Control: reassign -1 apt [Something for David to look at :)]
On Tue, Dec 09, 2014 at 04:59:29PM +1000, Russell Stuart wrote: > Package: python-apt Version: 0.9.3.11 Severity: normal > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA512 > > Dear Maintainer, > > apt_pkg.Dependency objects returned by apt_pkg.Version.depends_list > select a apt_pkg.Dependency.target_pkg that has the same architecture > as the apt_pkg.Version that generated it (Architecture: all packages > aside). Usually this is the right thing do to. > > The one time is isn't is when target_pkg is "multi-arch: Foreign". > In that case you always want the native package, if it is available. > > Eg consider a system that wants both libgcc1:amd64 and libgcc1:i386 > installed. libgcc1 PreDepends on multiarch-support. > multiarch-support:amd64 conflicts with multiarch-support:i386, so > you can't have both installed. But currently if you just use the > suggested target_pkg, you will attempt to install both. apt-get and > aptitude resolve this by only installing the native version, and it > would be nice if apk_pkg did the same. > > Example: > > import apt_pkg > apt_pkg.init() > cache = apt_pkg.Cache() > dep_cache = apt_pkg.DepCache(cache) > libgcc1_i386 = cache["libgcc1:i386"] > version = dep_cache.get_candidate_ver(libgcc1_i386) > depends = version.depends_list["PreDepends"][0][0] > target_pkg = depends.target_pkg > print target_pkg.name, target_pkg.architecture > print depends.all_targets()[0].multi_arch == > apt_pkg.Version.MULTI_ARCH_FOREIGN > print cache["multiarch-support"].architecture, cache["dpkg"].architecture > > Prints: > multiarch-support i386 > True > amd64 amd64 > > A better result would be: > multiarch-support amd64 > True > amd64 amd64 > Reassigning to APT, python-apt just calls the TargetPkg() method there. -- Julian Andres Klode - Debian Developer, Ubuntu Member See http://wiki.debian.org/JulianAndresKlode and http://jak-linux.org/. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
