Package: ftp.debian.org Severity: normal Package written in python, and depends on packages that have been removed from unstable. Thus binaries in sid cannot build from source, nor be installable anymore.
Please remove ifupdown2 from unstable. See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=967953 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=927134 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=936724
