title: How to conduct a multipart upload to a Digital Ocean space via AWS SDK boto3?
body: <p>I am trying to establish the correct way of initiating and handling a multi-part upload to a Digital Ocean using the boto3 SDK. </p>
  
  <p>So far I have been able to create a Space (Bucket) via the SDK, but past that the documentation I can find really doesn't cover much else in direct relation to Digital Ocean spaces.
  Below is what I have tried when attempting to initiate a multipart upload, which returns the error: <em>'S3' object has no attribute 'initiate_multipart_upload</em></p>
  
  <pre><code>client = session.client('s3',
                              region_name=str(region),
                              endpoint_url='https://{REGION}.digitaloceanspaces.com'.format(REGION=region),
                              aws_access_key_id=str(constants.DIGITAL_OCEAN_API_KEY),
                              aws_secret_access_key=str(constants.DIGITAL_OCEAN_API_SECRET_KEY))
  
  response = client.initiate_multipart_upload(Bucket=bucket_id,Key=chunk_data)
  </code></pre>