[Bug 1800287] Re: Package python3-mock is not available

[Hans Joachim Desserud]

Thanks for taking your time to report this issue and help making Ubuntu
better.

I am not able to reproduce this issue, I was able to install
python3-mock without issues on my 18.04 system. Since you mention that
you have a fresh install, it might be that the package list hasn't been
refreshed. Could you please try running `sudo apt update`? If this
doesn't resolve the issue, could you please attach the output of `apt
policy python3-mock`, this will list the available package version if
any.

One thing to note is that python3-mock is part of the universe repo, so
if you have only main but not universe enabled, this would explain why
it fails to find the package.

** Changed in: python-mock (Ubuntu)
       Status: New => Incomplete

** Tags added: bionic

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https://bugs.launchpad.net/bugs/1800287

Title:
  Package python3-mock is not available

Status in python-mock package in Ubuntu:
  Incomplete

Bug description:
  On a server with a fresh install of Ubuntu 18.04 within the past week,
  I'm unable install the python3-mock package:

  =========
  $ sudo apt-get install python3-mock
  Reading package lists... Done
  Building dependency tree
  Reading state information... Done
  Package python3-mock is not available, but is referred to by another package.
  This may mean that the package is missing, has been obsoleted, or
  is only available from another source

  E: Package 'python3-mock' has no installation candidate
  =========

  I took a stab at installing it manually with "dpkg -i" using the
  package at:

  http://mirrors.kernel.org/ubuntu/pool/universe/p/python-
  mock/python3-mock_2.0.0-3_all.deb

  Once I installed the prereq (python3-pbr), I was able to install from
  the deb package directly. Some other Python3 packages are giving the
  same error (python3-zope.event, python3-configargparse). Doing "apt-
  cache search python3" does reveal quite a few packages that are
  installable, so I'm not sure why these are an issue.

  =======
  $ lsb_release -rd
  Description:    Ubuntu 18.04.1 LTS
  Release:        18.04

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