python-gmenu's post-install script returns exit status 1

Binary package hint: gnome-menus

Hi!

While I've been testing an Ubuntu Maverick ISO, I've encountered the following issue:

ubuntu@ubuntu:~$ sudo apt-get install cheese
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
  cheese-common
The following NEW packages will be installed:
  cheese cheese-common
0 upgraded, 2 newly installed, 0 to remove and 21 not upgraded.
Need to get 2,402kB of archives.
After this operation, 3,564kB of additional disk space will be used.
Do you want to continue [Y/n]?
Get:1 http://archive.ubuntu.com/ubuntu/ maverick/main cheese-common all 2.31.90-0ubuntu2 [2,332kB]
Get:2 http://archive.ubuntu.com/ubuntu/ maverick/main cheese amd64 2.31.90-0ubuntu2 [69.8kB]
Fetched 2,402kB in 37s (64.4kB/s)
Selecting previously deselected package cheese-common.
(Reading database ... 127218 files and directories currently installed.)
Unpacking cheese-common (from .../cheese-common_2.31.90-0ubuntu2_all.deb) ...
Selecting previously deselected package cheese.
Unpacking cheese (from .../cheese_2.31.90-0ubuntu2_amd64.deb) ...
Processing triggers for hicolor-icon-theme ...
Processing triggers for gconf2 ...
Processing triggers for man-db ...
Processing triggers for desktop-file-utils ...
Processing triggers for python-gmenu ...
Rebuilding /usr/share/applications/desktop.en_US.utf8.cache...
Traceback (most recent call last):
  File "/usr/sbin/update-python-modules", line 17, in <module>
    from pysupport import py_supported,py_installed,py_oldversions
ImportError: cannot import name py_supported
dpkg: error processing python-gmenu (--unpack):
 subprocess installed post-installation script returned error exit status 1
E: Sub-process /usr/bin/dpkg returned an error code (1)

ubuntu@ubuntu:~$ sudo tail /var/log/apt/history.log

Start-Date: 2010-09-06 14:00:29
Commandline: apt-get install cheese
Error: Sub-process /usr/bin/dpkg returned an error code (1)
End-Date: 2010-09-06 14:00:30

ubuntu@ubuntu:~$ sudo tail /var/log/apt/term.log
Rebuilding /usr/share/applications/desktop.en_US.utf8.cache...
Traceback (most recent call last):
  File "/usr/sbin/update-python-modules", line 17, in <module>
    from pysupport import py_supported,py_installed,py_oldversions
ImportError: cannot import name py_supported
dpkg: error processing python-gmenu (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 python-gmenu
Log ended: 2010-09-06 14:03:00