pygtk 1.2 -> 2 transition, what's the best way ?
Hello,
I'm looking on the best way to do the soon coming python-gtk 1.2 -> 2
transition (for more details about that:
http://lists.debian.org/debian-python/2003/debian-python-200308/msg00031.html).
The transition will be ok for unstable, but what about the next stable ?
A summarize the problem :
* An user is running current stable with some python-gtk
apps. The gtk1.2 python binding is the default, so woody's apps use
"import gtk" to have gtk1.2 (without specify the version).
* After the next release he decides to install python-gtk2 (or an app
that need python-gtk2) by apt-get install python-gtk2 (or app).
=> The default binding will be set to 2.0, and brokes all woody's
packages that use "import gtk" to have gtk 1.2.
So we need to make the install of python-gtk2 upgrading all the packages
depending from python-gtk (without that they will be broken).
I'm seeing two solutions for that :
1- Make current python-gtk(2) conflict with all old packages depending
on python-gtk to force the update.
This solution will :
- be ok for the upgrade
- need no changes for the others packages
but:
- need to list all the packages concerned (and be carefull not forgotten
one)
- will not work with non-official packages
2- Make python-gtk2 conflicts with python-gtk, and introduced a
python-gtk-compat1.2 package to replace it.
Then you just need to build all packages depending on python-gtk (1.2)
against the new package (about 20 packages to rebuild, not a lot of
work).
So a install of python-gtk2 will remove python-gtk, install
python-gtk-compat1.2 and upgrade all needed packages.
I'm thinking the second one is the best solution, but I prefer asking
here for having some advices before starting in that way.
I've made some test of the second solution in a chroot, all seems to be
ok (install of python-gtk2, of a app depending on python-gtk2, upgrade,
...). If nobody is against that, I think I'll upload the new
python-gtk-compat1.2 during the next week.
Cheers,
Sebastien Bacher
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