Version 0.6.3-1 of knack is marked for autoremoval from testing on Wed 18 Dec 2019. It depends (transitively) on python-multidict, affected by #943615. You should try to prevent the removal by fixing these RC bugs.
Last update: 2019-11-19
Standards version of the package is outdated.
The package should be updated to follow the last version of Debian Policy
(Standards-Version 4.4.1 instead of