python3-wsproto 0.15.0-3 (amd64 binary) in ubuntu impish

 Pure-Python implementation of a WebSocket protocol stack. It's
 written from the ground up to be embeddable in whatever program you
 choose to use, ensuring that you can communicate via WebSockets, as
 defined in RFC6455, regardless of your programming paradigm.
 .
 This is the Python3 package.