FS#70142 - [jupyterlab] Startup crash after update of `python-jupyter_packaging` from 0.7.12 to 0.8.0

Attached to Project: Community Packages
Opened by Nathan Marshak (n8xm) - Wednesday, 24 March 2021, 07:30 GMT
Last edited by Antonio Rojas (arojas) - Wednesday, 24 March 2021, 17:22 GMT
Task Type Bug Report
Category Packages
Status Closed
Assigned To Antonio Rojas (arojas)
Architecture All
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No



Jupyter Lab will not start after update of the dependency `python-jupyter_packaging` from version 0.7.12-1 to 0.8.0-1. Downgrading back to 0.7.12-1 fixes it.

Additional info:
* `jupyterlab` version 3.0.12-1
* `python-jupyter_packaging` version 0.8.0-1
* Output of running `jupyter lab` attached. The key line to pay attention to is: `pkg_resources.DistributionNotFound: The 'jupyter_packaging~=0.7.3' distribution was not found and is required by jupyterlab`

Steps to reproduce:
1) Install `jupyterlab` version 3.0.12-1, which should automatically install the dependency `python-jupyter_packaging`, whose current version is 0.8.0-1.
2) Run `jupyter lab`.

Workaround: Downgrade `python-jupyter_packaging` to 0.7.12-1.
This task depends upon

Closed by  Antonio Rojas (arojas)
Wednesday, 24 March 2021, 17:22 GMT
Reason for closing:  Fixed
Additional comments about closing:  jupyterlab 3.0.12-2