Xen devel - May 2009 - [PATCH] [RFC] xend: use popen2 module instead of subprocess for Python 2.3

Hi,

On Python 2.3, xend cannot started:
    File
"usr/lib/python2.3/site-packages/xen/xend/server/BlktapController.py",
line 3, in ?
      import subprocess
  ImportError: No module named subprocess

This patch uses `popen2'' instead of `subprocess'' for Python
2.3.
However, I tested only ''xend start''. 
Is this correct? 
And, is Python 2.3 still supported?

Signed-off-by: KUWAMURA Shin''ya <kuwa@jp.fujitsu.com>
-- 
  KUWAMURA Shin''ya


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KUWAMURA Shin''ya writes ("[Xen-devel] [PATCH] [RFC] xend: use
popen2 module instead of subprocess for Python
2.3"):
> On Python 2.3, xend cannot started:
>     File
"usr/lib/python2.3/site-packages/xen/xend/server/BlktapController.py",
line 3, in ?
>       import subprocess
>   ImportError: No module named subprocess
> 
> This patch uses `popen2'' instead of `subprocess'' for
Python 2.3.
It looks broadly correct to me, although I haven''t tested it.
> However, I tested only ''xend start''. 
Did you test it with a blktap block device ?
> And, is Python 2.3 still supported?
I think we would try to make it continue to work unless this is
particularly difficult for some reason.

Thanks,
Ian.

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Hi,
>>>>> On Fri, 29 May 2009 17:51:44 +0100
>>>>> Ian.Jackson@eu.citrix.com(Ian Jackson)  said:
> 
> KUWAMURA Shin''ya writes ("[Xen-devel] [PATCH] [RFC] xend: use
popen2 module instead of subprocess for Python 2.3"):
> 
> > However, I tested only ''xend start''. 
> Did you test it with a blktap block device ?
I could not test blktap. I got the following error using tap:aio:
    File
"usr/lib/python2.3/site-packages/xen/xend/server/BlktapController.py",
line 124, in createDevice
      (typ, subtyp, params, file) = string.split(uname, '':'',
3)
  ValueError: unpack list of wrong size

Thus, I could not test it.
> > And, is Python 2.3 still supported?
> 
> I think we would try to make it continue to work unless this is
> particularly difficult for some reason.
OK. I use Python 2.3 for a while.

Best regards,
-- 
  KUWAMURA Shin''ya

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