TLS 1.0 will be deprecated on 30 June 2018 for the Xero API. After that date, TLS 1.1 or above must be used. Please read this page for more info.
PyXero is the recommended 3rd party SDK, which supports all API application types:
The video below gets you up and running with the Public App example.
We would appreciate any feedback or bug reports on these wrappers.