Made it compatible with python < 3.6

oarstats.py

@@ -32,9 +32,9 @@ class Owner:
             self.gpu[job.queue] += job.resources
 
     def print_info(self):
-        print(f"User {self.name} :: Timeleft: {self.timeleft}, Karma: {self.karma}")
+        print("User {} :: Timeleft: {}, Karma: {}".format(self.name, self.timeleft, self.karma))
         for queue in self.queues.keys():
-            print(f"\t{queue} - Running {self.running[queue]}, Resources: {self.resources[queue]}, GPUs: {self.gpu[queue]}")
+            print("\t{} - Running {}, Resources: {}, GPUs: {}".format(queue, self.running[queue], self.resources[queue], self.gpu[queue]))
 
 
 class Job: