Posted on Jan 15, 2019

Python code to copy all objects from one S3 bucket to another

import boto3 s3_resource = boto3.resource('s3') new_bucket_name = "targetBucketName" bucket_to_copy = "sourceBucketName" for key in s3.list_objects(Bucket=bucket_to_copy)['Contents']: files = key['Key'] copy_source = {'Bucket': "bucket_to_copy",'Key': files} s3_resource.meta.client.copy(copy_source, new_bucket_name, files) print(files)

Top comments (5)

Venkatesh Sharma • Jul 27 '20

I've copied above code and getting error for "s3.list_objects" in for loop, below error :
NameError: name 's3' is not defined

Maksim Kumundzhiev • Sep 10 '20

Probably the author forget to change:

s3 on s3_resource

E.g.:

import boto3 s3_resource = boto3.resource('s3') new_bucket_name = "targetBucketName" bucket_to_copy = "sourceBucketName" for key in s3_resource.list_objects(Bucket=bucket_to_copy)['Contents']: files = key['Key'] copy_source = {'Bucket': "bucket_to_copy",'Key': files} s3_resource.meta.client.copy(copy_source, new_bucket_name, files) print(files)