Python 3 support
diff --git a/data/import_eventserver.py b/data/import_eventserver.py
index 5c49837..e8010ca 100644
--- a/data/import_eventserver.py
+++ b/data/import_eventserver.py
@@ -11,13 +11,13 @@
 def import_events(client):
   random.seed(SEED)
   count = 0
-  print client.get_status()
-  print "Importing data..."
+  print(client.get_status())
+  print("Importing data...")
 
   # generate 10 users, with user ids u1,u2,....,u10
   user_ids = ["u%s" % i for i in range(1, 11)]
   for user_id in user_ids:
-    print "Set user", user_id
+    print("Set user", user_id)
     client.create_event(
       event="$set",
       entity_type="user",
@@ -30,7 +30,7 @@
   categories = ["c%s" % i for i in range(1, 7)]
   item_ids = ["i%s" % i for i in range(1, 51)]
   for item_id in item_ids:
-    print "Set item", item_id
+    print("Set item", item_id)
     client.create_event(
       event="$set",
       entity_type="item",
@@ -44,7 +44,7 @@
   # each user randomly viewed 10 items
   for user_id in user_ids:
     for viewed_item in random.sample(item_ids, 10):
-      print "User", user_id ,"views item", viewed_item
+      print("User", user_id ,"views item", viewed_item)
       client.create_event(
         event="view",
         entity_type="user",
@@ -55,7 +55,7 @@
       count += 1
       # randomly buy some of the viewed items
       if random.choice([True, False]):
-        print "User", user_id ,"buys item", viewed_item
+        print("User", user_id ,"buys item", viewed_item)
         client.create_event(
           event="buy",
           entity_type="user",
@@ -65,7 +65,7 @@
         )
         count += 1
 
-  print "%s events are imported." % count
+  print("%s events are imported." % count)
 
 if __name__ == '__main__':
   parser = argparse.ArgumentParser(
@@ -74,7 +74,7 @@
   parser.add_argument('--url', default="http://localhost:7070")
 
   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 b0eb651..df7f624 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": "u1", "num": 4})
+print(engine_client.send_query({"user": "u1", "num": 4}))