[Answered ]-Save pillow objects to S3 with django_storages

You can use boto3 to upload files to s3.

import boto3

client = boto3.client('s3')
# For more client configuration http://boto3.readthedocs.io/en/latest/

def upload_s3(files):
for f in files:
    print(f)
    response = client.put_object(
        Body= f,
        Bucket=<bucket_name>,
        Key=<location/directory>
    )
# More code here