Bug#476678: Updating python-uno fails at first

[Rene Engelhard <rene@debian.org>]

clone 476678 -1
reassign -1 python-central
thanks

Hi,

Goswin von Brederlow wrote:
> when updating python-uno I get an error on the first try:
> 
> Unpacking replacement openoffice.org ...
> Preparing to replace python-uno 1:2.4.0-3 (using .../python-uno_1%3a2.4.0-4_amd64.deb) ...
> INFO: using old version '/usr/bin/python2.3'
> Traceback (most recent call last):
>   File "/usr/bin/pycentral", line 1833, in ?
>     main()
>   File "/usr/bin/pycentral", line 1827, in main
>     rv = action.run(global_options)
>   File "/usr/bin/pycentral", line 1287, in run
>     requested = pyversions.requested_versions_for_runtime(version_field, version_only=True)
>   File "/usr/share/pycentral-data/pyversions.py", line 213, in requested_versions_for_runtime
>     raise ValueError, 'empty set of versions'
> ValueError: empty set of versions
> dpkg: error processing /var/cache/apt/archives/python-uno_1%3a2.4.0-4_amd64.deb (--unpack):
>  subprocess pre-installation script returned error exit status 1

python-uno only supports the default python.

This sounds for me like python-central wanting do stuff when neither the
new python2.5 nor the new python is not unpacked on the system yet:

> Selecting previously deselected package python2.5-minimal.
> Unpacking python2.5-minimal (from .../python2.5-minimal_2.5.2-3_amd64.deb) ...
> Selecting previously deselected package python2.5.
> Unpacking python2.5 (from .../python2.5_2.5.2-3_amd64.deb) ...
> Preparing to replace python 2.4.4-2 (using .../python_2.5.2-1_all.deb) ...
> Unpacking replacement python ...
> Preparing to replace python-minimal 2.4.4-2 (using .../python-minimal_2.5.2-1_all.deb) ...
> Unpacking replacement python-minimal ...

as done here ...

> Retrying it works:

[...]

Because the new python/python2.5 is now installed...

> I guess there is some depends or pre-depends missing.

preeinst, So Pre-Depends:.
But I am not exactly convinced python-uno should have the Pre-Depends:.

dh_pycentral adds the preinst/prerm/postinst snippets.

I think the fix should be in either python-central or an other python
package and we shouldn't add Pre-Depends: on python packagees just
supporting the default verssion...

Cloning to python-central (python-uno'd need a rebuild when
dh_pycentral gets changed)

Regards,

Rene