fix: replace async_timeout by asyncio.timeout

async_timeout does not support python 3.11
aio-libs/async-timeout#295

And have two years old annoying bugs:
aio-libs/async-timeout#229
redis#2551

Since asyncio.timeout has been shipped in python 3.11, we should start
using it.

Partially fixes 2551

Author: sileht

Diff for: CHANGES

@@ -1,3 +1,4 @@
+    * Use asyncio.timeout() instead of async_timeout.timeout() for python >= 3.11 (#2602)
     * Add test and fix async HiredisParser when reading during a disconnect() (#2349)
     * Use hiredis-py pack_command if available.
     * Support `.unlink()` in ClusterPipeline

Diff for: redis/asyncio/connection.py

@@ -5,6 +5,7 @@
 import os
 import socket
 import ssl
+import sys
 import threading
 import weakref
 from itertools import chain
@@ -24,7 +25,11 @@
 )
 from urllib.parse import ParseResult, parse_qs, unquote, urlparse
 
-import async_timeout
+if sys.version_info.major >= 3 and sys.version_info.minor >= 11:
+    from asyncio import timeout as async_timeout
+else:
+    from async_timeout import timeout as async_timeout
+
 
 from redis.asyncio.retry import Retry
 from redis.backoff import NoBackoff
@@ -242,7 +247,7 @@ async def can_read_destructive(self) -> bool:
         if self._stream is None:
             raise RedisError("Buffer is closed.")
         try:
-            async with async_timeout.timeout(0):
+            async with async_timeout(0):
                 return await self._stream.read(1)
         except asyncio.TimeoutError:
             return False
@@ -381,7 +386,7 @@ async def can_read_destructive(self):
         if self._reader.gets():
             return True
         try:
-            async with async_timeout.timeout(0):
+            async with async_timeout(0):
                 return await self.read_from_socket()
         except asyncio.TimeoutError:
             return False
@@ -636,7 +641,7 @@ async def connect(self):
 
     async def _connect(self):
         """Create a TCP socket connection"""
-        async with async_timeout.timeout(self.socket_connect_timeout):
+        async with async_timeout(self.socket_connect_timeout):
             reader, writer = await asyncio.open_connection(
                 host=self.host,
                 port=self.port,
@@ -723,7 +728,7 @@ async def on_connect(self) -> None:
     async def disconnect(self, nowait: bool = False) -> None:
         """Disconnects from the Redis server"""
         try:
-            async with async_timeout.timeout(self.socket_connect_timeout):
+            async with async_timeout(self.socket_connect_timeout):
                 self._parser.on_disconnect()
                 if not self.is_connected:
                     return
@@ -828,7 +833,7 @@ async def read_response(
         read_timeout = timeout if timeout is not None else self.socket_timeout
         try:
             if read_timeout is not None:
-                async with async_timeout.timeout(read_timeout):
+                async with async_timeout(read_timeout):
                     response = await self._parser.read_response(
                         disable_decoding=disable_decoding
                     )
@@ -1119,7 +1124,7 @@ def repr_pieces(self) -> Iterable[Tuple[str, Union[str, int]]]:
         return pieces
 
     async def _connect(self):
-        async with async_timeout.timeout(self.socket_connect_timeout):
+        async with async_timeout(self.socket_connect_timeout):
             reader, writer = await asyncio.open_unix_connection(path=self.path)
         self._reader = reader
         self._writer = writer
@@ -1590,7 +1595,7 @@ async def get_connection(self, command_name, *keys, **options):
         # self.timeout then raise a ``ConnectionError``.
         connection = None
         try:
-            async with async_timeout.timeout(self.timeout):
+            async with async_timeout(self.timeout):
                 connection = await self.pool.get()
         except (asyncio.QueueEmpty, asyncio.TimeoutError):
             # Note that this is not caught by the redis client and will be

Diff for: setup.py

@@ -34,7 +34,7 @@
     install_requires=[
         'importlib-metadata >= 1.0; python_version < "3.8"',
         'typing-extensions; python_version<"3.8"',
-        "async-timeout>=4.0.2",
+        'async-timeout>=4.0.2; python_version<"3.11"',
     ],
     classifiers=[
         "Development Status :: 5 - Production/Stable",

Diff for: tests/test_asyncio/test_pubsub.py

@@ -5,7 +5,11 @@
 from typing import Optional
 from unittest.mock import patch
 
-import async_timeout
+if sys.version_info.major >= 3 and sys.version_info.minor >= 11:
+    from asyncio import timeout as async_timeout
+else:
+    from async_timeout import timeout as async_timeout
+
 import pytest
 import pytest_asyncio
 
@@ -21,7 +25,7 @@ def with_timeout(t):
     def wrapper(corofunc):
         @functools.wraps(corofunc)
         async def run(*args, **kwargs):
-            async with async_timeout.timeout(t):
+            async with async_timeout(t):
                 return await corofunc(*args, **kwargs)
 
         return run
@@ -648,7 +652,7 @@ async def test_reconnect_listen(self, r: redis.Redis, pubsub):
 
         async def loop():
             # must make sure the task exits
-            async with async_timeout.timeout(2):
+            async with async_timeout(2):
                 nonlocal interrupt
                 await pubsub.subscribe("foo")
                 while True:
@@ -677,7 +681,7 @@ async def loop_step():
 
         task = asyncio.get_running_loop().create_task(loop())
         # get the initial connect message
-        async with async_timeout.timeout(1):
+        async with async_timeout(1):
             message = await messages.get()
         assert message == {
             "channel": b"foo",
@@ -776,7 +780,7 @@ def callback(message):
             if n == 1:
                 break
             await asyncio.sleep(0.1)
-        async with async_timeout.timeout(0.1):
+        async with async_timeout(0.1):
             message = await messages.get()
         task.cancel()
         # we expect a cancelled error, not the Runtime error
@@ -839,7 +843,7 @@ async def test_reconnect_socket_error(self, r: redis.Redis, method):
         Test that a socket error will cause reconnect
         """
         try:
-            async with async_timeout.timeout(self.timeout):
+            async with async_timeout(self.timeout):
                 await self.mysetup(r, method)
                 # now, disconnect the connection, and wait for it to be re-established
                 async with self.cond:
@@ -868,7 +872,7 @@ async def test_reconnect_disconnect(self, r: redis.Redis, method):
         Test that a manual disconnect() will cause reconnect
         """
         try:
-            async with async_timeout.timeout(self.timeout):
+            async with async_timeout(self.timeout):
                 await self.mysetup(r, method)
                 # now, disconnect the connection, and wait for it to be re-established
                 async with self.cond:
@@ -923,7 +927,7 @@ async def loop_step_get_message(self):
     async def loop_step_listen(self):
         # get a single message via listen()
         try:
-            async with async_timeout.timeout(0.1):
+            async with async_timeout(0.1):
                 async for message in self.pubsub.listen():
                     await self.messages.put(message)
                     return True
@@ -947,7 +951,7 @@ async def test_outer_timeout(self, r: redis.Redis):
         assert pubsub.connection.is_connected
 
         async def get_msg_or_timeout(timeout=0.1):
-            async with async_timeout.timeout(timeout):
+            async with async_timeout(timeout):
                 # blocking method to return messages
                 while True:
                     response = await pubsub.parse_response(block=True)