Comment 8 for bug 603852

Same here, out of the blue with maverick, otherwise always kept up to date:

$ sudo apt-get -u dist-upgrade ....

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 11, in <module>
    import sys,os,shutil
ImportError: No module named shutil
dpkg: error processing python-gmenu (--unpack):
 subprocess installed post-installation script returned error exit status 1
....
Errors were encountered while processing:
 python-gmenu
E: Sub-process /usr/bin/dpkg returned an error code (1)