uWSGI is a fast (pure C), self-healing, developer-friendly WSGI server, aimed for professional python webapps deployment and development. Over time it has evolved in a complete stack for networked/clustered python applications, implementing message/object passing and process management. It uses the uwsgi (all lowercase) protocol for all the networking/interprocess communications. From the 0.9.5 release it includes a plugin loading technology that can be used to add support for other languages or platform. A Lua wsapi adaptor, a PSGI handler and an Erlang message exchanger are already available.