Traceback (most recent call last):
  File "/usr/bin/software-properties-gtk", line 105, in <module>
    app = SoftwarePropertiesGtk(datadir=options.data_dir, options=options, file=file)
  File "/usr/lib/python2.7/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py", line 157, in __init__
    self.init_distro()
  File "/usr/lib/python2.7/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py", line 269, in init_distro
    self.label_dist_name.set_label(_("%s Software") % self.distro.id)
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe8 in position 3: ordinal not in range(128)