Mailchimp has shut down API 1.1, 1.2, and 1.3 as of April 2, 2019.

[teewuane]

I was pulling my hair out getting a response that looked like this.

HTTPRequestException: {"url": "https://us8.api.mailchimp.com/1.3/?method=ping", "status_code": 410, "reason": "Gone"}

I finally dug in and learned that they shutdown the api that is in use.

https://developer.mailchimp.com

This isn't so much an issue but something that would be nice to see on the README file for this project :)

[Gesias]

True dat, just found out now. Thanks for posting the update!