[Bug 737623] Re: ubuntu software center doesn't open

[Launchpad Bug Tracker]

[Expired for software-center (Ubuntu) because there has been no activity
for 60 days.]

** Changed in: software-center (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/737623

Title:
  ubuntu software center doesn't open

Status in “software-center” package in Ubuntu:
  Expired

Bug description:
  ubuntu software canter won't opet...this is terminal message:
  Traceback (most recent call last):
    File "/usr/share/software-center/softwarecenter/apt/aptcache.py", line 105, 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:Type 'wget' is not known on line 39 in source list /etc/apt/sources.list
  Traceback (most recent call last):
    File "/usr/bin/software-center", line 90, in <module>
      app = SoftwareCenterApp(datadir, xapian_base_path, options, args)
    File "/usr/share/software-center/softwarecenter/app.py", line 316, 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 321, in __init__
      self._update_channel_list()
    File "/usr/share/software-center/softwarecenter/view/viewswitcher.py", line 395, in _update_channel_list
      self._update_channel_list_installed_view()
    File "/usr/share/software-center/softwarecenter/view/viewswitcher.py", line 448, in _update_channel_list_installed_view
      if (pkgname in self.cache and
    File "/usr/share/software-center/softwarecenter/apt/aptcache.py", line 128, in __contains__
      return self._cache.__contains__(k)
  AttributeError: 'NoneType' object has no attribute '__contains__'

  __________________________________________________________________________________
  I don't know what to do...help,please

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