[Bug 1582950] Re: broken apport hook: TypeError: a bytes-like object is required, not 'str'

[Jean-Baptiste Lallement]

Actually on the live session the hook reads /var/log/syslog which has read access for the group adm and after installation it reads /var/log/installer/syslog which does not and the code path is different.
In the former case decoding of utf8 bytes object is already done (the file is read with the function read()) but not in the latter (the file is the output of the command 'cat')

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Title:
  broken apport hook: TypeError: a bytes-like object is required, not
  'str'

Status in apport package in Ubuntu:
  Incomplete
Status in ubiquity package in Ubuntu:
  Invalid
Status in apport source package in Artful:
  Fix Released

Bug description:
  The apport hook for ubiquity appears broken. (Ignore the Wnck error,
  that's bug 1580412).

  $ ubuntu-bug ubiquity
  /usr/share/apport/apport-gtk:16: PyGIWarning: Wnck was imported without specifying a version first. Use gi.require_version('Wnck', '3.0') before import to ensure that the right version gets loaded.
    from gi.repository import GLib, Wnck, GdkX11, Gdk
  dpkg-query: no packages found matching ubiquity
  ERROR: hook /usr/share/apport/package-hooks/source_ubiquity.py crashed:
  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/apport/report.py", line 197, in _run_hook
      symb['add_info'](report, ui)
    File "/usr/share/apport/package-hooks/source_ubiquity.py", line 61, in add_info
      if 'Buffer I/O error on device' in syslog:
  TypeError: a bytes-like object is required, not 'str'

  Thanks

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubiquity (not installed)
  ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
  Uname: Linux 4.4.0-21-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Tue May 17 17:31:33 2016
  InstallationDate: Installed on 2012-10-18 (1307 days ago)
  InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
  SourcePackage: ubiquity
  UpgradeStatus: Upgraded to xenial on 2016-04-30 (17 days ago)

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