Package: debtree Version: 1.0.10 On debian jessie, I execute:
$ debtree python-gtk2 --arch=armel --no-recommends --no-alternatives --no-provides which yields: .... "python-numpy" -> "libblas3" [color=blue]; "libblas3" -> "libquadmath0" [color=blue,label="(>= 4.6)"]; But from the following link you can see there is no armel arch available for libquadmath0: https://packages.debian.org/jessie/libquadmath0 Thus, I conclude that debtree is incorrectly reporting. Additionally, I'm not certain where feature requests go, but support for JSON output would certainly be helpful/preferable versus going straight to graphwiz, particularly considering that there is not otherwise a clear recipe for dependency traversal via traditional APIs.