When using the xen command line interface, either with create or list, I 
got this error :

gedeon# xm list
/usr/pkg/lib/python2.4/xmllib.py:9: DeprecationWarning: The xmllib 
module is obsolete.  Use xml.sax instead.
  warnings.warn("The xmllib module is obsolete.  Use xml.sax instead.", 
DeprecationWarning)
Name                                      ID Mem(MiB) VCPUs State   Time(s)
Domain-0                                   0      250     1 r-----    564.5
web                                        3      128     1 --p---      0.0

Do you have a solution ? My python version is python24-2.4.3nb3 
(installed with the xen package).