Amazon SNS - Publish message to a topic using python boto3

sns.py

import boto3

client = boto3.client('sns')

topics = client.list_topics()

print(topics)

topicArn = topics['Topics'][0]['TopicArn']

print(topicArn)

response = client.publish(
    TopicArn=topicArn,
    Message='Cricket is Live!!',
    Subject='PYTHON',
    MessageAttributes={
        'customer_interests': {
            'DataType': 'String',
            'StringValue': 'cricket',
        }
    }
)

print(response)