Package: ftp.debian.org X-Debbugs-Cc: bu...@packages.debian.org buxon was orphaned in 2013 and has had only one trivial upload since. It was removed from Testing in January because it depends on the deprecated pygtk.
Therefore, please remove buxon from Debian. https://bugs.debian.org/733528 (orphan bug) Thanks, Jeremy Bicha
