyncio.iscoroutinefunction' is deprecated and slated for removal
in Python 3.16; use inspect.iscoroutinefunction() instead.

Fixes: https://github.com/aio-libs/async-lru/issues/635
---
 async_lru/__init__.py | 8 +++++++-
 tests/test_basic.py   | 9 +++++----
 2 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/async_lru/__init__.py b/async_lru/__init__.py
index 228ebad..9b88faf 100644
--- a/async_lru/__init__.py
+++ b/async_lru/__init__.py
@@ -27,6 +27,12 @@
 else:
     from typing_extensions import Self
 
+if sys.version_info >= (3, 14):
+    import inspect
+    iscoroutinefunction = inspect.iscoroutinefunction
+else:
+    iscoroutinefunction = asyncio.iscoroutinefunction
+
 
 __version__ = "2.0.4"
 
@@ -299,7 +305,7 @@ def wrapper(fn: _CBP[_R]) -> _LRUCacheWrapper[_R]:
         while isinstance(origin, (partial, partialmethod)):
             origin = origin.func
 
-        if not asyncio.iscoroutinefunction(origin):
+        if not iscoroutinefunction(origin):
             raise RuntimeError(f"Coroutine function is required, got {fn!r}")
 
         # functools.partialmethod support
diff --git a/tests/test_basic.py b/tests/test_basic.py
index acc57a2..3898f49 100644
--- a/tests/test_basic.py
+++ b/tests/test_basic.py
@@ -1,4 +1,5 @@
 import asyncio
+import inspect
 import platform
 import sys
 from functools import _CacheInfo, partial
@@ -6,7 +7,7 @@
 
 import pytest
 
-from async_lru import _CacheParameters, alru_cache
+from async_lru import _CacheParameters, alru_cache, iscoroutinefunction
 
 
 def test_alru_cache_not_callable() -> None:
@@ -27,7 +28,7 @@ async def test_alru_cache_deco(check_lru: Callable[..., None]) -> None:
     async def coro() -> None:
         pass
 
-    assert asyncio.iscoroutinefunction(coro)
+    assert iscoroutinefunction(coro)
 
     check_lru(coro, hits=0, misses=0, cache=0, tasks=0)
 
@@ -41,7 +42,7 @@ async def test_alru_cache_deco_called(check_lru: Callable[..., None]) -> None:
     async def coro() -> None:
         pass
 
-    assert asyncio.iscoroutinefunction(coro)
+    assert iscoroutinefunction(coro)
 
     check_lru(coro, hits=0, misses=0, cache=0, tasks=0)
 
@@ -56,7 +57,7 @@ async def coro() -> None:
 
     coro_wrapped = alru_cache(coro)
 
-    assert asyncio.iscoroutinefunction(coro_wrapped)
+    assert iscoroutinefunction(coro_wrapped)
 
     check_lru(coro_wrapped, hits=0, misses=0, cache=0, tasks=0)