ruamel.yaml==0.15 conflict when running tljh-config

[hpcchris]

I'm getting this error when I try to run tljh-config:

tljh-config show

Traceback (most recent call last): File "/opt/tljh/hub/lib/python3.6/site-packages/pkg_resources/init.py", line 574, in _build_master ws.require(requires) File "/opt/tljh/hub/lib/python3.6/site-packages/pkg_resources/init.py", line 892, in require needed = self.resolve(parse_requirements(requirements)) File "/opt/tljh/hub/lib/python3.6/site-packages/pkg_resources/init.py", line 783, in resolve raise VersionConflict(dist, req).with_context(dependent_req) pkg_resources.ContextualVersionConflict: (ruamel.yaml 0.17.17 (/opt/tljh/hub/lib/python3.6/site-packages), Requirement.parse('ruamel.yaml==0.15.*'), {'the-littlest-jupyterhub'})

During handling of the above exception, another exception occurred:

Traceback (most recent call last): File "/usr/bin/tljh-config", line 6, in from pkg_resources import load_entry_point File "/opt/tljh/hub/lib/python3.6/site-packages/pkg_resources/init.py", line 3088, in @_call_aside File "/opt/tljh/hub/lib/python3.6/site-packages/pkg_resources/init.py", line 3072, in _call_aside f(*args, *kwargs) File "/opt/tljh/hub/lib/python3.6/site-packages/pkg_resources/init.py", line 3101, in _initialize_master_working_set working_set = WorkingSet._build_master() File "/opt/tljh/hub/lib/python3.6/site-packages/pkg_resources/init.py", line 576, in _build_master return cls._build_from_requirements(requires) File "/opt/tljh/hub/lib/python3.6/site-packages/pkg_resources/init.py", line 589, in _build_from_requirements dists = ws.resolve(reqs, Environment()) File "/opt/tljh/hub/lib/python3.6/site-packages/pkg_resources/init.py", line 778, in resolve raise DistributionNotFound(req, requirers) pkg_resources.DistributionNotFound: The 'ruamel.yaml==0.15.' distribution was not found and is required by the-littlest-jupyterhub

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[hpcchris]

Where I'm seeing the error:

$ tljh-config show users: admin:

• chris https: enabled: true letsencrypt: email: chris@usc.edu domains:
  • XXXX.usc.edu

$ curl -L https://tljh.jupyter.org/bootstrap.py | python3 - --admin chris % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 100 13989 100 13989 0 0 120k 0 --:--:-- --:--:-- --:--:-- 120k Existing TLJH installation detected, upgrading... Upgrading pip... Upgrading TLJH installer... Running TLJH installer... Setting up admin users Granting passwordless sudo to JupyterHub admins... Setting up user environment...

==> WARNING: A newer version of conda exists. <== current version: 4.8.1 latest version: 4.10.3

Please update conda by running

$ conda update -n base -c defaults conda

Setting up JupyterHub... Waiting for JupyterHub to come up (1/20 tries) Waiting for JupyterHub to come up (2/20 tries) Waiting for JupyterHub to come up (3/20 tries) Done!

$ tljh-config show Traceback (most recent call last): File "/opt/tljh/hub/lib/python3.6/site-packages/pkg_resources/init.py", line 574, in _build_master ws.require(requires) File "/opt/tljh/hub/lib/python3.6/site-packages/pkg_resources/init.py", line 892, in require needed = self.resolve(parse_requirements(requirements)) File "/opt/tljh/hub/lib/python3.6/site-packages/pkg_resources/init.py", line 783, in resolve raise VersionConflict(dist, req).with_context(dependent_req) pkg_resources.ContextualVersionConflict: (ruamel.yaml 0.17.17 (/opt/tljh/hub/lib/python3.6/site-packages), Requirement.parse('ruamel.yaml==0.15.*'), {'the-littlest-jupyterhub'})

[manics]

I can't reproduce your error. What operating system are you using? It it an official distribution with no modifications, or have you installed other software or customised it in any way?

[hpcchris]

I think it's a pretty vanilla Ubuntu, I got it from a public marketplace associated with our hybrid cloud provider (OpenNebula). They've added some cloud-init style customizations but nothing really profound. I haven't done anything to the image other than installing TLJH.

$ cat /etc/os-release
NAME="Ubuntu"
VERSION="18.04.5 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 18.04.5 LTS"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic

[manics]

I've just noticed you were upgrading an existing TLJH installation. Do you know how old your previous version was?

[hpcchris]

I see this when I log into my hub, before trying an upgrade: JupyterHub 1.4.0 20211119232739

Is that a timestamp showing the last time the installation was touched?

[v-gar]

Hello, I encountered the same error and could it trace down to the file /opt/tljh/hub/lib/python3.8/site-packages/the_littlest_jupyterhub-0.1.egg-info/requires.txt.

It contained the following contents:

backoff
bcrypt
jinja2
jupyterhub-traefik-proxy==0.2.*
passlib
pluggy>0.7<1.0
requests
ruamel.yaml==0.15.*

There you can see that the versions which were bumped in the meantime (i.e. jupyterhub-traefik-proxy, pluggy and ruamel.yaml) are not yet represented. If you change the versions manually based on the dependency changes in the setup.py, the scripts will eventually run:

backoff
bcrypt
jinja2
jupyterhub-traefik-proxy==0.3.*
passlib
pluggy==1.*
requests
ruamel.yaml==0.17.*

I think this happens because the version of the the-littlest-jupyterhub Python package was not bumped after upgrading dependencies here in the repo.