**twspy** is a standalone implementation of web sockets for Python, defined by
[RFC 6455](http://tools.ietf.org/html/rfc6455).

- The websocket class upgrades a regular socket to a web socket. A websocket
  instance is a single end point of a connection. A websocket instance sends
  and receives frames (Frame instances) as opposed to bytes (which is received
  in a regular socket).

- A Connection instance represents a connection between two end points, based
  on a websocket instance. A connection handles control frames properly, and
  sends/receives *messages* (which are higher-level than frames). Messages are
  automatically converted to frames, and received frames are converted to
  messages. Fragmented messages (messages consisting of multiple frames) are
  also supported.