The 'python-dbus' package (called 'dbus-python' upsteam) uses the 'gnu-build-system', and like most other python libraries, there will be two variants: 'python-dbus' and 'python2-dbus'. Unfortunately, 'package-with-python2' only works on packages that use 'python-build-system'. This is a problem.
It wouldn't be so bad to use 'inherit' to create 'python2-dbus' from 'python-dbus', but the more serious problem is that unless we generalize 'package-with-python2', it won't work properly on any package that uses 'python-dbus' as an input. On the other hand, I realize that 'package-with-explicit-python' intentionally avoids traversing into packages unless they use 'python-build-system', and that this is important for efficiency. Any thoughts on how best to solve this? Mark