Fix pylint

alignak/objects/schedulingitem.py

@@ -2696,7 +2696,6 @@ def acknowledge_problem(self, notification_period, hosts, services, sticky, noti
         :return: None | alignak.comment.Comment
         """
         comm = None
-        print("Ack: %s / %s / %s" % (self, self.is_problem, self.in_scheduled_downtime))
         logger.debug("Acknowledge requested for %s %s.", self.my_type, self.get_name())
 
         if self.state != self.ok_up:

alignak/scheduler.py

@@ -710,7 +710,7 @@ def scatter_master_notifications(self):
                             self.find_item_by_id(getattr(item, "host", None))
                         )
                         for notif in childnotifs:
-                            logger.debug(" - child notification: %s" % notif)
+                            logger.debug(" - child notification: %s", notif)
                             notif.status = 'scheduled'
                             self.add(notif)  # this will send a brok
 
@@ -1739,7 +1739,7 @@ def get_new_actions(self):
         # ask for service and hosts their next check
         for elt in self.iter_hosts_and_services():
             for act in elt.actions:
-                logger.debug("Got a new action for %s: %s" % (elt, act))
+                logger.debug("Got a new action for %s: %s", elt, act)
                 self.add(act)
             # We take all, we can clear it
             elt.actions = []