Lambda s3 delete function

import json
import urllib
import boto3

s3 = boto3.client('s3')

def lambda_handler(event, context):
    bucket = event['Records'][0]['s3']['bucket']['name']
    key = urllib.unquote_plus(event['Records'][0]['s3']['object']['key']).decode('utf8')
    try:
        response = s3.delete_object(Bucket=bucket, Key=key)
    except Exception as e:
        print(e)
        raise e