Few that aren't running a charity use Python 3 in production web apps. Rack <-> WSGI Werkzeug is just an app server on top of WSGI that happens to be very nic

Few that aren't running a charity use Python 3 in production web apps. Rack <-> WSGI Werkzeug is just an app server on top of WSGI that happens to be very nice, with features like the above described.