python-gtk-1.2 problem after upgrae dapper->edgy

[Ace Suares]

apt-get -f upgrade
Reading package lists... Done
Building dependency tree... Done
The following packages have been kept back:
  bzr checkinstall hpijs kde-guidance mapserver-bin python-adns python-clientcookie python-egenix-mxproxy
  python-egenix-mxstack python-egenix-mxtexttools python-egenix-mxtools python-gadfly python-htmlgen python-htmltmpl
  python-imaging python-imaging-sane python-jabber python-kjbuckets python-ldap python-mode python-mysqldb python-opengl
  python-osd python-pam python-pexpect python-pgsql python-pylibacl python-pyopenssl python-pyxattr python-reportlab
  python-simpletal python-soappy python-sqlite python-syck python-xmpp
0 upgraded, 0 newly installed, 0 to remove and 35 not upgraded.
1 not fully installed or removed.
Need to get 0B of archives.
After unpacking 0B of additional disk space will be used.
Do you want to continue [Y/n]?
Setting up python-gtk-1.2 (0.6.12-5) ...
Traceback (most recent call last):
  File "/usr/sbin/update-python-modules", line 281, in ?
    process(basedir,install_modules(py_installed))
  File "/usr/sbin/update-python-modules", line 154, in process
    func(basedir, dir, file)
  File "/usr/sbin/update-python-modules", line 121, in install_modules_func
    raise "Trying to overwrite %s which is already provided by %s"%(os.path.join(dir,file),otherdir)
Trying to overwrite pygtk.py which is already provided by /usr/share/python-support/python-gobject
dpkg: error processing python-gtk-1.2 (--configure):
 subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
 python-gtk-1.2
E: Sub-process /usr/bin/dpkg returned an error code (1)

[Vassilis Pandis (pandisv)]

Thanks for the bug report. This particular bug has already been
reported into our bug tracking system, but please feel free to report
any further bugs which you find.