Package: libpython3.14-stdlib
Version: 3.14.6-1
Severity: normal
Dear Matthias Klose,
trying to restart and run a jupyter python notebook kernel fails and I see the
following traceback:
[E 13:01:45.847 NotebookApp] Timeout should be used inside a task
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/jupyter_client/manager.py", line 88,
in wrapper
out = await method(self, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/jupyter_client/manager.py", line
557, in _async_shutdown_kernel
await self._async_finish_shutdown(restart=restart)
File "/usr/lib/python3/dist-packages/jupyter_client/manager.py", line
480, in _async_finish_shutdown
await asyncio.wait_for(
self._async_wait(pollinterval=pollinterval), timeout=waittime / 2
)
File "/usr/lib/python3.14/asyncio/tasks.py", line 487, in wait_for
async with timeouts.timeout(timeout):
~~~~~~~~~~~~~~~~^^^^^^^^^
File "/usr/lib/python3.14/asyncio/timeouts.py", line 89, in __aenter__
raise RuntimeError("Timeout should be used inside a task")
RuntimeError: Timeout should be used inside a task
[E 13:01:45.852 NotebookApp] Exception restarting kernel
Traceback (most recent call last):
File
"/usr/lib/python3/dist-packages/notebook/services/kernels/handlers.py", line 89,
in post
yield maybe_future(km.restart_kernel(kernel_id))
File "/usr/lib/python3/dist-packages/tornado/gen.py", line 783, in run
value = future.result()
File "/usr/lib/python3.14/asyncio/futures.py", line 208, in result
raise self._exception.with_traceback(self._exception_tb)
File "/usr/lib/python3.14/asyncio/tasks.py", line 289, in
__step_run_and_handle_result
result = coro.send(None)
File
"/usr/lib/python3/dist-packages/notebook/services/kernels/kernelmanager.py",
line 314, in restart_kernel
await maybe_future(self.pinned_superclass.restart_kernel(self,
kernel_id, now=now))
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/jupyter_core/utils/__init__.py",
line 171, in wrapped
return _runner_map[name].run(inner)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^
File "/usr/lib/python3/dist-packages/jupyter_core/utils/__init__.py",
line 128, in run
return fut.result(None)
~~~~~~~~~~^^^^^^
File "/usr/lib/python3.14/concurrent/futures/_base.py", line 454, in
result
return self.__get_result()
~~~~~~~~~~~~~~~~~^^
File "/usr/lib/python3.14/concurrent/futures/_base.py", line 396, in
__get_result
raise self._exception
File "/usr/lib/python3.14/asyncio/tasks.py", line 289, in
__step_run_and_handle_result
result = coro.send(None)
File
"/usr/lib/python3/dist-packages/jupyter_client/multikernelmanager.py", line 434,
in _async_restart_kernel
await ensure_async(kernel.restart_kernel(now=now))
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
File "/usr/lib/python3/dist-packages/jupyter_core/utils/__init__.py",
line 171, in wrapped
return _runner_map[name].run(inner)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^
File "/usr/lib/python3/dist-packages/jupyter_core/utils/__init__.py",
line 128, in run
return fut.result(None)
~~~~~~~~~~^^^^^^
File "/usr/lib/python3.14/concurrent/futures/_base.py", line 454, in
result
return self.__get_result()
~~~~~~~~~~~~~~~~~^^
File "/usr/lib/python3.14/concurrent/futures/_base.py", line 396, in
__get_result
raise self._exception
File "/usr/lib/python3.14/asyncio/tasks.py", line 289, in
__step_run_and_handle_result
result = coro.send(None)
File "/usr/lib/python3/dist-packages/jupyter_client/manager.py", line
595, in _async_restart_kernel
await self._async_shutdown_kernel(now=now, restart=True)
File "/usr/lib/python3/dist-packages/jupyter_client/manager.py", line 97,
in wrapper
raise e
File "/usr/lib/python3/dist-packages/jupyter_client/manager.py", line 88,
in wrapper
out = await method(self, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/jupyter_client/manager.py", line
557, in _async_shutdown_kernel
await self._async_finish_shutdown(restart=restart)
File "/usr/lib/python3/dist-packages/jupyter_client/manager.py", line
480, in _async_finish_shutdown
await asyncio.wait_for(
self._async_wait(pollinterval=pollinterval), timeout=waittime / 2
)
File "/usr/lib/python3.14/asyncio/tasks.py", line 487, in wait_for
async with timeouts.timeout(timeout):
~~~~~~~~~~~~~~~~^^^^^^^^^
File "/usr/lib/python3.14/asyncio/timeouts.py", line 89, in __aenter__
raise RuntimeError("Timeout should be used inside a task")
RuntimeError: Timeout should be used inside a task
[E 13:01:45.855 NotebookApp] {
"Host": "localhost:8079",
"Accept": "application/json, text/javascript, */*; q=0.01",
"Referer": "http://localhost:8079/notebooks/discrete_laplacian.ipynb";,
"User-Agent": "Mozilla/5.0 (X11; Linux x86_64; rv:152.0) Gecko/20100101
Firefox/152.0"
}
[E 13:01:45.855 NotebookApp] 500 POST
/api/kernels/b875b6cf-ffab-4e7f-8f0f-70f7882f08ea/restart (127.0.0.1)
10.550000ms referer=http://localhost:8079/notebooks/discrete_laplacian.ipynb
Do you have any idea? Does it need some adaption in package
python3-jupyter-client (version 8.8.0-1) (file:
/usr/lib/python3/dist-packages/jupyter_client/manager.py) to work with python 3.14?
Regards,
Jörg.
-- System Information:
Debian Release: forky/sid
APT prefers testing
APT policy: (500, 'testing'), (100, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 7.1.2 (SMP w/8 CPU threads; PREEMPT)
Locale: LANG=C.utf8, LC_CTYPE=C.utf8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: sysvinit (via /sbin/init)
Versions of packages libpython3.14-stdlib depends on:
ii libbz2-1.0 1.0.8-6
ii libc6 2.42-17
ii libdb5.3t64 5.3.28+dfsg2-11
ii libffi8 3.5.2-4
ii liblzma5 5.8.3-1
ii libncursesw6 6.6+20260608-2
ii libpython3.14-minimal 3.14.6-1
ii libreadline8t64 8.3-4
ii libsqlite3-0 3.53.3-1
ii libtinfo6 6.6+20260608-2
ii libuuid1 2.42.2-1
ii libzstd1 1.5.7+dfsg-3+b1
ii media-types 14.0.0
ii netbase 6.5
ii tzdata 2026b-1
libpython3.14-stdlib recommends no packages.
libpython3.14-stdlib suggests no packages.
Versions of some jupyter related packages:
ii jupyter-client 8.8.0-1
ii jupyter-core 5.9.1-1
ii jupyter-notebook 6.4.13-5
ii python3-jupyter-client 8.8.0-1
ii python3-jupyter-core 5.9.1-1
ii python3-jupyterlab-pygments 0.2.2-3
ii python3-jupyterlab-widgets 8.1.5-7
-- no debconf information
