After some Googling I found similar errors. A proposed fix is to add overwrite-local = 1 to /etc/python/debian_config. I added this to the config file and ran sudo apt-get upgrade. This time things appeared to work, but I had several warnings on screen. Here they are: james@james:~$ sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done The following packages have been kept back: kdemultimedia-kio-plugins 0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded. 1 not fully installed or removed. After this operation, 0B of additional disk space will be used. Do you want to continue [Y/n]? y Setting up python-uniconvertor (1.1.2-1) ... overwriting local files warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/__init__.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/__init__.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/arrow.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/base.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/bezier.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/blend.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/blendgroup.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/clone.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/color.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/compound.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/curveop.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/dashes.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/document.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/ellipse.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/eps.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/external.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/font.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/gradient.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/graphics.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/group.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/guide.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/handle.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/image.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/layer.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/maskgroup.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/pagelayout.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/papersize.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/pattern.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/plugobj.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/properties.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/psdevice.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/rectangle.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/selection.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/selinfo.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Graphics/text.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Lib/__init__.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Lib/dscparser.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Lib/encoding.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Lib/psmisc.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Lib/skcompleter.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Lib/type1.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Lib/units.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Scripting/__init__.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Scripting/registry.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Scripting/script.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/Scripting/wrapper.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/VERSION -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/__init__.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/conf/__init__.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/conf/configurator.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/conf/const.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/events/__init__.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/events/connector.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/events/skexceptions.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/events/undo.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/events/undodict.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/events/warn.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/io/__init__.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/io/load.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/io/loadres.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/managers/__init__.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/managers/colormanager.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/modules/descr.txt -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/plugins/Filters/ailoader.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/plugins/Filters/aisaver.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/plugins/Filters/bziploader.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/plugins/Filters/ccxloader.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/plugins/Filters/cdrloader.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/plugins/Filters/cgmloader.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/plugins/Filters/cgmsaver.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/plugins/Filters/cmxloader.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/plugins/Filters/drawinput.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/plugins/Filters/gziploader.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/plugins/Filters/sk1loader.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/plugins/Filters/sk1saver.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/plugins/Filters/skloader.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/plugins/Filters/sksaver.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/plugins/Filters/svgloader.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/plugins/Filters/svgsaver.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/plugins/Filters/wmfloader.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/plugins/Filters/wmfsaver.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/plugins/Filters/xfigloader.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/plugins/__init__.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/plugins/plugins.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/scripts/__init__.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/scripts/abut_horizontal.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/scripts/abut_vertical.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/scripts/average_points.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/scripts/create_spiral.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/scripts/create_star.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/scripts/create_star_outline.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/scripts/create_text.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/scripts/export_raster.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/scripts/footprints.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/scripts/inspect_beziers.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/scripts/read_gimp_path.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/scripts/reload_image.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/scripts/save_selection.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/scripts/select_same_fill_color.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/scripts/select_same_line_color.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/scripts/simple_separation.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/scripts/spread.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/scripts/unit.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/scripts/usersguide.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/utils/__init__.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/utils/locale_utils.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/utils/os_utils.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/app/utils/output.py -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/share/fonts/descr.txt -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/share/icc/GenericCMYK.icm -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/share/icc/sRGB.icm -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/share/icc/sRGB_Color_Space_Profile.icm -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/share/ps_templates/sk1-proc.ps -> None warning: already exists: /usr/lib/python2.5/site-packages/uniconvertor/share/ps_templates/sketch-proc.ps -> None I did have KDE4.1 from a PPA installed. That is the only thing I could think that may have caused a problem. Everything else should be from the main Ubuntu repos.