[et-mgmt-tools] koan specfile suggestion: require python >= 2.4

[Michael DeHaan]

Adam Monsen wrote:
> On 1/23/07, *Michael DeHaan* <mdehaan at redhat.com 
> <mailto:mdehaan at redhat.com>> wrote:
> [...]
>
>     > That report is about libvirt-python not koan. There's no need to
>     add a
>     > dependancy to the koan specfile to enforce a requirement of
>     libvirt for
>     > python 2.3 - simply adding the Requires: line to the libvirt-python
>     > specfile is sufficient.
>     >
>     > Regards.
>     > Dan.
>     >
>     Speaking of koan (if we are speaking about koan?) it doesn't even need
>     that. Current behavior (again, to support koan on RHEL3 and places
>     where
>     Xen isn't installed) is to only try to import virt modules when
>     running
>     the virt commands, s.t. koan still works on non Xen aware
>     platforms. If
>     it's trying to import virt stuff when doing "--replace-self", we have
>     issues though -- shouldn't be doing that.
>
>
>
> Here's the error message I saw, in case it helps. If not, please 
> disregard. Sorry, I should've had this in the original post.
>
... snip ...
>   File "/usr/lib/python2.3/site-packages/koan/virtcreate.py", line 
> 173, in start_paravirt_install
>     import libvirt
>   File "/usr/lib/python2.3/site-packages/libvirt.py", line 7, in ?
>     import libvirtmod
> ImportError: /usr/lib/python2.3/site-packages/libvirtmod.so: undefined 
> symbol: PyEval_ThreadsInitialized
>
>
... snip ...

>
> -- 
> Adam Monsen

I'm guessing what happened is that libvirt wants python 2.4 now and 
didn't earlier (Dan?).   

Koan does a lazy load of libvirt (only when virt commands are 
requested), so on 2.3 systems, you are free to use --replace-self but 
virt won't work anymore.    Basically I don't want to require 2.4 in the 
specfile as that breaks koan for a lot of legitimate non-virt uses.   It 
does sound like koan needs to print more helpful error messages about 
virt not working when you have only python 2.3 though.

Anyhow, the spec file won't be edited, but the error messages can be 
worked on.   "koan --replace-self" is used on a lot of Python 2.3 
systems and that needs to continue to work everywhere, even on RHEL3 :)

Hopefully that makes sense.

--Michael