Boto is the de facto standard for working with the AWS API from Python. Unfortunately their SES implementation only sends text or html emails, not both. You need to drop down to their send_raw_email method to send a multi-part email.
Using this Gist as a guideline, here’s an implementation of sending a multi-part email via a library class:
You’ll also need to add your AWS access key and secret to your settings file:
You can then use the class like this: