Migrate AWS S3 bucket content to another bucket, keeping metadatas

migrate_s3.py

import boto3

old_access_key_id = '***'
old_secret_access_key = '***'
old_bucket_name = '***'

new_access_key_id = '***'
new_secret_access_key = '***'
new_bucket_name = '***'


old_s3 = boto3.resource(
  's3'
  aws_access_key_id=old_access_key_id,
  aws_secret_access_key=old_secret_access_key,
)
old_bucket = s3.Bucket(old_bucket_name)
new_s3 = boto3.resource(
    's3',
    aws_access_key_id=new_access_key_id,
    aws_secret_access_key=new_secret_access_key,
)
new_bucket = new_s3.Bucket(new_bucket_name)

for obj_sumary in old_bucket.objects.all():
    obj = obj_sumary.Object()
    new_bucket.put_object(
        Key=obj.key,
        Body=obj.get()['Body'].read(),
        Metadata=obj.metadata
    )