On 06/16/2011 05:29 PM, Martin Pitt wrote: > Hey Mike, > > Michael Terry [2011-06-16 11:17 -0400]: >> Hello! I was just considering how a dh_python2 transition for the >> various ubuntuone python modules would work. They all install into >> the ubuntuone module, so would need to be updated at the same time. >> >> Is there a recommended way to avoid the problem of users partially >> upgrading (either from builds finishing separately or specifically >> apt-get installing only some of the packages) and having mixed tool >> usage? > > We (as in pkg-gnome) indeed had the very same problem for pygobject, > gnome-python, and various other packages, which install/share a > "gtk-2.0" sub-namespace. What I did was: > > * debian/rules: Install a library search path for a pysupport compatible > gtk-2.0 directory, to avoid instantly breaking all reverse dependencies. > This needs to stay until they get converted to dh_python2. > > in debian/rules: > > # until all reverse dependencies of pygobject have been converted to > # dh_python2, install a library search path which is backwards > # compatible to pysupport (see Debian#614764) > echo "/usr/lib/pymodules/python$*/gtk-2.0/" > > $(CURDIR)/debian/python-gobject-dev/$(call py_libdir_sh, > $*)/gtk-2.0-pysupport-compat.pth > > With this search path, a gtk-2.0 submodule can be in either > /usr/lib/pymodules/python2.7/gtk-2.0 (pysupport) or > /usr/lib/python2.7/dist-packages/gtk-2.0 (dh_python2/upstream python). > > It's a hack, but we considered it good enough, and much better than > having to transition some 10 packages in lockstep.
I would be surprised if it does work. if a namespace package is involved, you'll need the __init__.py in the two places too. so please do not consider this hack for any further "transition", but use the Breaks approach, and/or prepare a series of uploads in a PPA. Matthias -- ubuntu-devel mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel
