Comment 3 for bug 365534

9.04, same error:

Traceback (most recent call last):
  File "/usr/bin/idle-python3.0", line 5, in <module>
    main()
  File "/usr/lib/python3.0/idlelib/PyShell.py", line 1407, in main
    root.mainloop()
  File "/usr/lib/python3.0/tkinter/__init__.py", line 1012, in mainloop
    self.tk.mainloop(n)
UnicodeDecodeError: 'utf8' codec can't decode bytes in position 0-1: illegal encoding