Python "ImportError: could not import pango"

[archimed@ /usr/home/archimed]$ ccsm
/usr/local/lib/python2.5/site-packages/gtk-2.0/gtk/__init__.py:48: RuntimeWarning: tp_compare didn't return -1 or -2 for exception
  from gtk import _gtk
ImportError: could not import pango
ImportError: could not import pango
Info: No sexy-python package found, don't worry it's optional.
Traceback (most recent call last):
  File "/usr/local/bin/ccsm", line 39, in <module>
    import ccm
  File "/usr/local/lib/python2.5/site-packages/ccm/__init__.py", line 1, in <module>
    from ccm.Conflicts import *
  File "/usr/local/lib/python2.5/site-packages/ccm/Conflicts.py", line 25, in <module>
    from ccm.Constants import *
  File "/usr/local/lib/python2.5/site-packages/ccm/Constants.py", line 36, in <module>
    CurrentScreenNum = gtk.gdk.display_get_default().get_default_screen().get_number()
AttributeError: 'gtk.gdk.DisplayX11' object has no attribute 'get_default_screen'

[archimed@ /usr/home/archimed]$ cat /usr/local/bin/ccsm
#!/usr/local/bin/python
# -*- coding: UTF-8 -*-

# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
#
# Authors: Quinn Storm (quinn@beryl-project.org)
#          Patrick Niklaus (marex@opencompositing.org)
# Copyright (C) 2007 Quinn Storm

import pygtk
pygtk.require('2.0')
import gtk

try:
        import sexy
        has_sexy = True
except ImportError:
        print "Info: No sexy-python package found, don't worry it's optional."
        has_sexy = False

if gtk.pygtk_version < (2,10,0):
    print "PyGtk 2.10.0 or later required"
    raise SystemExit

import compizconfig
ccs = compizconfig
import ccm

screens = ccm.getScreens()
context = ccs.Context(screens)
mainWin = ccm.MainWin(context)
mainWin.show_all()

gtk.main()