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calls asyncio.get_event_loop() in a way that will fail on 3.14 #45

@graingert

Description

@graingert

see traceback

$ textual console
Traceback (most recent call last):
  File "/home/graingert/.virtualenvs/textual314/bin/textual", line 6, in <module>
    sys.exit(run())
             ~~~^^
  File "/home/graingert/.virtualenvs/textual314/lib/python3.14/site-packages/click/core.py", line 1157, in __call__
    return self.main(*args, **kwargs)
           ~~~~~~~~~^^^^^^^^^^^^^^^^^
  File "/home/graingert/.virtualenvs/textual314/lib/python3.14/site-packages/click/core.py", line 1078, in main
    rv = self.invoke(ctx)
  File "/home/graingert/.virtualenvs/textual314/lib/python3.14/site-packages/click/core.py", line 1688, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
                           ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
  File "/home/graingert/.virtualenvs/textual314/lib/python3.14/site-packages/click/core.py", line 1434, in invoke
    return ctx.invoke(self.callback, **ctx.params)
           ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/graingert/.virtualenvs/textual314/lib/python3.14/site-packages/click/core.py", line 783, in invoke
    return __callback(*args, **kwargs)
  File "/home/graingert/projects/textual-dev/src/textual_dev/cli.py", line 45, in console
    _run_devtools(verbose=verbose, exclude=exclude, port=port)
    ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/graingert/projects/textual-dev/src/textual_dev/server.py", line 54, in _run_devtools
    loop=asyncio.get_event_loop(),
         ~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/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'.

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