擅长:python、mysql、java
<p>您需要在代码中定义一个函数。代码缺少名为<code>lambda_handler</code>的函数。您的代码应该如下所示:</p>
<pre><code> import botocore
import boto3
def lambda_handler(event, context):
s3 = boto3.resource('s3')
bucket = s3.Bucket('bucketname')
exists = True
try:
s3.meta.client.head_bucket(Bucket='bucketname')
except botocore.exceptions.ClientError as e:
# If a client error is thrown, then check that it was a 404 error.
# If it was a 404 error, then the bucket does not exist.
error_code = int(e.response['Error']['Code'])
if error_code == 404:
exists = False
</code></pre>