Bug#986143: openstack-dashboard: fails to upgrade from 'buster': KeyError: 'django' in "/usr/lib/python3/dist-packages/django/template/utils.py", line 65

[Andreas Beckmann]

On 30/03/2021 17.33, Thomas Goirand wrote:
Ah, sh**... What do you suggest then? (even: what do you suggest I test
in a VM...)

I just tried all packages involved in the failed upgrade one by one and 
activated the openstack-dashboard trigger after each one.

python3-novaclient is our culprit.

Use a buster chroot with openstack-dashboard and install 
python3-novaclient/bullseye to reproduce.

Andreas