Traceback (most recent call last):
  File "/usr/bin/software-properties-gtk", line 103, in <module>
    app = SoftwarePropertiesGtk(datadir=options.data_dir, options=options, file=file)
  File "/usr/lib/python3/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py", line 192, in __init__
    self.open_file(file)
  File "/usr/lib/python3/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py", line 581, in open_file
    file)
  File "/usr/lib/python3/dist-packages/softwareproperties/gtk/DialogAddSourcesList.py", line 20, in __init__
    print(file)
IOError: [Errno 5] Ulazno/izlazna greška