Comment 0 for bug 633626

Binary package hint: software-center

Ubuntu Software Center 2.1.16.1, Ubuntu Maverick

1. sudo cat "deb http://ppa.launchpad.net/tualatrix/ppa/ubuntu main #Ubuntu Tweak Stable Source" > /etc/apt/sources.list.d/ubuntu-tweak-stable.list
2. software-center

What happens:
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Traceback (most recent call last):
  File "/usr/share/software-center/softwarecenter/apt/aptcache.py", line 104, in open
    self._cache = apt.Cache(GtkMainIterationProgress())
  File "/usr/lib/python2.6/dist-packages/apt/cache.py", line 88, in __init__
    self.open(progress)
  File "/usr/lib/python2.6/dist-packages/apt/cache.py", line 130, in open
    self._list.read_main_list()
SystemError: E:Malformed line 1 in source list /etc/apt/sources.list.d/ubuntu-tweak-stable.list (dist parse)
Traceback (most recent call last):
  File "/usr/bin/software-center", line 86, in <module>
    app = SoftwareCenterApp(datadir, xapian_base_path, options, args)
  File "/usr/share/software-center/softwarecenter/app.py", line 308, in __init__
    self.view_switcher = ViewSwitcher(self.view_manager, datadir, self.db, self.cache, self.icons)
  File "/usr/share/software-center/softwarecenter/view/viewswitcher.py", line 59, in __init__
    store = ViewSwitcherList(view_manager, datadir, db, cache, icons)
  File "/usr/share/software-center/softwarecenter/view/viewswitcher.py", line 313, in __init__
    self._update_channel_list()
  File "/usr/share/software-center/softwarecenter/view/viewswitcher.py", line 387, in _update_channel_list
    self._update_channel_list_installed_view()
  File "/usr/share/software-center/softwarecenter/view/viewswitcher.py", line 440, in _update_channel_list_installed_view
    if (pkgname in self.cache and
  File "/usr/share/software-center/softwarecenter/apt/aptcache.py", line 116, in __contains__
    return self._cache.__contains__(k)
AttributeError: 'NoneType' object has no attribute '__contains__'
------------

What should happen: The malformed source is ignored, and Ubuntu Software Center opens ready for use.

Possibly this needs fixing in apt rather than in USC itself.

To recover:
3. sudo rm /etc/apt/sources.list.d/ubuntu-tweak-stable.list