Gets all S3 Buckets and creates an Intelligent Tiering Lifecycle Rule on all of them.

set-intelligent-lifecycle.py

import boto3
from datetime import date
from datetime import datetime
today = date.today()
today = datetime.combine(today, datetime.min.time())

client = boto3.client('s3')

# Get all buckets
response = client.list_buckets()

Buckets = (response['Buckets'])
BucketNames = []
for i in Buckets:
    BucketNames.append(i['Name'])

for i in BucketNames:
    response = client.put_bucket_lifecycle_configuration(
        Bucket=i,
        LifecycleConfiguration={
            'Rules': [
                {
                    'Prefix': '',
                    'Status': 'Enabled',
                    'Transitions': [
                        {
                            'Days': 0,
                            'StorageClass': 'INTELLIGENT_TIERING'  
                        },
                    ]
                }
            ]
        }
    )
    if response['ResponseMetadata']['HTTPStatusCode'] == 200:
        print('Bucket ' + i + ' has had Intelligent Tiering enabled.')