[Bug 1913476] Re: /usr/bin/update-manager:TypeError:/usr/bin/update-manager at 118:start_update:start_available:refresh_cache:update:_make_groups:__contains__

[Brian Murray]

update-manager (1:20.04.10.6) focal; urgency=medium

  * UpdateManager/Core/UpdateList.py: change to a regex from a static list 
    of packages to be grouped under Ubuntu Base (LP: #1902025)
  * Clean up apt cache binary files left behind by tests
  * Rename meta_pkgs to ubuntu_base_pkgs to make it more clear to the
    reader which packages should be included
  * Add tests in to ensure Ubuntu base packages are not grouped when 
    staged for removal (LP: #1912718)

 -- William 'jawn-smith' Wilson <william.wilson at canonical.com>  Wed, 10
Feb 2021 14:39:27 -0600


** Changed in: update-manager (Ubuntu Focal)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1913476

Title:
  /usr/bin/update-manager:TypeError:/usr/bin/update-
  manager at 118:start_update:start_available:refresh_cache:update:_make_groups:__contains__

Status in update-manager package in Ubuntu:
  Fix Released
Status in update-manager source package in Focal:
  Fix Released
Status in update-manager source package in Groovy:
  Fix Released

Bug description:
  The Ubuntu Error Tracker has been receiving reports about a problem regarding update-manager.  This problem was most recently seen with package version 1:20.04.10.3, the problem page at https://errors.ubuntu.com/problem/b4e18d21aa7526e3a98130b1556e4d38ffaff9e0 contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
  If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/.

  [Impact]

   * With update-manager versions 1:20.04.10.3 or 1:20.10.2,
     update-manager would crash while processing the apt
     cache.

  [Test Case]

   * Look at the Error Tracker issues and make sure the 
     versions 1:20.04.11 and 1:20.10.3 do not cause this
     same error.

  [Where problems could occur]

   * If apt is ever processing a package without the name
     field, it couldcause a crash. This scenario would likely
     cause a crash in many other parts of the code other than
     what is being changed here

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