apt-listchanges crashes with AttributeError, when called with non-package argument

[amichair]

Binary package hint: apt-listchanges

trying to figure out how to use apt-listchanges, I ran:

sudo apt-listchanges libsmbclient samba samba-common smbclient smbfs winbind

and it crashed.

NOTE: rather than sepcifying --apt as accepting "version 2 output from apt", it would be much more productive to give a one-line example of how to actually use it...

ProblemType: Crash
Architecture: i386
Date: Wed May 16 13:03:03 2007
DistroRelease: Ubuntu 7.04
ExecutablePath: /usr/bin/apt-listchanges
InterpreterPath: /usr/bin/python2.5
Package: apt-listchanges 2.72ubuntu6
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/apt-listchanges libsmbclient samba samba-common smbclient smbfs winbind
ProcCwd: /home/amik
ProcEnviron:
 SHELL=/bin/bash
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/X11R6/bin
 LANG=en_US.UTF-8
PythonArgs: ['/usr/bin/apt-listchanges', 'libsmbclient', 'samba', 'samba-common', 'smbclient', 'smbfs', 'winbind']
SourcePackage: apt-listchanges
Uname: Linux kube 2.6.20-15-generic #2 SMP Sun Apr 15 07:36:31 UTC 2007 i686 GNU/Linux

[Daniel Hahler (blueyed)]

Calling apt-listchanges with a non-package argument causes this crash.
apt-listchanges is meant to be called from apt (during upgrade) or manually, but then you'll have to pass a .deb as argument to it.

Just calling apt-listchanges without any arguments will tell you how to use it:
Usage: apt-listchanges [options] {--apt | filename.deb ...}

There are two issues here:
 1. do not crash when e.g. called with "foo" as argument.
 2. support package names as arguments, e.g. "apt-listchanges -a apt" would list the changes for apt. However, this is not trivial (using this without "-a" makes not much sense AFAICS and with -a is lists just the whole changelog)

This bug report should be about case 1, the crash (and improved help). Please create a new bug, if you thing "apt-listchanges <package>" makes sense. Thanks.

[Daniel Hahler (blueyed)]

JFI: "aptitude changelog samba" displays the changelog for the source package samba.
apt-listchanges may include the same functionality when called with a package name or just refer to "aptitude changelog".