Comment 13 for bug 768791

I still get this on Ubuntu 16.04 LTS

/usr/lib/python3/dist-packages/usbcreator/frontends/gtk/frontend.py:23: PyGIWarning: Gdk was imported without specifying a version first. Use gi.require_version('Gdk', '3.0') before import to ensure that the right version gets loaded.
  from gi.repository import Gdk
/usr/lib/python3/dist-packages/usbcreator/frontends/gtk/frontend.py:25: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '3.0') before import to ensure that the right version gets loaded.
  from gi.repository import Gtk
/usr/lib/python3/dist-packages/usbcreator/frontends/gtk/unitysupport.py:27: PyGIWarning: Unity was imported without specifying a version first. Use gi.require_version('Unity', '7.0') before import to ensure that the right version gets loaded.
  from gi.repository import Unity
/usr/lib/python3/dist-packages/usbcreator/backends/udisks/backend.py:4: PyGIWarning: UDisks was imported without specifying a version first. Use gi.require_version('UDisks', '2.0') before import to ensure that the right version gets loaded.
  from gi.repository import Gio, GLib, UDisks
isoinfo: Unable to find Joliet SVD
isoinfo: Unable to find Joliet SVD
isoinfo: Unable to find Joliet SVD
isoinfo: Unable to find Joliet SVD
isoinfo: Unable to find Joliet SVD
isoinfo: Unable to find Joliet SVD
isoinfo: Unable to find Joliet SVD
isoinfo: Unable to find Joliet SVD