diff --git a/data/import_eventserver.py b/data/import_eventserver.py
index 0a1e109..2c92335 100644
--- a/data/import_eventserver.py
+++ b/data/import_eventserver.py
@@ -13,7 +13,7 @@
   f = open(file, 'r')
   random.seed(SEED)
   count = 0
-  print "Importing data..."
+  print("Importing data...")
   for line in f:
     data = line.rstrip('\r\n').split(RATE_ACTIONS_DELIMITER)
     # For demonstration purpose, randomly mix in some buy events
@@ -36,7 +36,7 @@
       )
     count += 1
   f.close()
-  print "%s events are imported." % count
+  print("%s events are imported." % count)
 
 if __name__ == '__main__':
   parser = argparse.ArgumentParser(
@@ -46,7 +46,7 @@
   parser.add_argument('--file', default="./data/sample_movielens_data.txt")
 
   args = parser.parse_args()
-  print args
+  print(args)
 
   client = predictionio.EventClient(
     access_key=args.access_key,
diff --git a/data/send_query.py b/data/send_query.py
index 7eaf53e..3dafd6d 100644
--- a/data/send_query.py
+++ b/data/send_query.py
@@ -4,4 +4,4 @@
 
 import predictionio
 engine_client = predictionio.EngineClient(url="http://localhost:8000")
-print engine_client.send_query({"user": "1", "num": 4})
+print(engine_client.send_query({"user": "1", "num": 4}))