我正在编写一个脚本来刷新我在AWS管理的Kafka集群上的主题。每当我运行脚本时，我需要清除现有数据，我通过删除和再次创建相同的主题来完成。我希望脚本在我重复运行时打印出成功删除和成功创建的结果。但删除/创建每隔一次运行都会失败，这让我感到困惑。
下面是我的脚本：

# manage_topics.py
import sys
from confluent_kafka.admin import AdminClient, NewTopic
from confluent_kafka import KafkaError, KafkaException
if __name__ == '__main__':
    kafka_cfg = '.....' # omitted  
    admin_client = AdminClient(kafka_cfg)

    deletion_ret = admin_client.delete_topics(['my-test-topic1'])
    for topic, delete_fut in deletion_ret.items():
        try:
            status = delete_fut.result()
            print(f'{topic} deletion is successful. status={status}')
        except KafkaException as e:
            print(f'could not delete topic: {topic}, error: {str(e)}')
            if e.args[0].code() != KafkaError.UNKNOWN_TOPIC_OR_PART:
                print('exiting...')
                sys.exit(1)
            else:
                print('ignoring UNKNOWN_TOPIC_OR_PART error')

    # I have two brokers for the Kafka instance I was given
    creation_ret = admin_client.create_topics([NewTopic('my-test-topic1', 5, 2)])
    for topic, create_fut in creation_ret.items():
        try:
            status = create_fut.result()
            print(f'{topic} creation is successful. status={status}')
        except KafkaException as e:
            print(f'could not create topic: {topic}, error: {str(e)}')

这是它生成的日志。我在每次运行之间等待了多长时间并不重要。对我来说，似乎当一个成功的删除之后是一个创建时，删除需要时间，所以下面的创建会失败。当我再次运行它时，前一个删除会完成，然后当前的删除会失败，创建会成功。
如果有人能帮助我理解和改进这个脚本，我将非常感激。

$ python manage_topics.py
could not delete topic: my-test-topic1, error: KafkaError{code=UNKNOWN_TOPIC_OR_PART,val=3,str="Broker: Unknown topic or partition"}
ignoring UNKNOWN_TOPIC_OR_PART error
my-test-topic1 creation is successful. status=None
$
$
$ python manage_topics.py
my-test-topic1 deletion is successful. status=None
could not create topic: my-test-topic1, error: KafkaError{code=TOPIC_ALREADY_EXISTS,val=36,str="Topic 'my-test-topic1' already exists."}
$
$
$ python manage_topics.py
could not delete topic: my-test-topic1, error: KafkaError{code=UNKNOWN_TOPIC_OR_PART,val=3,str="Broker: Unknown topic or partition"}
ignoring UNKNOWN_TOPIC_OR_PART error
my-test-topic1 creation is successful. status=None
$
$
$ python manage_topics.py
my-test-topic1 deletion is successful. status=None
could not create topic: my-test-topic1, error: KafkaError{code=TOPIC_ALREADY_EXISTS,val=36,str="Topic 'my-test-topic1' already exists."}
$
$