the-littlest-jupyterhub ModuleNotFoundError: No module named 'jupyter

Bug description

On first install of tljh on Ubuntu 22.04.3 LTS, the page "Your server is starting up" after logging in fails with "Spawn failed: Server at http://127.0.0.1:45679/user/marc/ didn't respond in 30 seconds".

Looking at the logs with sudo journalctl -u jupyter-<name-of-user> I see the trace

Feb 22 11:22:39 grove systemd[1]: Started /opt/tljh/user/bin/jupyterhub-singleuser.
Feb 22 11:22:39 grove jupyterhub-singleuser[1664364]: Traceback (most recent call last):
Feb 22 11:22:39 grove jupyterhub-singleuser[1664364]:   File "/opt/tljh/user/bin/jupyterhub-singleuser", line 5, in <module>
Feb 22 11:22:39 grove jupyterhub-singleuser[1664364]:     from jupyterhub.singleuser import main
Feb 22 11:22:39 grove jupyterhub-singleuser[1664364]:   File "/opt/tljh/user/lib/python3.10/site-packages/jupyterhub/singleuser/__init__.py", line 17, in <module>
Feb 22 11:22:39 grove jupyterhub-singleuser[1664364]:     from .mixins import HubAuthenticatedHandler, make_singleuser_app
Feb 22 11:22:39 grove jupyterhub-singleuser[1664364]:   File "/opt/tljh/user/lib/python3.10/site-packages/jupyterhub/singleuser/mixins.py", line 48, in <module>
Feb 22 11:22:39 grove jupyterhub-singleuser[1664364]:     from ._disable_user_config import _disable_user_config, _exclude_home
Feb 22 11:22:39 grove jupyterhub-singleuser[1664364]:   File "/opt/tljh/user/lib/python3.10/site-packages/jupyterhub/singleuser/_disable_user_config.py", line 24, in <module>
Feb 22 11:22:39 grove jupyterhub-singleuser[1664364]:     from jupyter_core import paths
Feb 22 11:22:39 grove jupyterhub-singleuser[1664364]: ModuleNotFoundError: No module named 'jupyter_core'
Feb 22 11:22:39 grove systemd[1]: jupyter-marc.service: Main process exited, code=exited, status=1/FAILURE
Feb 22 11:22:39 grove systemd[1]: jupyter-marc.service: Failed with result 'exit-code'.

How to reproduce

I installed tljh with these commands with the base conda environment

python3 -m pip install jupyterhub
npm install -g configurable-http-proxy
python3 -m pip install notebook

Your personal set up

OS: Ubuntu 22.04.3 LTS Python: 3.10.12

Full environment

apturl==0.5.2
bcrypt==3.2.0
blinker==1.4
Brlapi==0.8.3
certifi==2020.6.20
chardet==4.0.0
click==8.0.3
colorama==0.4.4
command-not-found==0.3
cryptography==3.4.8
cupshelpers==1.0
dbus-python==1.2.18
defer==1.0.6
distro==1.7.0
distro-info==1.1+ubuntu0.2
duplicity==0.8.21
fasteners==0.14.1
future==0.18.2
httplib2==0.20.2
idna==3.3
importlib-metadata==4.6.4
jeepney==0.7.1
keyring==23.5.0
language-selector==0.1
launchpadlib==1.10.16
lazr.restfulclient==0.14.4
lazr.uri==1.0.6
lockfile==0.12.2
louis==3.20.0
macaroonbakery==1.3.1
Mako==1.1.3
MarkupSafe==2.0.1
monotonic==1.6
more-itertools==8.10.0
netifaces==0.11.0
oauthlib==3.2.0
olefile==0.46
packaging==21.3
paramiko==2.9.3
pexpect==4.8.0
Pillow==9.0.1
protobuf==3.12.4
psutil==5.9.0
ptyprocess==0.7.0
pycairo==1.20.1
pycups==2.0.1
PyGObject==3.42.1
PyJWT==2.3.0
pymacaroons==0.13.0
PyNaCl==1.5.0
pyparsing==2.4.7
pyRFC3339==1.1
python-apt==2.4.0+ubuntu2
python-dateutil==2.8.1
python-debian==0.1.43+ubuntu1.1
pytz==2022.1
pyxdg==0.27
PyYAML==5.4.1
reportlab==3.6.8
requests==2.25.1
screen-resolution-extra==0.0.0
SecretStorage==3.3.1
six==1.16.0
ssh-import-id==5.11
systemd-python==234
ubuntu-advantage-tools==8001
ubuntu-drivers-common==0.0.0
ufw==0.36.1
unattended-upgrades==0.1
urllib3==1.26.5
usb-creator==0.3.7
wadllib==1.3.6
xdg==5
xkit==0.0.0
zipp==1.0.0```
</details>

Feb 22 '24 19:02 mbacvanski

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