Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/UpdateManager/Core/MyCache.py", line 265, in get_news_and_changelog
    self.get_changelog(name)
  File "/usr/lib/python2.7/dist-packages/UpdateManager/Core/MyCache.py", line 286, in get_changelog
    changelogs_uri_binary = self._guess_third_party_changelogs_uri_by_binary(name)
  File "/usr/lib/python2.7/dist-packages/UpdateManager/Core/MyCache.py", line 257, in _guess_third_party_changelogs_uri_by_binary
    deb_uri = pkg.candidate.uri
  File "/usr/lib/python2.7/dist-packages/apt/package.py", line 531, in uri
    return iter(self._uris()).next()
StopIteration