Comment 6 for bug 471378

I had this exact problem when upgrading from 9.10 to 10.04 beta tonight.

I had to use the provided patch to fix UpdateManager.py. Strange..

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rmiller@liptip:~$ sudo update-manager -d
[sudo] password for rmiller:
Sorry, try again.
[sudo] password for rmiller:
extracting 'lucid.tar.gz'
authenticate 'lucid.tar.gz' against 'lucid.tar.gz.gpg'
Traceback (most recent call last):
  File "/tmp/tmppJyGdN/lucid", line 7, in <module>
    sys.exit(main())
  File "/tmp/tmppJyGdN/DistUpgradeMain.py", line 132, in main
    if app.run():
  File "/tmp/tmppJyGdN/DistUpgradeController.py", line 1635, in run
    return self.fullUpgrade()
  File "/tmp/tmppJyGdN/DistUpgradeController.py", line 1609, in fullUpgrade
    if not self.doDistUpgrade():
  File "/tmp/tmppJyGdN/DistUpgradeController.py", line 1019, in doDistUpgrade
    res = self.cache.commit(fprogress,iprogress)
  File "/tmp/tmppJyGdN/DistUpgradeCache.py", line 239, in commit
    apt.Cache.commit(self, fprogress, iprogress)
  File "/usr/lib/python2.6/dist-packages/apt/cache.py", line 314, in commit
    res = self.installArchives(pm, installProgress)
  File "/usr/lib/python2.6/dist-packages/apt/cache.py", line 289, in installArchives
    res = installProgress.run(pm)
  File "/tmp/tmppJyGdN/DistUpgradeView.py", line 190, in run
    res = os.WEXITSTATUS(self.waitChild())
  File "/tmp/tmppJyGdN/DistUpgradeViewGtk.py", line 292, in waitChild
    self.updateInterface()
  File "/tmp/tmppJyGdN/DistUpgradeViewGtk.py", line 299, in updateInterface
    InstallProgress.updateInterface(self)
  File "/usr/lib/python2.6/dist-packages/apt/progress/__init__.py", line 277, in updateInterface
    status_str.strip())
  File "/tmp/tmppJyGdN/DistUpgradeViewGtk.py", line 282, in statusChange
    self.parent._webkit_view.get_load_status() == 2):
AttributeError: 'webkit.WebView' object has no attribute 'get_load_status'
rmiller@liptip:~$ sudo update-manager -d
[sudo] password for rmiller:

(process:11100): Gtk-WARNING **: Locale not supported by C library.
 Using the fallback 'C' locale.
Traceback (most recent call last):
  File "/usr/bin/update-manager", line 107, in <module>
    app = UpdateManager(data_dir, options)
  File "/usr/lib/python2.6/dist-packages/UpdateManager/UpdateManager.py", line 119, in __init__
    logging.exception("setlocale failed")
NameError: global name 'logging' is not defined
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