Comment 18 for bug 1779237

>> Ubuntu printing stack - or why having it installed would cause issues
for simple-scan.
Well, simple-scan does not detect any scanners because HPLIP crashes due to
its incompatibility with the GNOME-desktop (its systray).

simple-scan is dependent on the printer/scanner drivers.

That is why.

2018-07-17 1:45 GMT+01:00 Steve Langasek <email address hidden>:

> > Reason for this is another bug in the hplip package.
> > Please see: https://bugs.launchpad.net/ubuntu/+source/hplip/+bug/1714659
>
> Ok, I'm not sure why you should need to install the hplip-gui package -
> it's in universe and not part of the standard Ubuntu printing stack - or
> why having it installed would cause issues for simple-scan. But in any
> case, installing this over the contents of /usr/share/hplip is invalid.
> Closing this bug as such.
>
> ** Changed in: python3-defaults (Ubuntu)
> Status: Incomplete => Invalid
>
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> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1779237
>
> Title:
> package python3 3.6.5-3ubuntu1 failed to install/upgrade: installed
> python3 package post-installation script subprocess returned error
> exit status 4
>
> Status in python3-defaults package in Ubuntu:
> Invalid
>
> Bug description:
> Only Ubuntu Update
>
> ProblemType: Package
> DistroRelease: Ubuntu 18.04
> Package: python3 3.6.5-3ubuntu1
> ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17
> Uname: Linux 4.15.0-22-generic x86_64
> ApportVersion: 2.20.9-0ubuntu7.2
> Architecture: amd64
> Date: Thu Jun 28 22:51:28 2018
> ErrorMessage: installed python3 package post-installation script
> subprocess returned error exit status 4
> InstallationDate: Installed on 2018-04-13 (76 days ago)
> InstallationMedia: Ubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64
> (20180228)
> Python3Details: /usr/bin/python3.6, Python 3.6.5, python3-minimal,
> 3.6.5-3ubuntu1
> PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal,
> 2.7.15~rc1-1
> RelatedPackageVersions:
> dpkg 1.19.0.5ubuntu2
> apt 1.6.2
> SourcePackage: python3-defaults
> Title: package python3 3.6.5-3ubuntu1 failed to install/upgrade:
> installed python3 package post-installation script subprocess returned
> error exit status 4
> UpgradeStatus: Upgraded to bionic on 2018-05-03 (56 days ago)
>
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