Comment 13 for bug 337759

@Bernard Sauterel Bekauri :
That didn't help, since it is used even without the export I think.

@All:
I found out something interesting:

The directory
  /usr/lib/python2.6/dist-packages/oldxml/_xmlplus/utils
on my box contains the missing boolean.so, so i created a symlink in
  /usr/lib/python2.6/dist-packages/_xmlplus/utils

This resulted in:
sudo su - postgres -c "/usr/bin/openerp-server --init=all --config=/etc/openerp-server.conf --stop-after-init"
[2009-03-31 11:28:00,589] INFO:server:version - 5.0.0
[2009-03-31 11:28:00,597] INFO:server:addons_path - /usr/lib/openerp-server/addons
[2009-03-31 11:28:00,598] INFO:server:database hostname - localhost
[2009-03-31 11:28:00,599] INFO:server:database port - 5432
[2009-03-31 11:28:00,600] INFO:server:database user - postgres
[2009-03-31 11:28:00,601] INFO:objects:initialising distributed objects services
/usr/lib/openerp-server/addons/__init__.py:26: DeprecationWarning: the sets module is deprecated
  from sets import Set

I haven't checked any further, but it seems at least to solve the python-xml issue.
I have absolutely no idea why there are 2 nearly identical copys of "oldxml" on this box, I'll check that out later. (Purging openerp-server and all it's dependencies including python-xml

I'll update the python-xml bug with further progress:
https://bugs.launchpad.net/ubuntu/+source/python-xml/+bug/343242/