[Bug 1731334] Re: update-notifier-common upgrade :debconf.py not found

[Kris M]

About a week ago I got
kris at kris-Z97X-UD3H:~$ sudo apt remove ttf-mscorefonts-installer[sudo] password for kris: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages will be REMOVED:
  ttf-mscorefonts-installer
0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
2 not fully installed or removed.
After this operation, 94.2 kB disk space will be freed.
Do you want to continue? [Y/n] 
(Reading database ... 240310 files and directories currently installed.)
Removing ttf-mscorefonts-installer (3.6ubuntu2) ...
Setting up update-notifier-common (3.186) ...
chown: cannot access '/var/lib/update-notifier/package-data-downloads/partial/': No such file or directory
dpkg: error processing package update-notifier-common (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 update-notifier-common
E: Sub-process /usr/bin/dpkg returned an error code (1)
kris at kris-Z97X-UD3H:~$

after I had changed something in /var/lib/update-notifier/package-data-
downloads/

I had to restore (clonezilla) to get past problem.

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https://bugs.launchpad.net/bugs/1731334

Title:
  update-notifier-common upgrade :debconf.py not found

Status in update-notifier package in Ubuntu:
  Confirmed

Bug description:
  Today I did a fresh instalation of new branch development ubuntu
  beaver, intended to help with some tests... So, after the
  installation, I switched on cannonical partners and proposed
  repositoryes and I gave an apt upgrade and dist-upgrade and restarted
  the computer...  After this I tried to install flashplugin-installer
  and I got the follow messages from apt process:

  Configuring update-notifier-common (3.186) ...
  Traceback (most recent call last):
    File "/usr/lib/update-notifier/package-data-downloader", line 26, in <module>
      import debconf
  ModuleNotFoundError: No module named 'debconf'
  dpkg: erro ao processar o pacote update-notifier-common (--configure):
   installed update-notifier-common package post-installation script subprocess returned error exit status 1

  I had to remove the update-notifier-common and with it, update-
  notifier, ubuntu-desktop, the unconfigured flashplugin-installer and
  some two oher dependencies that I dont remember.

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