mp.copy_part_from_key('source_bucket', 'path/to/source/key', 4, 3000000000,
    3999999999)
mp.copy_part_from_key('source_bucket', 'path/to/source/key', 5, 4000000000,
    4999999999)
mp.copy_part_from_key('source_bucket', 'path/to/source/key', 6, 5000000000,
    5500345712)
mp.complete_upload()
How can I copy files bigger than 5 GB in Amazon S3?