[Bug 1723822] Re: uncaught TypeError triggers ValueError

[Brian Murray]

The issue with apport is that if the function package_versions is called
in hookutils and packages is empty there is no handling for that so then
it ends up crashing when trying to create the map. Once that is fixed
apport will continue to produce a problem report even though the
nautilus hook is broken.

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Title:
  uncaught TypeError triggers ValueError

Status in Apport:
  Fix Released
Status in apport package in Ubuntu:
  Triaged
Status in nautilus package in Ubuntu:
  Triaged

Bug description:
  $ ubuntu-bug nautilus
  ERROR: hook /usr/share/apport/package-hooks/source_nautilus.py crashed:
  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/apport/report.py", line 198, in _run_hook
      symb['add_info'](report, ui)
  TypeError: add_info() takes 1 positional argument but 2 were given

  During handling of the above exception, another exception occurred:

  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/apport/report.py", line 203, in _run_hook
      symb['add_info'](report)
    File "/usr/share/apport/package-hooks/source_nautilus.py", line 23, in add_info
      report["usr_lib_nautilus"] = package_versions(*sorted(plugin_packages))
    File "/usr/lib/python3/dist-packages/apport/hookutils.py", line 785, in package_versions
      map(max, [map(len, t) for t in zip(*versions)])
  ValueError: not enough values to unpack (expected 2, got 0)
  This tool has been deprecated, use 'gio open' instead.
  See 'gio help open' for more info.

  $ Created new window in existing browser session.

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: apport 2.20.7-0ubuntu3
  ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
  Uname: Linux 4.13.0-16-generic x86_64
  ApportVersion: 2.20.7-0ubuntu3
  Architecture: amd64
  CrashReports:
   640:121:119:20593327:2017-10-14 08:49:43.994080376 -0700:2017-10-14 08:49:24.682136558 -0700:/var/crash/_usr_bin_gnome-shell.121.crash
   640:0:119:712257:2017-10-13 22:55:49.843941428 -0700:2017-10-13 22:55:48.723911385 -0700:/var/crash/_usr_lib_udisks2_udisksd.0.crash
   640:1000:119:432238:2017-10-14 07:48:01.498643348 -0700:2017-10-14 07:48:00.714643372 -0700:/var/crash/_usr_lib_gvfs_gvfsd-mtp.1000.crash
   664:1000:119:0:2017-10-13 19:55:40.447393054 -0700:2017-10-13 19:55:40.447393054 -0700:/var/crash/_usr_lib_gvfs_gvfsd-mtp.1000.upload
   600:112:119:0:2017-10-13 19:55:42.247460153 -0700:2017-10-13 19:55:42.247460153 -0700:/var/crash/_usr_lib_gvfs_gvfsd-mtp.1000.uploaded
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Oct 15 17:52:08 2017
  InstallationDate: Installed on 2017-10-03 (12 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170926)
  PackageArchitecture: all
  SourcePackage: apport
  UpgradeStatus: No upgrade log present (probably fresh install)

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