Problem with import bob.core
Looks like
import bob.core
logger = bob.core.log.setup("bob.rppg.base")
bob.core.log.set_verbosity_level(logger, args['--verbose'])
does not work, whereas
import bob.core
logger = bob.core.log.setup("bob.rppg.base")
from bob.core.log import set_verbosity_level
set_verbosity_level(logger, args['--verbose'])
does work ...