boto/boto — pull request #852 by ohe (2012-07-05 13:59:47+00:00)
Title: Adds security token support to HmacAuthV3Handler

Connections to SES do not support IAM roles because the `HmacAuthV3Handler.add_auth` method does not set the header `x-amz-security-token` if the underlying `provider` contains a `security_token`.