software-center crashed with AttributeError in __contains__()

Hi Severin! Thanks for reporting this crash. I've committed a fix for it and the fix will be available with the next development release of Software Center. Thanks again!

This bug was fixed in the package software-center - 2.1.5

---------------
software-center (2.1.5) maverick; urgency=low

  [ Michael Vogt ]
  * softwarecenter/backend/aptd.py:
    - fix in channel adding code
  * merged lp:~mvo/software-center/lazr to support gobject
    based wrapper around lazr.restfulclient apps
  * merged lp:~mmcg069/software-center/pathbar-tweaks,
    many thanks
  * merged lp:~mvo/software-center/appdetails-in-db that
    improve the AppDetails abstraction
  * merged lp:~mvo/software-center/plugin-support (important
    for the oneconf integration)
  * merged lp:~osomon/software-center/close_in_progress
    that fixes LP:#431907, thanks to Olivier Tilloy
  * remove specal cases for partner now that soyuz
    LP: #552560 is fixed (LP: #604693)
  * software-center:
    - fixes in the logging code (thanks to Geliy Sokolov)
  * merged lp:~and471/software-center/dialog-work that improves
    the dialogs (many thanks!)

  [ Gary Lasker ]
  * data/icons/scalable/apps/category-show-all.svg,
    data/icons_unbranded/scalable/apps/category-show-all.svg,
    softwarecenter/view/catview_gtk.py:
    - add custom icon for single-pane dept view "All" button;
      icon created by Dani Planas Armangue, many thanks!
      (LP: #599644)
  * softwarecenter/view/pkgview.py:
    - replace svg icon with png version because the svg version
      has been removed from gnome-icon-theme (LP: #601987)
  * po/POTFILES.in:
    - update to latest set of modules
  * merge lp:~mmcg069/software-center/appdetailsview-gtk, adds
    Matthew McGowan's new gtk-based appdetailsview, many thanks!
    Thanks also to kiwinote and mvo for refactoring for new
    AppDetails class and other changes. Also fixes LP: #578650.
  * softwarecenter/apt/aptcache.py:
    - tweak timeout value when opening the apt cache
      (LP: #602610)
  * merge lp:~mmcg069/software-center/appdetailsview-gtk, fixes
    description parsing error for e.g. The Gimp. Many thanks!
  * softwarecenter/app.py,
    softwarecenter/view/availablepane.py,
    softwarecenter/view/navhistory.py:
    - navigation history fixes
  * data/ui/dialogs.ui,
    softwarecenter/app.py,
    softwarecenter/enums.py,
    softwarecenter/view/appdetailsview.py,
    softwarecenter/view/appdetailsview_gtk.py,
    softwarecenter/view/appdetailsview_webkit.py,
    softwarecenter/view/appview.py,
    softwarecenter/view/softwarepane.py:
    - consolidate install/remove action handling to
      one place, now shows dep package removal dialog
      for all cases; fix response ids for dialogs
 -- Michael Vogt <email address hidden> Fri, 16 Jul 2010 09:14:22 +0200