Hello!
 I have new xen-3.3.0 installed and working on latest Ubuntu Hardy, with Linux 2.6.18-xen from 
xen.org.
 When I run "xm new" I got this error:
root@hyper02:~# xm li
Name                                        ID   Mem VCPUs      State   Time(s)
Domain-0                                     0   512     1     r-----   1869.9
vsrv65                                       4  1024     1     r-----    540.6
root@hyper02:~# 
xm new vsrv65Unexpected error: <type 'exceptions.ImportError'>
Please report to 
xen-devel@xxxxxxxxxxxxxxxxxxx
Traceback (most recent call last):
  File "/usr/sbin/xm", line 10, in <module>
    main.main(sys.argv)
  File "//usr/lib64/python/xen/xm/main.py", line 2883, in main
    _, rc = _run_cmd(cmd, cmd_name, args)
  File "//usr/lib64/python/xen/xm/main.py", line 2907, in _run_cmd
    return True, cmd(args)
  File "<string>", line 1, in <lambda>
  File "//usr/lib64/python/xen/xm/main.py", line 1374, in xm_importcommand
    cmd = __import__(command, globals(), locals(), 'xen.xm')
  File "//usr/lib64/python/xen/xm/new.py", line 26, in <module>
    from xen.xm.xenapi_create import *
  File "//usr/lib64/python/xen/xm/xenapi_create.py", line 23, in <module>
    from xml.parsers.xmlproc import xmlproc, xmlval, xmldtd
ImportError: No module named xmlproc
 But I have python-xml installed! Look:
root@hyper02:~# 
dpkg -l python-xml | grep xmlii  python-xml                             0.8.4-10ubuntu2                     XML tools for Python
root@hyper02:~# 
uname -aLinux hyper02 
2.6.18.8-xen #1 SMP Fri Sep 12 15:39:22 BRT 2008 x86_64 GNU/Linux
root@hyper02:~# 
xm infohost                   : hyper02
release                : 2.6.18.8-xen
version                : #1 SMP Fri Sep 12 15:39:22 BRT 2008
machine                : x86_64
nr_cpus                : 2
nr_nodes               : 1
cores_per_socket       : 2
threads_per_core       : 1
cpu_mhz                : 3391
hw_caps                : bfebfbff:20100800:00000000:00000180:0000e49d:00000000:00000001:00000000
virt_caps              : 
total_memory           : 8190
free_memory            : 6526
node_to_cpu            : node0:0-1
node_to_memory         : node0:6526
xen_major              : 3
xen_minor              : 3
xen_extra              : .0
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p 
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : unavailable
cc_compiler            : gcc version 4.2.4 (Ubuntu 4.2.4-1ubuntu1)
cc_compile_by          : administrativo
cc_compile_domain      : 
office.worldweb.com.brcc_compile_date        : Fri Sep 12 14:55:49 BRT 2008
xend_config_format     : 4
---
root@hyper02:~# dpkg -L python-xml (Attached: python-xml.files.txt)
---
 Can someone help me?!
Thanks,
Thiago