change test file

ctr.py

@@ -6,21 +6,27 @@ import pickle
 import time
 from kafka import KafkaProducer
 
+
 def on_send_success():
     print("succeed")
     return 1
 
+
 def on_send_error():
     print("fail")
     return 0
 
+
 if __name__ == "__main__":
     producer = KafkaProducer(bootstrap_servers=['172.16.44.25:9092'],key_serializer=lambda k: pickle.dumps(k),value_serializer=lambda v: pickle.dumps(v))
     print("hajs")
-    producer.send(topic = "test_topic", key = "hello", value = "world")\
-        .add_callback(on_send_success).add_errback(on_send_error)
-    producer.flush()
-    producer.close()
+    future = producer.send(topic= "test_topic", key = "hello", value = "world")
+    try:
+        record_metadata = future.get(timeout=10)
+        print(12)
+    except kafka_errors as e:
+        print(str(e))
+