Worker ready message now using logging.info instead of print. Closes #3462

celery/apps/worker.py

@@ -152,7 +152,7 @@ class Worker(WorkController):
 
     def on_consumer_ready(self, consumer):
         signals.worker_ready.send(sender=consumer)
-        print('{0} ready.'.format(safe_str(self.hostname),))
+        logger.info('%s ready.', safe_str(self.hostname))
 
     def setup_logging(self, colorize=None):
         if colorize is None and self.no_color is not None: