Dear list,
using the Sagemath kernel in system’s Juyter recently stopped working. U used to symlink it in the relevant place of my system’s Jupyter installation (FWIW, /usr/local/share/jupyter/kernels/). This stopped working. I tried to follow the documentation <https://doc.sagemath.org/html/en/installation/launching.html#setting-up-sagemath-as-a-jupyter-kernel-in-an-existing-jupyter-notebook-or-jupyterlab-installation>, by installing a copy in my tree : jupyter kernelspec install --user $(sage -sh -c 'ls -d $SAGE_VENV/share/jupyter/kernels/sagemath') --name sagemath, giving : charpent@zen-book-flip:~$ jupyter kernelspec list | grep sagemath sagemath /home/charpent/.local/share/jupyter/kernels/sagemath This also failed too, apparently the same way. FWIW, messages printed by the jupyter lab instance started from a terminal : charpent@zen-book-flip:~$ jupyter lab [W 2025-01-23 12:41:17.572 ServerApp] nbclassic | error adding extension (enabled: True): The module 'nbclassic' could not be found (No module named 'nbclassic'). Are you sure the extension is installed? Traceback (most recent call last): File "/usr/lib/python3/dist-packages/jupyter_server/extension/manager.py", line 323, in add_extension extpkg = ExtensionPackage(name=extension_name, enabled=enabled) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/jupyter_server/extension/manager.py", line 187, in __init__ self._load_metadata() File "/usr/lib/python3/dist-packages/jupyter_server/extension/manager.py", line 202, in _load_metadata raise ExtensionModuleNotFound(msg) from None jupyter_server.extension.utils.ExtensionModuleNotFound: The module 'nbclassic' could not be found (No module named 'nbclassic'). Are you sure the extension is installed? [W 2025-01-23 12:41:17.572 ServerApp] A `_jupyter_server_extension_points` function was not found in notebook_shim. Instead, a `_jupyter_server_extension_paths` function was found and will be used for now. This function name will be deprecated in future releases of Jupyter Server. [I 2025-01-23 12:41:17.575 ServerApp] jupyter_server_mathjax | extension was successfully linked. [I 2025-01-23 12:41:17.579 ServerApp] jupyter_server_terminals | extension was successfully linked. [I 2025-01-23 12:41:17.583 ServerApp] jupyterlab | extension was successfully linked. [W 2025-01-23 12:41:17.747 ServerApp] jupyter_nbextensions_configurator | error adding extension (enabled: True): The module 'jupyter_nbextensions_configurator' could not be found (No module named 'jupyter_nbextensions_configurator'). Are you sure the extension is installed? Traceback (most recent call last): File "/usr/lib/python3/dist-packages/jupyter_server/extension/manager.py", line 323, in add_extension extpkg = ExtensionPackage(name=extension_name, enabled=enabled) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/jupyter_server/extension/manager.py", line 187, in __init__ self._load_metadata() File "/usr/lib/python3/dist-packages/jupyter_server/extension/manager.py", line 202, in _load_metadata raise ExtensionModuleNotFound(msg) from None jupyter_server.extension.utils.ExtensionModuleNotFound: The module 'jupyter_nbextensions_configurator' could not be found (No module named 'jupyter_nbextensions_configurator'). Are you sure the extension is installed? [I 2025-01-23 12:41:17.747 ServerApp] notebook_shim | extension was successfully linked. [I 2025-01-23 12:41:17.846 ServerApp] notebook_shim | extension was successfully loaded. [I 2025-01-23 12:41:17.846 ServerApp] jupyter_server_mathjax | extension was successfully loaded. [I 2025-01-23 12:41:17.847 ServerApp] jupyter_server_terminals | extension was successfully loaded. [I 2025-01-23 12:41:17.849 LabApp] JupyterLab extension loaded from /usr/lib/python3/dist-packages/jupyterlab [I 2025-01-23 12:41:17.849 LabApp] JupyterLab application directory is /usr/share/jupyter/lab [I 2025-01-23 12:41:17.849 LabApp] Extension Manager is 'pypi'. [I 2025-01-23 12:41:17.852 ServerApp] jupyterlab | extension was successfully loaded. [I 2025-01-23 12:41:17.853 ServerApp] Serving notebooks from local directory: /home/charpent [I 2025-01-23 12:41:17.853 ServerApp] Jupyter Server 2.14.2 is running at: [I 2025-01-23 12:41:17.853 ServerApp] http://localhost:8888/lab?token=28698726cb88b90e655576f977e07364d8b2ac2821243c84 [I 2025-01-23 12:41:17.853 ServerApp] http://127.0.0.1:8888/lab?token=28698726cb88b90e655576f977e07364d8b2ac2821243c84 [I 2025-01-23 12:41:17.853 ServerApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation). [C 2025-01-23 12:41:17.872 ServerApp] To access the server, open this file in a browser: file:///home/charpent/.local/share/jupyter/runtime/jpserver-18353-open.html Or copy and paste one of these URLs: http://localhost:8888/lab?token=28698726cb88b90e655576f977e07364d8b2ac2821243c84 http://127.0.0.1:8888/lab?token=28698726cb88b90e655576f977e07364d8b2ac2821243c84 [W 2025-01-23 12:41:21.111 ServerApp] 404 GET /lsp/status?1737632481094 (da6c0f26773b491d9eedd2ccb0e6f6fc@::1) 15.18ms referer=http://localhost:8888/lab [I 2025-01-23 12:41:21.757 LabApp] Build is up to date [I 2025-01-23 12:41:29.668 ServerApp] Creating new notebook in [I 2025-01-23 12:41:30.136 ServerApp] Kernel started: e8a20d8a-3f29-42cd-8953-7b5ba6e01a1a /usr/local/sage-10/local/var/lib/sage/venv-python3.12/bin/sage-venv-config:4: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html __import__('pkg_resources').require('sagemath-standard==10.6b3') Traceback (most recent call last): File "<frozen runpy>", line 198, in _run_module_as_main File "<frozen runpy>", line 88, in _run_code File "/usr/local/sage-10/src/sage/repl/ipython_kernel/__main__.py", line 4, in <module> IPKernelApp.launch_instance(kernel_class=SageKernel) File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/traitlets/config/application.py", line 1074, in launch_instance app.initialize(argv) File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/traitlets/config/application.py", line 118, in inner return method(app, *args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/ipykernel/kernelapp.py", line 707, in initialize self.init_kernel() File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/ipykernel/kernelapp.py", line 555, in init_kernel kernel = kernel_factory( ^^^^^^^^^^^^^^^ File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/traitlets/config/configurable.py", line 583, in instance inst = cls(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^^ File "/usr/local/sage-10/src/sage/repl/ipython_kernel/kernel.py", line 64, in __init__ SageJupyterCustomizations(self.shell) File "/usr/local/sage-10/src/sage/repl/ipython_extension.py", line 591, in __init__ import sage.all # noqa: F401 ^^^^^^^^^^^^^^^ File "/usr/local/sage-10/src/sage/all.py", line 93, in <module> from sage.algebras.all import * File "/usr/local/sage-10/src/sage/algebras/all.py", line 25, in <module> from sage.algebras.quatalg.all import * File "/usr/local/sage-10/src/sage/algebras/quatalg/all.py", line 1, in <module> from sage.algebras.quatalg.quaternion_algebra import QuaternionAlgebra File "/usr/local/sage-10/src/sage/algebras/quatalg/quaternion_algebra.py", line 76, in <module> from . import quaternion_algebra_cython File "sage/algebras/quatalg/quaternion_algebra_cython.pyx", line 1, in init sage.algebras.quatalg.quaternion_algebra_cython # distutils: language = c++ File "sage/matrix/matrix_integer_dense.pyx", line 1, in init sage.matrix.matrix_integer_dense # distutils: extra_compile_args = NTL_CFLAGS M4RI_CFLAGS ImportError: libm4ri-0.0.20200125.so: cannot open shared object file: No such file or directory [I 2025-01-23 12:41:33.123 ServerApp] AsyncIOLoopKernelRestarter: restarting kernel (1/5), new random ports /usr/local/sage-10/local/var/lib/sage/venv-python3.12/bin/sage-venv-config:4: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html __import__('pkg_resources').require('sagemath-standard==10.6b3') Traceback (most recent call last): File "<frozen runpy>", line 198, in _run_module_as_main File "<frozen runpy>", line 88, in _run_code File "/usr/local/sage-10/src/sage/repl/ipython_kernel/__main__.py", line 4, in <module> IPKernelApp.launch_instance(kernel_class=SageKernel) File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/traitlets/config/application.py", line 1074, in launch_instance app.initialize(argv) File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/traitlets/config/application.py", line 118, in inner return method(app, *args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/ipykernel/kernelapp.py", line 707, in initialize self.init_kernel() File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/ipykernel/kernelapp.py", line 555, in init_kernel kernel = kernel_factory( ^^^^^^^^^^^^^^^ File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/traitlets/config/configurable.py", line 583, in instance inst = cls(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^^ File "/usr/local/sage-10/src/sage/repl/ipython_kernel/kernel.py", line 64, in __init__ SageJupyterCustomizations(self.shell) File "/usr/local/sage-10/src/sage/repl/ipython_extension.py", line 591, in __init__ import sage.all # noqa: F401 ^^^^^^^^^^^^^^^ File "/usr/local/sage-10/src/sage/all.py", line 93, in <module> from sage.algebras.all import * File "/usr/local/sage-10/src/sage/algebras/all.py", line 25, in <module> from sage.algebras.quatalg.all import * File "/usr/local/sage-10/src/sage/algebras/quatalg/all.py", line 1, in <module> from sage.algebras.quatalg.quaternion_algebra import QuaternionAlgebra File "/usr/local/sage-10/src/sage/algebras/quatalg/quaternion_algebra.py", line 76, in <module> from . import quaternion_algebra_cython File "sage/algebras/quatalg/quaternion_algebra_cython.pyx", line 1, in init sage.algebras.quatalg.quaternion_algebra_cython # distutils: language = c++ File "sage/matrix/matrix_integer_dense.pyx", line 1, in init sage.matrix.matrix_integer_dense # distutils: extra_compile_args = NTL_CFLAGS M4RI_CFLAGS ImportError: libm4ri-0.0.20200125.so: cannot open shared object file: No such file or directory [I 2025-01-23 12:41:36.141 ServerApp] AsyncIOLoopKernelRestarter: restarting kernel (2/5), new random ports /usr/local/sage-10/local/var/lib/sage/venv-python3.12/bin/sage-venv-config:4: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html __import__('pkg_resources').require('sagemath-standard==10.6b3') Traceback (most recent call last): File "<frozen runpy>", line 198, in _run_module_as_main File "<frozen runpy>", line 88, in _run_code File "/usr/local/sage-10/src/sage/repl/ipython_kernel/__main__.py", line 4, in <module> IPKernelApp.launch_instance(kernel_class=SageKernel) File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/traitlets/config/application.py", line 1074, in launch_instance app.initialize(argv) File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/traitlets/config/application.py", line 118, in inner return method(app, *args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/ipykernel/kernelapp.py", line 707, in initialize self.init_kernel() File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/ipykernel/kernelapp.py", line 555, in init_kernel kernel = kernel_factory( ^^^^^^^^^^^^^^^ File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/traitlets/config/configurable.py", line 583, in instance inst = cls(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^^ File "/usr/local/sage-10/src/sage/repl/ipython_kernel/kernel.py", line 64, in __init__ SageJupyterCustomizations(self.shell) File "/usr/local/sage-10/src/sage/repl/ipython_extension.py", line 591, in __init__ import sage.all # noqa: F401 ^^^^^^^^^^^^^^^ File "/usr/local/sage-10/src/sage/all.py", line 93, in <module> from sage.algebras.all import * File "/usr/local/sage-10/src/sage/algebras/all.py", line 25, in <module> from sage.algebras.quatalg.all import * File "/usr/local/sage-10/src/sage/algebras/quatalg/all.py", line 1, in <module> from sage.algebras.quatalg.quaternion_algebra import QuaternionAlgebra File "/usr/local/sage-10/src/sage/algebras/quatalg/quaternion_algebra.py", line 76, in <module> from . import quaternion_algebra_cython File "sage/algebras/quatalg/quaternion_algebra_cython.pyx", line 1, in init sage.algebras.quatalg.quaternion_algebra_cython # distutils: language = c++ File "sage/matrix/matrix_integer_dense.pyx", line 1, in init sage.matrix.matrix_integer_dense # distutils: extra_compile_args = NTL_CFLAGS M4RI_CFLAGS ImportError: libm4ri-0.0.20200125.so: cannot open shared object file: No such file or directory [I 2025-01-23 12:41:39.156 ServerApp] AsyncIOLoopKernelRestarter: restarting kernel (3/5), new random ports /usr/local/sage-10/local/var/lib/sage/venv-python3.12/bin/sage-venv-config:4: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html __import__('pkg_resources').require('sagemath-standard==10.6b3') Traceback (most recent call last): File "<frozen runpy>", line 198, in _run_module_as_main File "<frozen runpy>", line 88, in _run_code File "/usr/local/sage-10/src/sage/repl/ipython_kernel/__main__.py", line 4, in <module> IPKernelApp.launch_instance(kernel_class=SageKernel) File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/traitlets/config/application.py", line 1074, in launch_instance app.initialize(argv) File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/traitlets/config/application.py", line 118, in inner return method(app, *args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/ipykernel/kernelapp.py", line 707, in initialize self.init_kernel() File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/ipykernel/kernelapp.py", line 555, in init_kernel kernel = kernel_factory( ^^^^^^^^^^^^^^^ File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/traitlets/config/configurable.py", line 583, in instance inst = cls(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^^ File "/usr/local/sage-10/src/sage/repl/ipython_kernel/kernel.py", line 64, in __init__ SageJupyterCustomizations(self.shell) File "/usr/local/sage-10/src/sage/repl/ipython_extension.py", line 591, in __init__ import sage.all # noqa: F401 ^^^^^^^^^^^^^^^ File "/usr/local/sage-10/src/sage/all.py", line 93, in <module> from sage.algebras.all import * File "/usr/local/sage-10/src/sage/algebras/all.py", line 25, in <module> from sage.algebras.quatalg.all import * File "/usr/local/sage-10/src/sage/algebras/quatalg/all.py", line 1, in <module> from sage.algebras.quatalg.quaternion_algebra import QuaternionAlgebra File "/usr/local/sage-10/src/sage/algebras/quatalg/quaternion_algebra.py", line 76, in <module> from . import quaternion_algebra_cython File "sage/algebras/quatalg/quaternion_algebra_cython.pyx", line 1, in init sage.algebras.quatalg.quaternion_algebra_cython # distutils: language = c++ File "sage/matrix/matrix_integer_dense.pyx", line 1, in init sage.matrix.matrix_integer_dense # distutils: extra_compile_args = NTL_CFLAGS M4RI_CFLAGS ImportError: libm4ri-0.0.20200125.so: cannot open shared object file: No such file or directory [I 2025-01-23 12:41:42.172 ServerApp] AsyncIOLoopKernelRestarter: restarting kernel (4/5), new random ports /usr/local/sage-10/local/var/lib/sage/venv-python3.12/bin/sage-venv-config:4: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html __import__('pkg_resources').require('sagemath-standard==10.6b3') Traceback (most recent call last): File "<frozen runpy>", line 198, in _run_module_as_main File "<frozen runpy>", line 88, in _run_code File "/usr/local/sage-10/src/sage/repl/ipython_kernel/__main__.py", line 4, in <module> IPKernelApp.launch_instance(kernel_class=SageKernel) File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/traitlets/config/application.py", line 1074, in launch_instance app.initialize(argv) File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/traitlets/config/application.py", line 118, in inner return method(app, *args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/ipykernel/kernelapp.py", line 707, in initialize self.init_kernel() File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/ipykernel/kernelapp.py", line 555, in init_kernel kernel = kernel_factory( ^^^^^^^^^^^^^^^ File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/traitlets/config/configurable.py", line 583, in instance inst = cls(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^^ File "/usr/local/sage-10/src/sage/repl/ipython_kernel/kernel.py", line 64, in __init__ SageJupyterCustomizations(self.shell) File "/usr/local/sage-10/src/sage/repl/ipython_extension.py", line 591, in __init__ import sage.all # noqa: F401 ^^^^^^^^^^^^^^^ File "/usr/local/sage-10/src/sage/all.py", line 93, in <module> from sage.algebras.all import * File "/usr/local/sage-10/src/sage/algebras/all.py", line 25, in <module> from sage.algebras.quatalg.all import * File "/usr/local/sage-10/src/sage/algebras/quatalg/all.py", line 1, in <module> from sage.algebras.quatalg.quaternion_algebra import QuaternionAlgebra File "/usr/local/sage-10/src/sage/algebras/quatalg/quaternion_algebra.py", line 76, in <module> from . import quaternion_algebra_cython File "sage/algebras/quatalg/quaternion_algebra_cython.pyx", line 1, in init sage.algebras.quatalg.quaternion_algebra_cython # distutils: language = c++ File "sage/matrix/matrix_integer_dense.pyx", line 1, in init sage.matrix.matrix_integer_dense # distutils: extra_compile_args = NTL_CFLAGS M4RI_CFLAGS ImportError: libm4ri-0.0.20200125.so: cannot open shared object file: No such file or directory [I 2025-01-23 12:41:45.189 ServerApp] AsyncIOLoopKernelRestarter: restarting kernel (5/5), new random ports /usr/local/sage-10/local/var/lib/sage/venv-python3.12/bin/sage-venv-config:4: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html __import__('pkg_resources').require('sagemath-standard==10.6b3') Traceback (most recent call last): File "<frozen runpy>", line 198, in _run_module_as_main File "<frozen runpy>", line 88, in _run_code File "/usr/local/sage-10/src/sage/repl/ipython_kernel/__main__.py", line 4, in <module> IPKernelApp.launch_instance(kernel_class=SageKernel) File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/traitlets/config/application.py", line 1074, in launch_instance app.initialize(argv) File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/traitlets/config/application.py", line 118, in inner return method(app, *args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/ipykernel/kernelapp.py", line 707, in initialize self.init_kernel() File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/ipykernel/kernelapp.py", line 555, in init_kernel kernel = kernel_factory( ^^^^^^^^^^^^^^^ File "/usr/local/sage-10/local/var/lib/sage/venv-python3.12/lib/python3.12/site-packages/traitlets/config/configurable.py", line 583, in instance inst = cls(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^^ File "/usr/local/sage-10/src/sage/repl/ipython_kernel/kernel.py", line 64, in __init__ SageJupyterCustomizations(self.shell) File "/usr/local/sage-10/src/sage/repl/ipython_extension.py", line 591, in __init__ import sage.all # noqa: F401 ^^^^^^^^^^^^^^^ File "/usr/local/sage-10/src/sage/all.py", line 93, in <module> from sage.algebras.all import * File "/usr/local/sage-10/src/sage/algebras/all.py", line 25, in <module> from sage.algebras.quatalg.all import * File "/usr/local/sage-10/src/sage/algebras/quatalg/all.py", line 1, in <module> from sage.algebras.quatalg.quaternion_algebra import QuaternionAlgebra File "/usr/local/sage-10/src/sage/algebras/quatalg/quaternion_algebra.py", line 76, in <module> from . import quaternion_algebra_cython File "sage/algebras/quatalg/quaternion_algebra_cython.pyx", line 1, in init sage.algebras.quatalg.quaternion_algebra_cython # distutils: language = c++ File "sage/matrix/matrix_integer_dense.pyx", line 1, in init sage.matrix.matrix_integer_dense # distutils: extra_compile_args = NTL_CFLAGS M4RI_CFLAGS ImportError: libm4ri-0.0.20200125.so: cannot open shared object file: No such file or directory [W 2025-01-23 12:41:48.203 ServerApp] AsyncIOLoopKernelRestarter: restart failed [W 2025-01-23 12:41:48.203 ServerApp] Kernel e8a20d8a-3f29-42cd-8953-7b5ba6e01a1a died, removing from map. [W 2025-01-23 12:42:30.160 ServerApp] Timeout waiting for kernel_info reply from e8a20d8a-3f29-42cd-8953-7b5ba6e01a1a [E 2025-01-23 12:42:30.161 ServerApp] Uncaught exception GET /api/kernels/e8a20d8a-3f29-42cd-8953-7b5ba6e01a1a/channels?session_id=5a47b060-f790-4739-8604-db37da07ab61 (::1) HTTPServerRequest(protocol='http', host='localhost:8888', method='GET', uri='/api/kernels/e8a20d8a-3f29-42cd-8953-7b5ba6e01a1a/channels?session_id=5a47b060-f790-4739-8604-db37da07ab61', version='HTTP/1.1', remote_ip='::1') Traceback (most recent call last): File "/usr/lib/python3/dist-packages/tornado/web.py", line 1790, in _execute result = await result ^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/jupyter_server/services/kernels/websocket.py", line 66, in get await super().get(kernel_id=kernel_id) File "/usr/lib/python3/dist-packages/tornado/websocket.py", line 273, in get await self.ws_connection.accept_connection(self) File "/usr/lib/python3/dist-packages/tornado/websocket.py", line 863, in accept_connection await self._accept_connection(handler) File "/usr/lib/python3/dist-packages/tornado/websocket.py", line 903, in _accept_connection self.selected_subprotocol = handler.select_subprotocol(subprotocols) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/jupyter_server/services/kernels/websocket.py", line 88, in select_subprotocol preferred_protocol = self.connection.kernel_ws_protocol ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ AttributeError: 'NoneType' object has no attribute 'kernel_ws_protocol' [E 2025-01-23 12:42:30.174 ServerApp] { "Host": "localhost:8888", "User-Agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36" } [E 2025-01-23 12:42:30.174 ServerApp] 500 GET /api/kernels/e8a20d8a-3f29-42cd-8953-7b5ba6e01a1a/channels?session_id=5a47b060-f790-4739-8604-db37da07ab61 (da6c0f26773b491d9eedd2ccb0e6f6fc@::1) 60020.64ms referer=None [W 2025-01-23 12:42:30.542 ServerApp] Timeout waiting for kernel_info reply from e8a20d8a-3f29-42cd-8953-7b5ba6e01a1a [E 2025-01-23 12:42:30.543 ServerApp] Uncaught exception GET /api/kernels/e8a20d8a-3f29-42cd-8953-7b5ba6e01a1a/channels?session_id=bdc0b124-69fe-4ee7-a45e-2b9a6d646e51 (127.0.0.1) HTTPServerRequest(protocol='http', host='localhost:8888', method='GET', uri='/api/kernels/e8a20d8a-3f29-42cd-8953-7b5ba6e01a1a/channels?session_id=bdc0b124-69fe-4ee7-a45e-2b9a6d646e51', version='HTTP/1.1', remote_ip='127.0.0.1') Traceback (most recent call last): File "/usr/lib/python3/dist-packages/tornado/web.py", line 1790, in _execute result = await result ^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/jupyter_server/services/kernels/websocket.py", line 66, in get await super().get(kernel_id=kernel_id) File "/usr/lib/python3/dist-packages/tornado/websocket.py", line 273, in get await self.ws_connection.accept_connection(self) File "/usr/lib/python3/dist-packages/tornado/websocket.py", line 863, in accept_connection await self._accept_connection(handler) File "/usr/lib/python3/dist-packages/tornado/websocket.py", line 903, in _accept_connection self.selected_subprotocol = handler.select_subprotocol(subprotocols) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/jupyter_server/services/kernels/websocket.py", line 88, in select_subprotocol preferred_protocol = self.connection.kernel_ws_protocol ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ AttributeError: 'NoneType' object has no attribute 'kernel_ws_protocol' [E 2025-01-23 12:42:30.552 ServerApp] { "Host": "localhost:8888", "User-Agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36" } [E 2025-01-23 12:42:30.552 ServerApp] 500 GET /api/kernels/e8a20d8a-3f29-42cd-8953-7b5ba6e01a1a/channels?session_id=bdc0b124-69fe-4ee7-a45e-2b9a6d646e51 (da6c0f26773b491d9eedd2ccb0e6f6fc@127.0.0.1) 60013.01ms referer=None [W 2025-01-23 12:42:41.739 ServerApp] delete /Untitled4.ipynb [I 2025-01-23 12:42:48.063 ServerApp] Shutting down on /api/shutdown request. [I 2025-01-23 12:42:48.063 ServerApp] Shutting down 4 extensions Is this worth a new issue ? The current issues page for jupyter do not show any recent issue relevant to this. -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To view this discussion visit https://groups.google.com/d/msgid/sage-support/facab13e-9959-4b91-8f30-db3af513b9fcn%40googlegroups.com.
