S3 Versioning - Get all versions for S3 file, saved with correct OS modified timestaps

save_all_versions_in_prefix_to_folder_preserve_modified_time.py

import boto3
s3 = boto3.resource('s3')
import os 
file_root = '<your_root_pathname_here>'
bucket = s3.Bucket('<your_bucket_name_here>')
prefix = '<your_prefix_aka_folder_name_here'

last_version = None
for version in bucket.object_versions.filter(Prefix=prefix):
    filename = version.key + '_' + version.id
    full_path = file_root + filename
    bucket.download_file(version.key, file_root + filename, ExtraArgs={'VersionId': version.id} )
    os.utime(full_path, (version.last_modified.timestamp(), version.last_modified.timestamp()))
    print('Saved {} and set modified time {}'.format(full_path, version.last_modified))