2013-11-12 ibus-pinyin doesn't work in KUbuntu 13.10

ibus and ibus-pinyin doesn't work in KUbuntu 13.10. It looks like this

$ ibus-setup
ERROR:root:Could not find any typelib for Gtk
Traceback (most recent call last):
  File "/usr/share/ibus/setup/main.py", line 29, in <module>
    from gi.repository import Gtk
ImportError: cannot import name Gtk

The problem is a dependency package is missing. This problem can be solved by this command: sudo apt-get install gir1.2-gtk-3.0.