Binary package “python-websocket” in ubuntu xenial

WebSocket client library for Python

 websocket-client provides a low-level, synchronous API providing WebSocket
 client functionality to Python programs. It conforms to the WebSocket
 specification as standardized by the IETF in RFC 6455.
 WebSocket is a protocol providing full-duplex communication channels over
 TCP, mostly used in Web browsers.
 This is the Python 2 version.