[Bug 1878284] Re: python3-distro-info on xenial breaks ubuntu-security-status

[Christian Reis]

** Package changed: update-manager (Ubuntu) => update-manager-core
(Ubuntu)

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https://bugs.launchpad.net/bugs/1878284

Title:
  python3-distro-info on xenial breaks ubuntu-security-status

Status in update-manager-core package in Ubuntu:
  New

Bug description:
  Installing python3-distro-info on Ubuntu 16.04 breaks the ubuntu-
  security-status script.

  The script runs before I install python3-distro-info:

  ubuntu at ip-172-31-14-142:~$ ./ubuntu-security-status --universe
  473 packages installed on Ubuntu 16.04 LTS, of which:
    2 packages are from universe/multiverse
  ansible python-selinux
   
   
  Packages from universe (and multiverse) are provided from the official
  Ubuntu archive and subject to patching via ESM.
   
  Run 'apt-cache show ansible' to learn more about that specifc package.

  
  But if I install python3-distro-info, it breaks:

  ubuntu at ip-172-31-14-142:~$ sudo apt install python3-distro-info
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  The following NEW packages will be installed:
    python3-distro-info
  0 upgraded, 1 newly installed, 0 to remove and 78 not upgraded.
  Need to get 8,072 B of archives.
  After this operation, 48.1 kB of additional disk space will be used.
  Get:1 http://us-east-1.ec2.archive.ubuntu.com/ubuntu xenial-updates/main amd64 python3-distro-info all 0.14ubuntu0.1 [8,072 B]
  Fetched 8,072 B in 0s (360 kB/s)         
  Selecting previously unselected package python3-distro-info.
  (Reading database ... 53590 in and directories currently installed.)
  Preparing to unpack .../python3-distro-info_0.14ubuntu0.1_all.deb ...
  Unpacking python3-distro-info (0.14ubuntu0.1) ...
  Setting up python3-distro-info (0.14ubuntu0.1) ...
   
  ubuntu at ip-172-31-14-142:~$ ./ubuntu-security-status --universe
  Traceback (most recent call last):
    File "./ubuntu-security-status", line 224, in <module>
      for r in di._releases if r.series == codename][0]
  AttributeError: 'UbuntuDistroInfo' object has no attribute '_releases'

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