Working in this documentation ...
import boto3
access_key_id = 'your_access_key_id'
secret_key = 'your_secret_key'
telezon_s3_url = 'https://your-instance.herokuapp.com'
s3 = boto3.client(
's3',
aws_access_key_id=access_key_id,
aws_secret_access_key=secret_key,
endpoint_url=telezon_s3_url
)
s3.upload_file('filename_example.jpg', 'bucket_name', 'id_name_for_file')
s3.download_file('bucket_name', 'id_name_for_file', 'downloaded_filename.jpg')