Resolve Python 3.12 deprecation notice (#2959)

* Resolve Python 3.12 deprecation notice

* Fix typing issue

* Fixed linting

* Update ASGI tests setting port explicitly

* Remove uvicorn limit

* Python 3.8/3.9 tests in ASGI module

sanic/request/types.py

@@ -83,7 +83,7 @@
     )
 else:
     sanic_type = TypeVar("sanic_type")
-ctx_type = TypeVar("ctx_type")
+ctx_type = TypeVar("ctx_type", default=SimpleNamespace)
 
 
 class Request(Generic[sanic_type, ctx_type]):

sanic/touchup/schemes/ode.py

@@ -67,8 +67,7 @@ def visit_Expr(self, node: Expr) -> Any:
 
         if isinstance(func, Attribute) and func.attr == "dispatch":
             event = args[0]
-            if hasattr(event, "s"):
-                event_name = getattr(event, "value", event.s)
+            if event_name := getattr(event, "value", None):
                 if self._not_registered(event_name):
                     logger.debug(
                         f"Disabling event: {event_name}",

setup.py

@@ -125,7 +125,7 @@ def str_to_bool(val: str) -> bool:
     "mypy",
     "docutils",
     "pygments",
-    "uvicorn<0.15.0",
+    "uvicorn",
     "slotscheck>=0.8.0,<1",
     types_ujson,
 ]

tests/test_asgi.py

@@ -1,3 +1,4 @@
+import asyncio
 import logging
 
 from collections import deque, namedtuple
@@ -18,6 +19,8 @@
 from sanic.server.websockets.connection import WebSocketConnection
 from sanic.signals import RESERVED_NAMESPACES
 
+from .conftest import get_port
+
 
 try:
     from unittest.mock import AsyncMock
@@ -53,6 +56,9 @@ def transport(message_stack, receive, send):
 
 @pytest.fixture
 def protocol(transport):
+    loop = asyncio.new_event_loop()
+    asyncio.set_event_loop(loop)
+    transport.loop = loop
     return transport.get_protocol()
 
 
@@ -91,7 +97,9 @@ class CustomServer(uvicorn.Server):
         def install_signal_handlers(self):
             pass
 
-    config = uvicorn.Config(app=app, loop="asyncio", limit_max_requests=0)
+    config = uvicorn.Config(
+        app=app, loop="asyncio", limit_max_requests=0, port=get_port()
+    )
     server = CustomServer(config=config)
 
     start_message = (
@@ -189,7 +197,9 @@ class CustomServer(uvicorn.Server):
         def install_signal_handlers(self):
             pass
 
-    config = uvicorn.Config(app=app, loop="asyncio", limit_max_requests=0)
+    config = uvicorn.Config(
+        app=app, loop="asyncio", limit_max_requests=0, port=get_port()
+    )
     server = CustomServer(config=config)
 
     start_message = (
@@ -261,7 +271,9 @@ class CustomServer(uvicorn.Server):
         def install_signal_handlers(self):
             pass
 
-    config = uvicorn.Config(app=app, loop="asyncio", limit_max_requests=0)
+    config = uvicorn.Config(
+        app=app, loop="asyncio", limit_max_requests=0, port=get_port()
+    )
     server = CustomServer(config=config)
 
     with pytest.warns(UserWarning) as records:

tests/test_response.py

@@ -709,7 +709,10 @@ async def handler(request: Request):
         "response has at least partially been sent."
     )
 
-    error_msg2 = "Response stream was ended, no more response data is allowed to be sent."
+    error_msg2 = (
+        "Response stream was ended, no more response "
+        "data is allowed to be sent."
+    )
 
     with caplog.at_level(ERROR):
         _, response = app.test_client.get("/")