[Bug 852003] Re: USC fails to launch in non-admin user account if there's a private PPA

[Stefano Bagnatica]

I also had this issue, inside the non-admin user. If can be useful, this
is my trace:

ubuntuone-control-panel-gtk 
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/ubuntuone-control-panel/ubuntuone/controlpanel/gui/gtk/gui.py", line 1573, in on_show_management_panel
    self.management.load()
  File "/usr/lib/python2.7/dist-packages/ubuntuone-control-panel/ubuntuone/controlpanel/gui/gtk/gui.py", line 1502, in load
    self.services.load()
  File "/usr/lib/python2.7/dist-packages/ubuntuone-control-panel/ubuntuone/controlpanel/logger.py", line 82, in inner
    res = f(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/ubuntuone-control-panel/ubuntuone/controlpanel/gui/gtk/gui.py", line 1173, in load
    logger.info('load: has_desktopcouch? %r', self.has_desktopcouch)
  File "/usr/lib/python2.7/dist-packages/ubuntuone-control-panel/ubuntuone/controlpanel/gui/gtk/gui.py", line 1145, in has_desktopcouch
    return self.package_manager.is_installed(DESKTOPCOUCH_PKG)
  File "/usr/lib/python2.7/dist-packages/ubuntuone-control-panel/ubuntuone/controlpanel/gui/gtk/package_manager.py", line 49, in is_installed
    cache = apt.Cache()
  File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 93, in __init__
    self.open(progress)
  File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 140, in open
    self._list.read_main_list()
SystemError: E:Apertura di /etc/apt/sources.list.d/private-ppa.launchpad.net_commercial-ppa-uploaders_fullcircle-issue-50_ubuntu.list - ifstream::ifstream (13: Permesso negato)

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https://bugs.launchpad.net/bugs/852003

Title:
  USC fails to launch in non-admin user account if there's a private PPA

Status in “python-apt” package in Ubuntu:
  Confirmed
Status in “software-center” package in Ubuntu:
  Confirmed

Bug description:
  Ubuntu Software Center 4.1.23.2, Ubuntu 11.10 beta 1

  1. Create an admin user account, and a non-admin user account, in addition to the account you're using now.
  2. Subscribe to a private PPA. (For example, purchase some software.)
  3. Switch to the admin user account, and launch Ubuntu Software Center.
  4. Switch to the non-admin user account, and launch Ubuntu Software Center.

  What happens:
  3. USC launches.
  4. USC fails to launch, with this traceback:
  ------------
  Traceback (most recent call last):
    File "/usr/bin/software-center", line 151, in <module>
      app = SoftwareCenterAppGtk3(datadir, xapian_base_path, options, args)
    File "/usr/share/software-center/softwarecenter/ui/gtk3/app.py", line 206, in __init__
      self.cache.open()
    File "/usr/share/software-center/softwarecenter/db/pkginfo_impl/aptcache.py", line 209, in open
      self._cache = apt.Cache(GtkMainIterationProgress())
    File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 93, in __init__
      self.open(progress)
    File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 140, in open
      self._list.read_main_list()
  SystemError: E:Opening /etc/apt/sources.list.d/private-ppa.launchpad.net_whatever_ubuntu.list - ifstream::ifstream (13: Permission denied)
  ------------

  What should happen:
  4. USC should launch, just not showing the contents of the private PPA.

  Bug 746625 (currently marked Invalid) is the equivalent bug in apt.

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