Comment 4 for bug 81289

bughelper -p <packagename> --format=html > myfile.html already gives a good file that can be parsed. It doesn't provide all the information known about a bug, but bug helper doesn't look at all of it at this stage. We could of course add some more content to the html output version.

What you may want is to use a bug number and go in a grab the entrire XML version of the bug from LP (when that feature becomes available). I doubt that implementing something short of that, yet more complete than the html dump is worth the effort.