quart-flask-patch fails on Python 3.14 #7
Description
Here's a simple test script
import quart_flask_patch
from quart import Quart
app = Quart(__name__)
@app.route("/")
async def hello_world():
return "Hello, World"
app.run()In Python 3.13 the script above works fine, in Python 3.14 I get the following exception
$ python test.py
* Serving Quart app 'test'
* Debug mode: False
* Please use an ASGI server (e.g. Hypercorn) directly in production
* Running on http://127.0.0.1:5000 (CTRL + C to quit)
Traceback (most recent call last):
File "/Users/eric/Documents/blah/test.py", line 10, in <module>
app.run()
~~~~~~~^^
File "/Users/eric/Documents/blah/.venv/lib/python3.14/site-packages/quart/app.py", line 878, in run
loop.run_until_complete(asyncio.gather(*tasks))
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/Cellar/[email protected]/3.14.2/Frameworks/Python.framework/Versions/3.14/lib/python3.14/asyncio/base_events.py", line 719, in run_until_complete
return future.result()
~~~~~~~~~~~~~^^
File "/opt/homebrew/Cellar/[email protected]/3.14.2/Frameworks/Python.framework/Versions/3.14/lib/python3.14/asyncio/tasks.py", line 289, in __step_run_and_handle_result
result = coro.send(None)
File "/Users/eric/Documents/blah/.venv/lib/python3.14/site-packages/hypercorn/asyncio/__init__.py", line 45, in serve
await worker_serve(
wrap_app(app, config.wsgi_max_body_size, mode), config, shutdown_trigger=shutdown_trigger
)
File "/Users/eric/Documents/blah/.venv/lib/python3.14/site-packages/hypercorn/asyncio/run.py", line 85, in worker_serve
await lifespan.wait_for_startup()
File "/Users/eric/Documents/blah/.venv/lib/python3.14/site-packages/hypercorn/asyncio/lifespan.py", line 93, in wait_for_startup
await asyncio.wait_for(self.startup.wait(), timeout=self.config.startup_timeout)
File "/opt/homebrew/Cellar/[email protected]/3.14.2/Frameworks/Python.framework/Versions/3.14/lib/python3.14/asyncio/tasks.py", line 487, in wait_for
async with timeouts.timeout(timeout):
~~~~~~~~~~~~~~~~^^^^^^^^^
File "/opt/homebrew/Cellar/[email protected]/3.14.2/Frameworks/Python.framework/Versions/3.14/lib/python3.14/asyncio/timeouts.py", line 88, in __aenter__
raise RuntimeError("Timeout should be used inside a task")
RuntimeError: Timeout should be used inside a task
Task was destroyed but it is pending!
task: <Task pending name='Task-2' coro=<observe_changes() running at /Users/eric/Documents/blah/.venv/lib/python3.14/site-packages/quart/utils.py:120> wait_for=<Future pending cb=[Task.__wakeup()]> cb=[gather.<locals>._done_callback() at /opt/homebrew/Cellar/[email protected]/3.14.2/Frameworks/Python.framework/Versions/3.14/lib/python3.14/asyncio/tasks.py:810]>
Task was destroyed but it is pending!
task: <Task pending name='Task-3' coro=<Lifespan.handle_lifespan() running at /Users/eric/Documents/blah/.venv/lib/python3.14/site-packages/hypercorn/asyncio/lifespan.py:56> wait_for=<Future pending cb=[Task.__wakeup()]>>
[2025-12-12 00:35:01 +0800] [4476] [ERROR] ASGI Framework Lifespan error, shutdown without Lifespan support
Traceback (most recent call last):
File "/opt/homebrew/Cellar/[email protected]/3.14.2/Frameworks/Python.framework/Versions/3.14/lib/python3.14/asyncio/queues.py", line 186, in get
GeneratorExit
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/eric/Documents/blah/.venv/lib/python3.14/site-packages/hypercorn/asyncio/lifespan.py", line 56, in handle_lifespan
await self.app(
...<5 lines>...
)
File "/Users/eric/Documents/blah/.venv/lib/python3.14/site-packages/hypercorn/app_wrappers.py", line 34, in __call__
File "/Users/eric/Documents/blah/.venv/lib/python3.14/site-packages/quart/app.py", line 1735, in __call__
await self.asgi_app(scope, receive, send)
File "/Users/eric/Documents/blah/.venv/lib/python3.14/site-packages/quart/app.py", line 1761, in asgi_app
await asgi_handler(receive, send)
File "/Users/eric/Documents/blah/.venv/lib/python3.14/site-packages/quart/asgi.py", line 362, in __call__
File "/Users/eric/Documents/blah/.venv/lib/python3.14/site-packages/hypercorn/asyncio/lifespan.py", line 109, in asgi_receive
return await self.app_queue.get()
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/Cellar/[email protected]/3.14.2/Frameworks/Python.framework/Versions/3.14/lib/python3.14/asyncio/queues.py", line 188, in get
File "/opt/homebrew/Cellar/[email protected]/3.14.2/Frameworks/Python.framework/Versions/3.14/lib/python3.14/asyncio/futures.py", line 164, in cancel
File "/opt/homebrew/Cellar/[email protected]/3.14.2/Frameworks/Python.framework/Versions/3.14/lib/python3.14/asyncio/futures.py", line 179, in __schedule_callbacks
File "/opt/homebrew/Cellar/[email protected]/3.14.2/Frameworks/Python.framework/Versions/3.14/lib/python3.14/asyncio/base_events.py", line 827, in call_soon
self._check_closed()
File "/opt/homebrew/Cellar/[email protected]/3.14.2/Frameworks/Python.framework/Versions/3.14/lib/python3.14/asyncio/base_events.py", line 550, in _check_closed
raise RuntimeError('Event loop is closed')
RuntimeError: Event loop is closed
<sys>:0: RuntimeWarning: coroutine 'Event.wait' was never awaited