"No module named pygtk" in the current daily dapper installer

[Miguel González Viñé]

I've installed today dapper from the current iso (13-Jan-2006) and I
can't run "alacarte" or "update-manager" because I get the "no module
named pygtk" error:


miguel at ubuntu:~$ alacarte
Traceback (most recent call last):
  File "/usr/bin/alacarte", line 20, in ?
    from Alacarte.GnomeFront import GnomeFront
  File "/usr/lib/python2.4/site-packages/Alacarte/GnomeFront.py", line 20, in ?
    import pygtk
ImportError: No module named pygtk


I've check in synaptic the packages installed by the CD and
python-gtk2 and python2.4-gtk2 are installed... and I don't know how
to solve this problem...
Anyone knows how?
I think it would be nice to fix this before Flight3.

Thank you so much.