python-lazr.delegates causes 'No module named restfulclient.errors' from apport-bug

[jbatista]

Binary package hint: python-lazr.delegates

Similarly to Bug #696075 , the package python-lazr.delegates breaks ubuntu-bug (apport-bug) in Lucid Lynx.

Further information:
ubuntu@lucid:~$ lsb_release -rd
Description: Ubuntu 10.04.1 LTS
Release: 10.04
ubuntu@lucid:~$ apt-cache policy python-lazr.delegates
python-lazr.delegates:
  Installed: (none)
  Candidate: 1.1.0-0ubuntu1
  Version table:
     1.1.0-0ubuntu1 0
        500 http://pt.archive.ubuntu.com/ubuntu/ lucid/universe Packages
ubuntu@lucid:~$

[Robert Collins (lifeless)]

How does it break it? Can we get a backtrace or similar please?

[jbatista (jmnbatista)]

Hi Robert,

I'm appending a console session and the output of strace. Let me know if this is enough to continue or if further information is necessary.

[jbatista (jmnbatista)]

Console session log. Notice that apport-bug produces the version number if python-lazr.delegates is not installed, whereas when the latter is installed no operation is possible with apport-bug.

[jbatista (jmnbatista)]

This is the strace log when python-lazr.delegates is installed.

[jbatista (jmnbatista)]

Sorry, I forgot to include the stack trace... :-*

[Robert Collins (lifeless)]

Hi, that looks like a strace not a stack dump, but thats ok - the console session gives us something to go on. Thanks!

[Robert Collins (lifeless)]

'ubuntu@lucid:~$ apport-bug --version
Could not import module, is a package upgrade in progress? Error: No module named restfulclient.errors'

[jbatista (jmnbatista)]

Further information (I'm not knowledgeable about Python, so I was scratching my head when you asked for a stack trace). Here's a console session output. When python.lazr-delegates is uninstalled, you can import * from lazr.restfulclient without getting an ImportError. See attachment.

[Gary Poster (gary)]

This is a packaging issue, almost certainly dealing with the problematic Python namespace packages.

[Logan Rosen (logan)]

I cannot reproduce this in Raring. Can you still reproduce this in your Ubuntu installation, jbatista?

[jbatista (jmnbatista)]

Hi logan, I confirm that this bug persists in python-lazr.delegates. If this package is installed in Lucid (amd64), it breaks apport-bug.
I just did a rehearsal and installed python-lazr.delegates and attempted to run apport-bug.
1) I requested a ubuntu-bug (apport-bug) version,
2) installed python-lazr.delegates,
3) ran ubuntu-bug again and reproduced problem (I confirm it persists),
4) uninstalled python-lazr.delegates,
5) ran ubuntu-bug again without a problem.

The console session output follows:

ubuntu@lucid:~$ ### STEP 1 #########
ubuntu@lucid:~$ ubuntu-bug --version
1.13.3
ubuntu@lucid:~$ dpkg -l apport*
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Nome Versão Descrição
+++-===========================-===========================-======================================================================
ii apport 1.13.3-0ubuntu2.1 automatically generate crash reports for debugging
un apport-cli <none> (sem descrição disponível)
ii apport-gtk 1.13.3-0ubuntu2.1 GTK+ frontend for the apport crash report system
un apport-kde <none> (sem descrição disponível)
ii apport-retrace 1.13.3-0ubuntu2.1 tools for reprocessing Apport crash reports
ii apport-symptoms 0.9 symptom scripts for apport
ubuntu@lucid:~$ ### STEP 2 #########
ubuntu@lucid:~$ sudo apt-get install python-lazr.delegates
A ler as listas de pacotes... Pronto
A construir árvore de dependências
A ler a informação de estado... Pronto
Serão instalados os seguintes NOVOS pacotes:
  python-lazr.delegates
0 pacotes actualizados, 1 pacotes novos instalados, 0 a remover e 1 não actualizados.
É necessário obter 0B/8768B de arquivos.
Após esta operação, serão utilizados 147kB adicionais de espaço em disco.
Selecting previously unselected package python-lazr.delegates.
(A ler a base de dados ... 1288521 ficheiros e directórios actualmente instalados.)
A descompactar python-lazr.delegates (desde .../python-lazr.delegates_1.1.0-0ubuntu1_all.deb) ...
A instalar python-lazr.delegates (1.1.0-0ubuntu1) ...
A processar 'triggers' para python-central ...
localepurge: Disk space freed in /usr/share/locale: 0 KiB
localepurge: Disk space freed in /usr/share/man: 0 KiB
localepurge: Disk space freed in /usr/share/gnome/help: 0 KiB
localepurge: Disk space freed in /usr/share/omf: 0 KiB
localepurge: Disk space freed in /usr/share/doc/kde/HTML: 0 KiB

Total disk space freed by localepurge: 0 KiB

ubuntu@lucid:~$ ### STEP 3 #########
ubuntu@lucid:~$ ubuntu-bug --version
Could not import module, is a package upgrade in progress? Error: No module named restfulclient.errors
ubuntu@lucid:~$ ### STEP 4 #########
ubuntu@lucid:~$ sudo apt-get remove python-lazr.delegates
A ler as listas de pacotes... Pronto
A construir árvore de dependências
A ler a informação de estado... Pronto
Serão REMOVIDOS os seguintes pacotes:
  python-la...