Traceback (most recent call last):
  File "/usr/bin/update-manager", line 106, in <module>
    controler.doPartialUpgrade()
  File "/usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeController.py", line 1672, in doPartialUpgrade
    if not self.askDistUpgrade():
  File "/usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeController.py", line 903, in askDistUpgrade
    self.cache.requiredDownload)
  File "/usr/lib/python2.7/dist-packages/DistUpgrade/DistUpgradeViewGtk3.py", line 648, in confirmChanges
    len(pkg.summary)))])
TypeError: glib.markup_escape_text() takes at most 1 argument (2 given)