Write a Python script to list all objects in a given S3 bucket and log their names. Include basic error handling for cases such as missing buckets or incorrect permissions.

Question

Assisting AI · Accepted Answer

Here is a concise script that uses boto3 to list objects in an S3 bucket with error handling:

```python
import boto3
from botocore.exceptions import ClientError

s3 = boto3.client('s3')
bucket_name = 'my-bucket'

try:
    paginator = s3.get_paginator('list_objects_v2')
    for page in paginator.paginate(Bucket=bucket_name):
        for obj in page.get('Contents', []):
            print(obj['Key'])
except ClientError as e:
    error_code = e.response['Error']['Code']
    if error_code == 'NoSuchBucket':
        print(f"Bucket {bucket_name} does not exist.")
    elif error_code == 'AccessDenied':
        print(f"Access denied to bucket {bucket_name}. Check IAM permissions.")
    else:
        print(f"Unexpected error: {e}")
```

The script uses a paginator to handle buckets with many objects, prints each key, and catches common errors such as missing buckets or insufficient permissions. The `ClientError` exception provides an error code that we can use to give clear feedback to the user.

Write a Python script to list all objects in a given S3 bucket and log their names. Include basic error handling for cases such as missing buckets or incorrect permissions.

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