Support Python 3.14 problem

[eiffelcn]

On a brand new project created by uv, that only include Python 3.14, textual, textual-serve, textual-dev. The example command 'uv run textual serve "python -m textual"' will reply "RuntimeError: There is no current event loop in thread 'MainThread'." But everything works fine when switching to Python 3.13.

uv init testproject -p 3.14 # switch to 3.13, everything works fine
cd testproject
uv add textual textual-dev textual-serve
uv run textual serve "python -m textual" # Fail for "RuntimeError: There is no current event loop in thread 'MainThread'."

[AbstractUmbra]

Seconded on this one:

Code

import os

try:
    from textual_serve.server import Server
except ModuleNotFoundError:
    raise RuntimeError("The `web` extra is required to use the web extension.") from None

PORT = int(os.getenv("YUREI_PORT", "8000"))
HOST = os.getenv("YUREI_BIND_ADDRESS", "localhost")

__all__ = ("run_server",)


def run_server() -> None:
    server = Server("yurei", host=HOST, port=PORT)
    server.serve()

Exception

❯ yurei-web
Traceback (most recent call last):
  File "/home/penumbra/projects/phas/.venv/bin/yurei-web", line 10, in <module>
    sys.exit(web_entry())
             ~~~~~~~~~^^
  File "/home/penumbra/projects/phas/yurei/tui/__init__.py", line 14, in web_entry
    run_server()
    ~~~~~~~~~~^^
  File "/home/penumbra/projects/phas/yurei/tui/web.py", line 16, in run_server
    server.serve()
    ~~~~~~~~~~~~^^
  File "/home/penumbra/projects/phas/.venv/lib/python3.14/site-packages/textual_serve/server.py", line 216, in serve
    loop = asyncio.get_event_loop()
  File "/home/penumbra/.local/share/uv/python/cpython-3.14.0b3-linux-x86_64-gnu/lib/python3.14/asyncio/events.py", line 718, in get_event_loop
    raise RuntimeError('There is no current event loop in thread %r.'
                       % threading.current_thread().name)
RuntimeError: There is no current event loop in thread 'MainThread'.

I have this built as a script/"binary" with uv, hence the shortcut names etc.