Bug#936248: bubbros: Python2 removal in sid/bullseye

[Juhani Numminen]

Control: severity -1 serious

I have raised the severity as I'm going to ask the removal of this package
in a couple of weeks.

The package is not completely dead upstream but it seems that Python3 is not
supported. Source code has been moved to Bitbucket, with latest changes
committed in 2016.
https://bitbucket.org/arigo/bub-n-bros/commits/all

Regards,
Juhani Numminen