Package: jupyterhub
Version: 5.2.1+ds1-2
Severity: normal

Dear Maintainer,

When starting jupyterhub I get this error message

avril 29 10:50:14 systemd[1]: Started jupyterhub.service.
avril 29 10:50:16 python3[4588]: [I 2025-04-29 10:50:16.028 JupyterHub app:3346] Running JupyterHub version 5.2.1
avril 29 10:50:16 python3[4588]: [I 2025-04-29 10:50:16.028 JupyterHub app:3376] Using Authenticator: jupyterhub.auth.PAMAuthenticator-5.2.1
avril 29 10:50:16 python3[4588]: [I 2025-04-29 10:50:16.028 JupyterHub app:3376] Using Spawner: jupyterhub.spawner.LocalProcessSpawner-5.2.1
avril 29 10:50:16 python3[4588]: [I 2025-04-29 10:50:16.028 JupyterHub app:3376] Using Proxy: jupyterhub.proxy.ConfigurableHTTPProxy-5.2.1
avril 29 10:50:16 python3[4588]: /usr/lib/python3/dist-packages/jupyter_events/schema.py:68: JupyterEventsVersionWarning: The `version` property of an event schema must be a stri>
avril 29 10:50:16 python3[4588]: validate_schema(_schema)
avril 29 10:50:16 python3[4588]: [I 2025-04-29 10:50:16.044 JupyterHub app:1831] Loading cookie_secret from /var/lib/jupyterhub/jupyterhub_cookie_secret
avril 29 10:50:16 python3[4588]: [I 2025-04-29 10:50:16.053 JupyterHub dbutil:129] Upgrading sqlite:///jupyterhub.sqlite
avril 29 10:50:16 python3[4588]: [I 2025-04-29 10:50:16.053 JupyterHub dbutil:100] Backing up jupyterhub.sqlite => jupyterhub.sqlite.2025-04-29-105016
avril 29 10:50:16 python3[4588]: [E 2025-04-29 10:50:16.054 JupyterHub app:3912]
avril 29 10:50:16 python3[4588]: Traceback (most recent call last):
avril 29 10:50:16 python3[4588]: File "/usr/lib/python3/dist-packages/jupyterhub/app.py", line 3909, in launch_instance_async
avril 29 10:50:16 python3[4588]: await self.initialize(argv)
avril 29 10:50:16 python3[4588]: File "/usr/lib/python3/dist-packages/jupyterhub/app.py", line 3388, in initialize
avril 29 10:50:16 python3[4588]: self.init_db()
avril 29 10:50:16 python3[4588]: ~~~~~~~~~~~~^^
avril 29 10:50:16 python3[4588]: File "/usr/lib/python3/dist-packages/jupyterhub/app.py", line 2000, in init_db
avril 29 10:50:16 python3[4588]: dbutil.upgrade_if_needed(self.db_url, log=self.log)
avril 29 10:50:16 python3[4588]: ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^
avril 29 10:50:16 python3[4588]: File "/usr/lib/python3/dist-packages/jupyterhub/dbutil.py", line 134, in upgrade_if_needed
avril 29 10:50:16 python3[4588]: upgrade(db_url)
avril 29 10:50:16 python3[4588]: ~~~~~~~^^^^^^^^
avril 29 10:50:16 python3[4588]: File "/usr/lib/python3/dist-packages/jupyterhub/dbutil.py", line 85, in upgrade
avril 29 10:50:16 python3[4588]: check_call(['alembic', '-c', alembic_ini, 'upgrade', revision])
avril 29 10:50:16 python3[4588]: ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
avril 29 10:50:16 python3[4588]: File "/usr/lib/python3.13/subprocess.py", line 414, in check_call
avril 29 10:50:16 python3[4588]: retcode = call(*popenargs, **kwargs) avril 29 10:50:16 python3[4588]: File "/usr/lib/python3.13/subprocess.py", line 395, in call
avril 29 10:50:16 python3[4588]: with Popen(*popenargs, **kwargs) as p:
avril 29 10:50:16 python3[4588]: ~~~~~^^^^^^^^^^^^^^^^^^^^^^ avril 29 10:50:16 python3[4588]: File "/usr/lib/python3.13/subprocess.py", line 1039, in __init__
avril 29 10:50:16 python3[4588]: self._execute_child(args, executable, preexec_fn, close_fds,
avril 29 10:50:16 python3[4588]: ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
avril 29 10:50:16 python3[4588]: pass_fds, cwd, env,
avril 29 10:50:16 python3[4588]: ^^^^^^^^^^^^^^^^^^^
avril 29 10:50:16 python3[4588]: ...<5 lines>...
avril 29 10:50:16 python3[4588]: gid, gids, uid, umask,
avril 29 10:50:16 python3[4588]: ^^^^^^^^^^^^^^^^^^^^^^
avril 29 10:50:16 python3[4588]: start_new_session, process_group)
avril 29 10:50:16 python3[4588]: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
avril 29 10:50:16 python3[4588]: File "/usr/lib/python3.13/subprocess.py", line 1969, in _execute_child
avril 29 10:50:16 python3[4588]: raise child_exception_type(errno_num, err_msg, err_filename)
avril 29 10:50:16 python3[4588]: FileNotFoundError: [Errno 2] No such file or directory: 'alembic'
avril 29 10:50:16 python3[4588]:

It seems to me that python3-alembic is missing in the Depends


-- System Information:
Debian Release: trixie/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 6.12.22-amd64 (SMP w/128 CPU threads; PREEMPT)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages jupyterhub depends on:
ii fonts-font-awesome 5.0.10+really4.7.0~dfsg-4.1
ii libjs-bootstrap 3.4.1+dfsg-4
ii libjs-jquery 3.6.1+dfsg+~3.5.14-1
ii libjs-prototype 1.7.3-2
ii libjs-requirejs 2.3.7+ds+~2.1.37-1
ii node-configurable-http-proxy 4.5.3+~cs15.2.4-3
ii python3 [python3-supported-min] 3.13.3-1
ii python3-alembic 1.13.2-4
ii python3-async-generator 1.10-4
ii python3-bcrypt 4.2.0-2.1+b1
ii python3-certipy 0.1.3-4
ii python3-dateutil 2.9.0-4
ii python3-idna 3.10-1
ii python3-importlib-metadata 8.6.1-1
ii python3-jinja2 3.1.6-1
ii python3-jupyter-events 0.12.0-2
ii python3-notebook 6.4.13-5
ii python3-oauthlib 3.2.2-3
ii python3-packaging 24.2-3
ii python3-pamela 1.0.0-3
ii python3-prometheus-client 0.21.1+ds1-1
ii python3-pydantic 2.10.6-2
ii python3-requests 2.32.3+dfsg-5
ii python3-sqlalchemy 2.0.40+ds1-1
ii python3-tornado 6.4.2-1
ii python3-traitlets 5.14.3+really5.14.3-1

jupyterhub recommends no packages.

jupyterhub suggests no packages.

-- no debconf information

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