[PKG-Openstack-devel] Bug#822907: openstack-dashboard: fails to upgrade from 'jessie': ValueError: Unable to configure handler 'null': Cannot resolve 'django.utils.log.NullHandler': No module named NullHandler

[Thomas Goirand]

Hi,

My colleague Ivan found out that the issue lies in the
local_setttings.py, which contains the bad Django class
django.utils.log.NullHandler, which isn't working with Django 1.9
anymore. So the solution is to fix local_settings.py on the fly in the
preinst. Fix will be coming shortly to do that.

Cheers,

Thomas Goirand (zigo)