y si lo lanzas desde consola que te dice?

me da unos errores sobre phyton

"Traceback (most recent call last):
File "/usr/bin/alacarte", line 22, in <module>
from Alacarte.MainWindow import MainWindow
File "/usr/lib/python2.7/site-packages/Alacarte/MainWindow.py", line 19, in <module>
import gtk, gmenu, gobject, gio
File "/usr/lib64/python2.7/site-packages/gtk-2.0/gtk/__init__.py", line 40, in <module>
from gtk import _gtk
ImportError: could not import gobject (could not find _PyGObject_API object)"


tambien reinstale python y nada