Yes, either raise the log level by calling the command
set_log_level(level)
where level is either WARNING or ERROR. You can experiment with different levels to get different amounts of diagnostic messages:
CRITICAL = 50, // errors that may lead to data corruption and suchlike
ERROR = 40, // things that go boom
WARNING = 30, // things that may go boom later
INFO = 20, // information of general interest
PROGRESS = 16, // what's happening (broadly)
TRACE = 13, // what's happening (in detail)
DBG = 10 // sundry
To turn of logging completely, use
set_log_active(False)