openstack team mailing list archive

[Robert Kukura <rkukura@xxxxxxxxxx>]

[I'm moving this thread to the openstack list because it potentially
impacts openstack-common.]

On 05/07/2012 11:53 PM, Maru Newby wrote:
> Hi,
> 
> Python 2.4 compatibility is required, but only for agent code.  Agent
> code needs to be deployable on Xen dom0, which uses CentoOS 5.5 and only
> supports 2.4 out of the box.

Maru,

I'm very concerned about the potential of this XenServer/XCP requirement
to interfere with making the various Quantum agents first-class
OpenStack services by utilizing current and future openstack-common
facilities for configuration, logging, DB, RPC, etc.. Are there any
other possible ways forward here? How is the nova compute service
currently handled for XenServer? Could a fully supported version of
python be parallel-installed on dom0? Could the actual quantum agent run
somewhere else and remotely execute commands on dom0? Or does the python
2.4 compatibility requirement need to be applied to openstack-common?

Thanks,

-Bob

> 
> Both quantum and nova have agent code that needs to be deployed to dom0,
> but up until now both projects have relied on savvy reviewers and bug
> reports to ensure compatibility.  I'm working on it, though.  I'll
> be adding a tox build to quantum that will run agent tests - and agent
> tests only - under 2.4, and then openstack-ci can add a jenkins job to
> run that build on CentOS and gate merges.  
> 
> The relevant bug: https://bugs.launchpad.net/quantum/+bug/995278
> 
> Thanks,
> 
> 
> Maru
> 
> 
> On 2012-05-07, at 6:54 PM, Yong Sheng Gong wrote:
> 
>> Hi,
>> I see some ones are trying to support python2.4. But our tox.ini under
>> quantum is only supporting test py26 and py27.
>> So my question is if we are trying to support py24. In addition I
>> remember that we will support py30.
>>
>> As far as I know, py2.4 does not support many new syntaxes introduced
>> by py2.5+. Other projects such as nova, horizon are also adopting some
>> of these new syntaxes. Moreover some third party components such as
>> Django 1.4 required by horizon are only tested under py2.6 and py2.7.
>>
>> So if py2.4 is out of our scope, we should stop that trying. If we
>> need py2.4, we have to make all of us know it and keep our code 2.4
>> compatible.
>>
>> Thanks
>>
>> Yong Sheng Gong
>>
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> 
>