A client library for Apple's APNS v3 HTTP/2 push notification service
Python which supports TLSv1.2 is required. This means that only Python 2 version 2.7.11 and higher and Python 3 version 3.4.0 and higher are supported unless you use pyOpenSSL.
To install with pyOpenSSL support:
pip install apns3[pyopenssl]