uWSGI is a fast , self-healing, developer/sysadmin-friendly application container server. Born as a WSGI-only server, over time it has evolved in a complete stack for networked/clustered web applications, implementing message/object passing, caching, RPC and process management. It uses the uwsgi protocol for all the networking/interprocess communications. Can be run in preforking mode, threaded, asynchronous/evented and supports various form of green threads/co-routine . Sysadmin will love it as it can be configured via command line, environment variables, xml, .ini and yaml files and via LDAP. Being fully modular can use tons of different technology on top of the same core.