Xen users - Sep 2010 - xm new yields Import error: No module named xmlproc

I''m using a source-compiled Xen-4.0.2-rc1-pre (changeset: Fri Sep
17 17:06:57 2010 +0100 21350:6e0ffcd2d9e0) on a brand new Debian Testing
(Squeeze/sid) install.  The first problem that I ran accross was just
getting xend to start.  I was getting a python error saying that it
couldn''t import SrvDaemon.  I got around that by moving
/usr/lib/python2.6/site-packages/xen to
/usr/local/lib/python2.6/dist-packages/xen, putting a symlink in
/usr/lib/python2.5/site-packages pointing to the "xen" directory in
/usr/local/lib/python2.6/site-packages, and putting a symlink in
/usr/lib/python2.6/site-pacakges doing the same thing.

      After doing that, xend starts, but if I try to do xm new, I get this:


Unexpected error: <type ''exceptions.ImportError''>

Please report to xen-devel@lists.xensource.com
Traceback (most recent call last):
   File "/usr/sbin/xm", line 7, in <module>
     main.main(sys.argv)
   File "/usr/local/lib/python2.6/dist-packages/xen/xm/main.py", line
3620, in main
     _, rc = _run_cmd(cmd, cmd_name, args)
   File "/usr/local/lib/python2.6/dist-packages/xen/xm/main.py", line
3644, in _run_cmd
     return True, cmd(args)
   File "<string>", line 1, in <lambda>
   File "/usr/local/lib/python2.6/dist-packages/xen/xm/main.py", line
1449, in xm_importcommand
     cmd = __import__(command, globals(), locals(), ''xen.xm'')
   File "/usr/local/lib/python2.6/dist-packages/xen/xm/new.py", line
26,
in <module>
     from xen.xm.xenapi_create import *
   File
"/usr/local/lib/python2.6/dist-packages/xen/xm/xenapi_create.py",
line 23, in <module>
     from xml.parsers.xmlproc import xmlproc, xmlval, xmldtd
ImportError: No module named xmlproc


      I found this post from 2007:

http://lists.xensource.com/archives/html/xen-users/2007-07/msg00225.html

... and the follow-up suggests installing the python-xml package, but on
my system, aptitude install python-xml says "no candidate version found
for python-xml".  It seems like it has been removed from the Squeeze
version of Debian, entirely.  I tried installing python2.5 and grabbing
the python-xml .deb file from packages.debian.org (for lenny), but upon
trying to install it, it complains about needing python < 2.6 - even
though both python 2.5 and python 2.6 are installed.  I even tried
forcing it to install despite the dependency problem, and I still get
the import error from xm new.  The error message doesn''t indicate in
what path it is looking for xmlproc, so I''m not sure how to even begin
to nudge it in the right direction.

      Has anyone run across this problem and found a resolution?  I''m
somewhat stumped by it.  I know I can try just re-installing and using
Debian stable instead, then rebuilding everything with python2.5 at the
core, but that seems more like a step back than a step forward, so I
thought I''d check here first.

-- 
Scott Garron


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> From: Scott Garron <xen-users@sce.pridelands.org>
> Subject: [Xen-users] xm new yields Import error: No module named xmlproc
> To: xen-users@lists.xensource.com
> Date: Thursday, September 23, 2010, 2:12 PM
>
>      I''m using a source-compiled
> Xen-4.0.2-rc1-pre (changeset: Fri Sep
> 17 17:06:57 2010 +0100 21350:6e0ffcd2d9e0) on a brand new
> Debian Testing
> (Squeeze/sid) install.  The first problem that I ran
> accross was just
> getting xend to start.  I was getting a python error
> saying that it
> couldn''t import SrvDaemon.  I got around that by
> moving
> /usr/lib/python2.6/site-packages/xen to
> /usr/local/lib/python2.6/dist-packages/xen
During the build use below to make the prefix /usr/local
make install-tools PYTHON_PREFIX_ARG
This worked for me for all builds on Karmic and Lucid Ubuntu.

> if I try to do xm new, I get this:
>
>
> Unexpected error: <type ''exceptions.ImportError''>
>
Its the same on Karmic and Lucid, but there is an unsupported Deb which
works as is on both suites:

python-xml_0.8.4-10.1ubuntu2_amd64.deb

I posted about the above to xen-users back in April 2k10.

-- 
Mark



      

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