get_s3_chunk.py

def lambda_handler(event, context):
    if event is None:
        print("Couldn't find the object or byte range!")
        return

    # The byte range is passed from the Chunking function
    start_byte = event['start_byte']
    end_byte = event['end_byte']
    bucket = event['bucket']
    key = event['key']
    
    object = s3.get_object(Bucket=bucket, Key=key, Range='bytes={}-{}'.format(start_byte, end_byte))
    
    # Do your basic cleaning